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You searched for: Subject Triticum aestivum Remove constraint Subject: Triticum aestivum Subject dose response Remove constraint Subject: dose response
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1. Resistance to 2,4-D in Palmer Amaranth (Amaranthus palmeri) from Kansas is Mediated by Enhanced Metabolism

Author:
Chandrima Shyam; Dallas E. Peterson; Mithila Jugulam
Source:
Weed science 2022 v.70 no.4 pp. 390-400
ISSN:
0043-1745
Subject:
2,4-D; Amaranthus palmeri; Triticum aestivum; absorption; conservation tillage; cytochrome P-450; dose response; malathion; metabolism; metabolites; piperonyl butoxide; weed science; wheat; Kansas
Abstract:
... A Palmer amaranth (Amaranthus palmeri S. Watson) population (KCTR: KS Conservation Tillage Resistant) collected from a conservation tillage field was confirmed with resistance to herbicides targeting at least six sites of action, including 2,4-D. The objectives of this research were using KCTR A. palmeri to investigate (1) the level of 2,4-D resistance, (2) 2,4-D absorption and translocation profi ...
DOI:
10.1017/wsc.2022.29

2. Absence of Nanoparticle-Induced Drought Tolerance in Nutrient Sufficient Wheat Seedlings

Author:
Matthew Potter; Justin Deakin; Anthony Cartwright; Joshua Hortin; Dakota Sparks; Anne J. Anderson; Joan E. McLean; Astrid Jacobson; David W. Britt
Source:
Environmental science & technology 2021 v.55 no.20 pp. 13541-13550
ISSN:
1520-5851
Subject:
Pseudomonas chlororaphis; Triticum aestivum; climate; cultivars; dose response; drought; drought tolerance; environmental science; fertilizers; microbiome; nutrition; rhizosphere; water content; water stress; wheat
Abstract:
... Strategies to reduce crop losses due to drought are needed as climate variability affects agricultural productivity. Wheat (Triticum aestivum var. Juniper) growth in a nutrient-sufficient, solid growth matrix containing varied doses of CuO, ZnO, and SiO₂ nanoparticles (NPs) was used to evaluate NP mitigation of drought stress. NP amendments were at fertilizer levels, with maxima of 30 Cu, 20 Zn, a ...
DOI:
10.1021/acs.est.1c00453
CHORUS:
10.1021/acs.est.1c00453

3. Cytotoxicity, phytotoxicity, and photocatalytic assessment of biopolymer cellulose-mediated silver nanoparticles

Author:
Sekar Vijayakumar; Jingdi Chen; M. Amarnath; Kanchanlata Tungare; Mustansir Bhori; Mani Divya; Zaira I. González-Sánchez; Esteban F. Durán-Lara; Baskaralingam Vaseeharan
Source:
Colloids and surfaces 2021 v.628 pp. 127270
ISSN:
0927-7757
Subject:
Triticum aestivum; Vigna radiata; biopolymers; breast neoplasms; cellulose; crystal structure; cytotoxicity; dose response; humans; keratinocytes; methylene blue; nanosilver; photocatalysis; phytotoxicity; seed germination; viability; wheat
Abstract:
... The appearance of silver nanoparticles (Ag NPs), their exponential production and the consumer products that contain them have raised concerns about their potential risks. Hence, the monitoring of Ag NPs in environmental and biological systems is of vital importance. Furthermore, until now, the information about the toxicity of Ag NPs synthesized from green sources rather than polluting methods is ...
DOI:
10.1016/j.colsurfa.2021.127270

4. Feral rye control in quizalofop‐resistant wheat in central Great Plains

Author:
Vipan Kumar; Rui Liu; Misha R. Manuchehri; Eric P. Westra; Todd A. Gaines; Chad W. Shelton
Source:
Agronomy journal 2021 v.113 no.1 pp. 407-418
ISSN:
0002-1962
Subject:
Secale cereale; Triticum aestivum; agronomy; biomass; dose response; grass weeds; quizalofop; rye; spring; winter wheat; Colorado; Great Plains region; Kansas; Oklahoma
Abstract:
... Feral rye (Secale cereale L.) is one of the most troublesome winter annual grass weed species in semi‐arid winter wheat (Triticum aestivum L.) production systems across the central Great Plains (CGP). Lack of effective herbicide options further complicates the selective control of feral rye in winter wheat. The main objectives of this research were: (a) determine the sensitivity response of 10 fer ...
DOI:
10.1002/agj2.20484

5. Field application of pure polyethylene microplastic has no significant short-term effect on soil biological quality and function

Author:
Robert W. Brown; David R. Chadwick; Harriet Thornton; Miles R. Marshall; Shuikuan Bei; Marco A. Distaso; Rafael Bargiela; Karina A. Marsden; Peta L. Clode; Daniel V. Murphy; Saskia Pagella; Davey L. Jones
Source:
Soil biology & biochemistry 2022 v.165 pp. 108496
ISSN:
0038-0717
Subject:
Triticum aestivum; agroecosystems; biogenic amines; biomass; dose response; environmental health; fertilizer application; food production; genes; metabolomics; microplastics; nitrogen; nitrogen fertilizers; nitrous oxide; polyethylene; soil; soil bacteria; wheat
Abstract:
... Plastics are now widespread in the natural environment. Due to their size, microplastics (MPs; defined as particles <5 mm) in particular, have the potential to cause damage and harm to organisms and may lead to a potential loss of ecosystem services. Research has demonstrated the significant impact of MPs on aquatic systems; however, little is known about their effects on the terrestrial environme ...
DOI:
10.1016/j.soilbio.2021.108496

6. Lanthanum and cerium disrupt similar biological pathways and interact synergistically in Triticum aestivum as revealed by metabolomic profiling and quantitative modeling

Author:
Erkai He; Hao Qiu
Source:
Journal of hazardous materials 2022 v.426 pp. 127831
ISSN:
0304-3894
Subject:
DNA damage; Triticum aestivum; biochemical pathways; cerium; dose response; energy expenditure; fructose; glycerophospholipids; lanthanum; mannose; mass spectrometry; mechanism of action; metabolism; metabolites; metabolomics; oxidative stress; root growth; starch; sucrose; synergism; toxicity
Abstract:
... The industrial and agricultural applications of rare earth elements (REEs) lead to considerable REE emissions into environment. Yet, little is known about the molecular-level effects and interactions of REEs in terrestrial plants. Herein, the individual and joint effects of La and Ce in Triticum aestivum were investigated using mass spectrometry-based metabolomics. Metabolic effect level index (ME ...
DOI:
10.1016/j.jhazmat.2021.127831

7. Response of broadleaf and grass cover crop species to soil residues of glyphosate and aminomethylphosphonic acid (AMPA)

Author:
Zahoor A. Ganie; Amit J. Jhala
Source:
Weed technology 2021 v.35 no.6 pp. 1038-1044
ISSN:
1550-2740
Subject:
Pisum sativum subsp. sativum var. arvense; Secale cereale; Trifolium incarnatum; Triticum aestivum; Vicia villosa; aboveground biomass; cover crops; dose response; glyphosate; grasses; greenhouses; metabolites; peas; rye; seed germination; silty clay loam soils; technology; weeds; winter wheat
Abstract:
... Glyphosate is the most widely used herbicide in the United States; however, concern is escalating about increasing residues of glyphosate and its metabolite aminomethylphosphonic acid (AMPA) in soil. There is a lack of scientific literature examining the response of cover crops to soil residues of glyphosate or AMPA. The objectives of this study were to evaluate the impact of glyphosate or AMPA re ...
DOI:
10.1017/wet.2021.77

8. Wheat Density Alters but Does Not Repress the Expression of a Fluroxypyr-Resistant Kochia (Bassia scoparia) Phenotype

Author:
Charles M. Geddes; Michael T. Kimmins
Source:
Agronomy 2021 v.11 no.11 pp. -
ISSN:
2073-4395
Subject:
Bassia scoparia; Triticum aestivum; agronomy; biomass; dose response; fluroxypyr; herbicide resistance; mortality; phenotype; spring wheat
Abstract:
... Dose-response experiments for confirmation of herbicide-resistant weeds are almost always conducted using weed monocultures, thereby ignoring the interaction of interspecific plant interference with herbicide efficacy. Controlled-environment dose-response bioassays were conducted using three kochia [Bassia scoparia (L.) A.J. Scott] populations with four spring wheat (Triticum aestivum L.) densitie ...
DOI:
10.3390/agronomy11112160

9. The target-site based resistance mechanism of Alopecurus myosuroides Huds. To pyroxsulam

Author:
Zhaofeng Huang; Xingtao Lu; Shouhui Wei; Chaoxian Zhang; Cuilan Jiang; Wenyu Li; Muhammad Saeed; Hongjuan Huang
Source:
Crop protection 2021 v.147 pp. 105707
ISSN:
0261-2194
Subject:
Alopecurus myosuroides; Triticum aestivum; acetolactate synthase; dose response; mutation; plant protection; pyroxsulam; weeds; winter wheat; China
Abstract:
... Alopecurus myosuroides Huds. is a troublesome weed in wheat (Triticum aestivum L.) fields. In 2017, two A. myosuroides populations that survived pyroxsulam treatment at the recommended field rate were collected from winter wheat fields in China. This study was conducted to determine the resistance level and the basis of resistance to pyroxsulam in A. myosuroides. Sequencing of acetolactate synthas ...
DOI:
10.1016/j.cropro.2021.105707

10. The Basis of Tolerance Mechanism to Metsulfuron-Methyl in Roegneria kamoji (Triticeae: Poaceae)

Author:
Wei Tang; Shengnan Liu; Xiaoyue Yu; Yongjie Yang; Xiaogang Zhou; Yongliang Lu
Source:
Plants 2021 v.10 no.9 pp. -
ISSN:
2223-7747
Subject:
Elymus tsukushiensis var. transiens; Triticum aestivum; acetolactate synthase; acetyl-CoA carboxylase; amino acids; at-risk population; bispyribac-sodium; cytochrome P-450; dose response; genes; glutathione transferase; malathion; metabolism; metsulfuron; weeds; winter wheat; China
Abstract:
... Roegneria kamoji, a perennial monocot weed that belongs to the tribe Triticeae (family: Poaceae), is an emerging problematic weed in winter wheat (Triticum aestivum) fields in China. We have previously confirmed four R. kamoji populations tolerant to acetyl-CoA carboxylase (ACCase) inhibitors, and failed control of these populations by metsulfuron-methyl was observed. The objective of this study w ...
DOI:
10.3390/plants10091823

11. Comparative transcriptome analyses for metribuzin tolerance provide insights into key genes and mechanisms restoring photosynthetic efficiency in bread wheat (Triticum aestivum L.)

Author:
Roopali Bhoite; Ping Si; Kadambot H.M. Siddique; Guijun Yan
Source:
Genomics 2021 v.113 no.3 pp. 910-918
ISSN:
0888-7543
Subject:
Triticum aestivum; chlorophyll; dose response; genomics; glucose; marker-assisted selection; metribuzin; photosystem II; sequence analysis; transcriptome; weed control; wheat
Abstract:
... Weeds are the biggest threat to cropping system sustainability in wheat. Metribuzin is a versatile herbicide for broad-spectrum weed management. Understanding key genes, mechanisms and functional markers are essential to develop higher metribuzin tolerant wheats. We identified Chuan Mai 25 (tolerant) and Ritchie (susceptible) as contrasting genotypes to metribuzin stress through dose-response anal ...
DOI:
10.1016/j.ygeno.2021.02.004

12. Cross-Resistance to Acetyl-CoA Carboxylase–Inhibiting Herbicides Conferred by a Target-Site Mutation in Perennial Ryegrass (Lolium perenne) from Argentina

Author:
Marcos Yanniccari; Ramón Gigón
Source:
Weed science 2020 v.68 no.2 pp. 116-124
ISSN:
0043-1745
Subject:
Hordeum vulgare; Lolium perenne; Triticum aestivum; acetyl coenzyme A; acetyl-CoA carboxylase; at-risk population; barley; clethodim; cross resistance; dose response; enzyme inhibitors; glyphosate; glyphosate resistance; grain crops; point mutation; quizalofop; seeds; selection pressure; site-directed mutagenesis; weed science; wheat; winter; Argentina
Abstract:
... In Argentina, Lolium spp. occur in 40% of winter cereal crops from the Pampas. Several years ago, cases of glyphosate-resistant perennial ryegrass (Lolium perenne L.) were detected, and the use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides to eradicate these plants has been considered. The aim of this study was to evaluate the sensitivity of a putative pinoxaden-resistant L. perenne pop ...
DOI:
10.1017/wsc.2020.1

13. Cultivar variation for imazamox resistance in wheat (Triticum aestivum L.): Insights into enzymatic assays for early selection

Author:
Gabriela Breccia; Liliana Picardi; Graciela Nestares
Source:
Plant physiology and biochemistry 2020 v.151 pp. 438-442
ISSN:
0981-9428
Subject:
Triticum aestivum; acetolactate synthase; cultivars; dose response; early selection; genetic background; herbicide resistance; imazamox; major genes; plant growth; resistance genes; wheat
Abstract:
... Acetohydroxyacid synthase (AHAS, E.C. 2.2.1.6) is the target site of several herbicide classes including imidazolinones. Imidazolinone resistance in wheat is conferred by two major genes AhasL-D1 and AhasL-B1. The objective of this work was to evaluate the in vitro and in vivo AHAS activity and plant growth in response to imazamox of nine wheat cultivars. Dose-response curves for two-gene resistan ...
DOI:
10.1016/j.plaphy.2020.03.045

14. Mesotrione: a new preemergence herbicide option for wild radish (Raphanus raphanistrum) control in wheat

Author:
Michael J. Walsh; Peter Newman; Paul Chatfield
Source:
Weed technology 2021 v.35 no.6 pp. 924-931
ISSN:
1550-2740
Subject:
4-hydroxyphenylpyruvate dioxygenase; Raphanus raphanistrum; Triticum aestivum; biomass; broadleaf weeds; bromoxynil; dose response; herbicide resistance; mesotrione; radishes; technology; wheat
Abstract:
... Wild radish is the most problematic broadleaf weed in Australian grain production. The propensity of wild radish to evolve resistance to herbicides has led to high frequencies of multiple herbicide–resistant populations present in these grain production regions. The objective of this study was to evaluate the potential of mesotrione to selectively control wild radish in wheat. The initial dose res ...
DOI:
10.1017/wet.2021.90

15. Nature of phytotoxic interference of alien weed ‘Calyptocarpus vialis’ against some crop plants

Author:
Roop Lal; Amarpreet Kaur; Shalinder Kaur; Daizy Rani Batish; Harminder Pal Singh; Mansi Sharma; Ravinder K. Kohli
Source:
Environmental monitoring and assessment 2021 v.193 no.6 pp. 334
ISSN:
0167-6369
Subject:
Avena sativa; Brassica nigra; Synedrella; Triticum aestivum; allelochemicals; allelopathy; bioassays; crops; dose response; electrical conductivity; liquid chromatography; mass spectrometry; pH; phytotoxicity; phytotoxins; soil; water solubility; weeds; Africa; East Asia; India
Abstract:
... Calyptocarpus vialis (syn. Synedrella vialis; Asteraceae), a native of the tropical Americas, has acquired an invasive status in the eastern Asia and Africa and, of late, in India. It is an annual herbaceous weed that forms a dominant ground cover due to its prostrate expansion and interferes with the growth of other plant species. However, the reasons for this interference are largely unknown. Th ...
DOI:
10.1007/s10661-021-09092-0

16. Silicon nutrition modulates arsenic-inflicted oxidative overload and thiol metabolism in wheat (Triticum aestivum L.) seedlings

Author:
Palin Sil; Asok K. Biswas
Source:
Environmental science and pollution research 2020 v.27 no.36 pp. 45209-45224
ISSN:
0944-1344
Subject:
Triticum aestivum; antioxidant enzymes; arsenates; arsenites; cultivars; dose response; food safety; hydroponics; metabolism; nutrition; oxidative stress; oxidoreductases; phytochelatins; pollution; research; silicates; silicon; thiols; wheat
Abstract:
... A hydroponic experiment was conducted to establish the response of exogenous silicon [Si] in alleviating arsenate [As (V)] prompted alterations on antioxidant enzyme activities and thiol metabolism in wheat (Triticum aestivum L. cv PBW 343) seedlings. Objective of the work was to validate the hypothesis whether silicate may alleviate arsenate-provoked oxidative stress in wheat through diverse meta ...
DOI:
10.1007/s11356-020-10369-z

17. Carbohydrate and plant hormone regulate the alkali stress response of hexaploid wheat (Triticum aestivum L.)

Author:
Binbin Xiao; Huiying Lu; Changyou Li; Nadeem Bhanbhro; Xiulin Cui; Chunwu Yang
Source:
Environmental and experimental botany 2020 v.175 pp. 104053
ISSN:
0098-8472
Subject:
Triticum aestivum; alkali tolerance; carbohydrates; crops; cytosol; dehydrins; dose response; gene expression; gene expression regulation; genes; germination; hexaploidy; indole acetic acid; inorganic ions; jasmonic acid; leaves; metabolism; pH; salicylic acid; salinity; seedlings; seeds; signal transduction; sodium; sodium bicarbonate; sodium carbonate; solutes; stress response; stress tolerance; thermogravimetry; toxicity; transcriptomics; wheat
Abstract:
... Most types of stress influence crop plants at intervals. Unlike other stresses, salt and alkali stresses influence crop plants for their entire life cycle. However, little is known about physiological and molecular response of crop plants to long-term salinity or long-term alkali stress (LAS) condition. In the present study, we subjected hexaploid wheat seeds to LAS treatment (NaHCO₃/Na₂CO₃, 9:1; ...
DOI:
10.1016/j.envexpbot.2020.104053

18. Control of thiocarbamate-resistant rigid ryegrass (Lolium rigidum) in wheat in southern Australia

Author:
David J. Brunton; Peter Boutsalis; Gurjeet Gill; Christopher Preston
Source:
Weed technology 2019 v.34 no.1 pp. 19-24
ISSN:
1550-2740
Subject:
Lolium rigidum; Triticum aestivum; dose response; field experimentation; glyphosate; grain yield; herbicide resistance; metolachlor; pyroxasulfone; seed set; triallate; trifluralin; weeds; wheat; South Australia
Abstract:
... Two field experiments were conducted during 2018 at Paskeville and Arthurton, South Australia, to identify effective herbicide options for the control of thiocarbamate-resistant rigid ryegrass in wheat. Dose–response experiments confirmed resistance in both field populations (T1 and A18) of rigid ryegrass to triallate, prosulfocarb, trifluralin, and pyroxasulfone. T1 and A18 were 17.9- and 20-fold ...
DOI:
10.1017/wet.2019.72

19. Dicamba-resistant kochia (Bassia scoparia) in Kansas: characterization and management with fall- or spring-applied PRE herbicides

Author:
Vipan Kumar; Ryan P. Engel; Randall Currie; Prashant Jha; Phillip W. Stahlman; Curtis Thompson
Source:
Weed technology 2019 v.33 no.2 pp. 342-348
ISSN:
1550-2740
Subject:
Bassia scoparia; Sorghum bicolor; Triticum aestivum; Zea mays; atrazine; autumn; corn; crop rotation; dicamba; dose response; fallow; field experimentation; grain sorghum; greenhouses; growers; growing season; metribuzin; pendimethalin; spring; sulfentrazone; summer; weeds; wheat; Great Plains region; Kansas
Abstract:
... Dicamba-resistant (DR) kochia is an increasing concern for growers in the US Great Plains, including Kansas. Greenhouse and field experiments (Garden City and Tribune, KS, in the 2014 to 2015 growing season) were conducted to characterize the dicamba resistance levels in two recently evolved DR kochia accessions collected from fallow fields (wheat–sorghum–fallow rotation) near Hays, KS, and to det ...
DOI:
10.1017/wet.2019.4

20. External Nitrogen and Carbon Source-Mediated Response on Modulation of Root System Architecture and Nitrate Uptake in Wheat Seedlings

Author:
Subodh Kumar Sinha; Akanksha Tyagi; Pranab Kumar Mandal
Source:
Journal of plant growth regulation 2019 v.38 no.1 pp. 283-297
ISSN:
0721-7595
Subject:
Triticum aestivum; asparagine; carbon; crops; dose response; gene expression regulation; genes; glutamine; nitrates; nitrogen; nutrient use efficiency; root systems; roots; seedlings; shoots; sucrose; tissues; transporters; wheat
Abstract:
... Nitrogen uptake efficiency is an important component trait that could be targeted for improving nitrogen use efficiency of crop plants. To understand the responses of different nitrate transport systems and the influence of root system architecture on nitrate uptake under limited nitrate conditions in wheat (Triticum aestivum L.) at the seedling stage, we studied nitrate uptake, root system archit ...
DOI:
10.1007/s00344-018-9840-9

21. Fine mapping and characterization of the awn inhibitor B1 locus in common wheat (Triticum aestivum L.)

Author:
Jianqing Niu; Shusong Zheng; Xiaoli Shi; Yaoqi Si; Shuiquan Tian; Yilin He; Hong-Qing Ling
Source:
crop journal 2020 v.8 no.4 pp. 613-622
ISSN:
2214-5141
Subject:
Triticum aestivum; agronomic traits; awns; dose response; gene expression regulation; genes; grain yield; heterozygosity; inbred lines; loci; phenotype; photosynthesis; seed dispersal; sequence analysis; single nucleotide polymorphism; wheat
Abstract:
... Awns play an important role in seed dispersal and photosynthesis of spikes. Three major awn inhibitors (Hd, B1, and B2) are reported in wheat. However, the molecular mechanism underlying awnlessness remained unknown until recently. In this study, we identified two F₈ recombinant inbred lines (RILs) that were segregating for awn length. In order to identify the causal gene for awn length in the het ...
DOI:
10.1016/j.cj.2019.12.005

22. Graphene oxide effects in early ontogenetic stages of Triticum aestivum L. seedlings

Author:
Gabriela Vochita; Lacramioara Oprica; Daniela Gherghel; Cosmin-Teodor Mihai; Rabah Boukherroub; Andrei Lobiuc
Source:
Ecotoxicology and environmental safety 2019 v.181 pp. 345-352
ISSN:
0147-6513
Subject:
Triticum aestivum; antioxidant activity; carotenoids; catalase; chlorophyll; crops; dose response; electronic equipment; enzyme activity; extracellular space; food industry; free radical scavengers; fruits; germination; graphene oxide; manufacturing; medicine; mitosis; mutagens; nanomaterials; ontogeny; oxidative stress; peroxidase; pigments; polyphenols; superoxide dismutase; toxicity; transmission electron microscopy; wheat
Abstract:
... Nanomaterials are being used increasingly in various areas such as electronic devices manufacture, medicine, mechanical devices production, and even food industry. Therefore, the evaluation of their toxicity is mandatory. Graphene oxide (GO) has been shown to have both positive as well as negative impact on different crop plants, depending on species, dose, and duration of exposure. The current st ...
DOI:
10.1016/j.ecoenv.2019.06.026

23. Phenolic compounds and allelopathic activities of ancient emmer wheats: perspective for non-chemical weed control scenarios

Author:
Samira Fatholahi; Hassan Karimmojeni; Parviz Ehsanzadeh
Source:
Acta physiologiae plantarum 2020 v.42 no.8 pp. 135
ISSN:
0137-5881
Subject:
Raphanus sativus; Triticum aestivum; Triticum turgidum subsp. dicoccon; allelochemicals; bioassays; chemical defenses; diodes; dose response; flavonoids; genotype; hexaploidy; high performance liquid chromatography; phytotoxins; polyphenols; seedling growth; sustainable agriculture; syringic acid; tetraploidy; weed control; wheat
Abstract:
... Phenolic compounds are natural phytotoxins which play role as chemical defense compounds in wheat species. However, the contribution and role of phenolic compounds in ancient and modern wheat genotypes for plant-to-plant interference are equivocal. Biological screening of seven wheat genotypes including five emmer wheat genotypes of Triticum turgidum ssp. dicoccum (Zarneh, Singerd, Shahrekord, Kho ...
DOI:
10.1007/s11738-020-03128-7

24. Target-Site Resistance Mechanisms to Tribenuron-Methyl and Cross-Resistance Patterns to ALS-Inhibiting Herbicides of Catchweed Bedstraw (Galium aparine) with Different ALS Mutations

Author:
Wei Deng; Yingjie Di; Jingxuan Cai; Yueyang Chen; Shuzhong Yuan
Source:
Weed science 2019 v.67 no.2 pp. 183-188
ISSN:
0043-1745
Subject:
Galium aparine; Triticum aestivum; acetolactate synthase; at-risk population; broadleaf weeds; cross resistance; dose response; flumetsulam; heterozygosity; homozygosity; imazethapyr; mutation; resistance mechanisms; weed control; winter wheat; China
Abstract:
... Catchweed bedstraw (Galium aparine L.) is a problematic dicot weed that occurs in major winter wheat (Triticum aestivum L.) fields in China. Tribenuron-methyl has been widely used to control broadleaf weeds since 1988 in China. However, overuse has led to the resistance evolution of G. aparine to tribenuron-methyl. In this study, 20 G. aparine populations collected from Shandong and Henan province ...
DOI:
10.1017/wsc.2018.70

25. Application of paclobutrazol: a strategy for inducing lodging resistance of wheat through mediation of plant height, stem physical strength, and lignin biosynthesis

Author:
Muhammad Kamran; Irshad Ahmad; Xiaorong Wu; Tiening Liu; Ruixia Ding; Qingfang Han
Source:
Environmental science and pollution research international 2018 v.25 no.29 pp. 29366-29378
ISSN:
0944-1344
Subject:
Triticum aestivum; bending strength; biosynthesis; center of gravity; culms; dose response; enzymes; grain crops; grain yield; internode length; internodes; lignin; lodging; lodging resistance; paclobutrazol; plant growth substances; plant height; risk; seeds; wheat
Abstract:
... Lodging is a major constraint contributing to poor grain yield and quality of wheat (Triticum aestivum L.) worldwide. The use of plant growth regulators is becoming a foremost agro-chemical approach for minimizing the risk of lodging in cereal crops. The present study was conducted to examine the effects of the paclobutrazol application on culm physical strength, lignin content, and lodging resist ...
DOI:
10.1007/s11356-018-2965-3

26. Dose-dependent physiological responses of Triticum aestivum L. to soil applied TiO2 nanoparticles: Alterations in chlorophyll content, H2O2 production, and genotoxicity

Author:
Rafia Rafique; Zahra Zahra; Nasar Virk; Muhammad Shahid; Eric Pinelli; Tae Jung Park; Jean Kallerhoff; Muhammad Arshad
Source:
Agriculture, ecosystems & environment 2018 v.255 pp. 95-101
ISSN:
0167-8809
Subject:
Triticum aestivum; biomass; chlorophyll; dose response; ecosystems; genotoxicity; hydrogen peroxide; nanoparticles; particle size; phosphorus; roots; shoots; soil; titanium dioxide; wheat
Abstract:
... Titanium dioxide nanoparticles (TiO2 NPs) are used widely in commercial products. These high production levels have led to their increased release into natural ecosystems, where they may interact with plants and affect their physiological functions. The aim of this study was to assess the physiological responses of wheat (Triticum aestivum L.) to increasing concentrations of TiO2 NPs. TiO2 NPs wit ...
DOI:
10.1016/j.agee.2017.12.010

27. Elevated CO2-induced production of nitric oxide differentially modulates nitrate assimilation and root growth of wheat seedlings in a nitrate dose-dependent manner

Author:
Sandeep B. Adavi; Lekshmy Sathee
Source:
Protoplasma 2019 v.256 no.1 pp. 147-159
ISSN:
0033-183X
Subject:
Triticum aestivum; carbon dioxide enrichment; dose response; enzyme activity; gene expression; humans; leaves; nitrate reductase; nitrates; nitric oxide; nitrogen; nitrogen content; plant tissues; protein content; root systems; seedlings; staple crops; transporters; wheat
Abstract:
... Wheat is a major staple food crop worldwide contributing approximately 20% of total protein consumed by mankind. The nitrogen and protein concentration of wheat crop and grain often decline as a result of exposure of the crop to elevated CO₂ (EC). The changes in nitrogen (N) assimilation, root system architecture, and nitric oxide (NO)-mediated N signaling and expression of genes involved in N ass ...
DOI:
10.1007/s00709-018-1285-2

28. Green synthesis of silver nanoparticles using Laminaria japonica extract: Characterization and seedling growth assessment

Author:
Dae-Young Kim; Rijuta Ganesh Saratale; Surendra Shinde; Asad Syed; Fuad Ameen; Gajanan Ghodake
Source:
Journal of cleaner production 2018 v.172 pp. 2910-2918
ISSN:
0959-6526
Subject:
Saccharina japonica; Triticum aestivum; Vigna mungo var. mungo; algae; ambient temperature; autoclaves; autoclaving; dose response; freeze drying; nanosilver; pH; roots; seedling growth; shelf life; shoots; silver nitrate; steam
Abstract:
... This study demonstrates a green route for the preparation of high-concentration suspensions of silver nanoparticles (AgNPs), by incubating AgNO₃ with Laminaria japonica algal extract. The rate of AgNPs synthesis significantly increased within 2 min of initiating the incubation and elevating temperature from 90 °C to 120 °C. This method was also suitable for preparing AgNPs at ambient temperature b ...
DOI:
10.1016/j.jclepro.2017.11.123

29. Isolation of Mutations Conferring Increased Glyphosate Resistance in Spring Wheat

Author:
Attawan Aramrak; Nevin C. Lawrence; Victor L. Demacon; Arron H. Carter; Kimberlee K. Kidwell; Ian C. Burke; Camille M. Steber
Source:
Crop science 2018 v.58 no.1 pp. 84-97
ISSN:
0011-183X
Subject:
3-phosphoshikimate 1-carboxyvinyltransferase; Triticum aestivum; amino acid substitution; breeding; consumer acceptance; crop rotation; cultivars; dominant genes; dose response; ethyl methanesulfonate; genetic background; glyphosate; glyphosate resistance; mutants; parents; screening; spring wheat; transgenic plants
Abstract:
... A mutation breeding approach was used to explore the feasibility of isolating glyphosate‐resistant (GR) wheat (Triticum aestivum L.) lines. Although transgenic GR wheat cultivars were developed, they were never introduced due to lack of consumer acceptance and concern over management of volunteer wheat in rotation. Large‐scale screening experiments recovered ethyl methanesulfonate mutants able to ...
DOI:
10.2135/cropsci2016.10.0861

30. Rhizosphere interactions between copper oxide nanoparticles and wheat root exudates in a sand matrix: Influences on copper bioavailability and uptake

Author:
Paul McManus; Joshua Hortin; Anne J. Anderson; Astrid R. Jacobson; David W. Britt; Joseph Stewart; Joan E. McLean
Source:
Environmental toxicology and chemistry 2018 v.37 no.10 pp. 2619-2632
ISSN:
0730-7268
Subject:
Triticum aestivum; bioavailability; biogeochemistry; calcium; citrates; copper nanoparticles; crop production; cupric oxide; dose response; exudation; fertilizers; fungicides; iron; magnesium; manganese; metabolites; models; phytosiderophores; pollutants; rhizosphere; root exudates; root growth; roots; sand; shoots; solubility; toxicity; wheat; zinc
Abstract:
... The impact of copper oxide nanoparticles (CuONPs) on crop production is dependent on the biogeochemistry of Cu in the rooting zone of the plant. The present study addressed the metabolites in wheat root exudates that increased dissolution of CuONPs and whether solubility correlated with Cu uptake into the plant. Bread wheat (Triticum aestivum cv. Dolores) was grown for 10 d with 0 to 300 mg Cu/kg ...
DOI:
10.1002/etc.4226
CHORUS:
10.1002/etc.4226

31. Role of alkyl silatranes as plant growth regulators: comparative substitution effect on root and shoot development of wheat and maize

Author:
Gurjaspreet Singh; Geetika Sharma; Sanchita; Pooja Kalra; Daizy R Batish; Vikas Verma
Source:
Journal of the science of food and agriculture 2018 v.98 no.13 pp. 5129-5133
ISSN:
0022-5142
Subject:
Triticum aestivum; Zea mays; corn; crops; dose response; microwave radiation; plant growth substances; roots; seeds; shoots; transesterification; wheat
Abstract:
... BACKGROUND: The present investigation reports the stimulating effects of different substituted alkyl silatranes (3a–3e) on the early seedling growth of wheat (Triticum aestivum) and maize (Zea mays). Seeds of these plants were exposed to six different concentrations (0, 10, 50, 100, 200 and 500 µmol L⁻¹). The results revealed that different substitutions (3a–3e) had different effects on root and s ...
DOI:
10.1002/jsfa.9052

32. Sitophilus zeamais adults have survival and nutrition affected by Schinus terebinthifolius leaf extract and its lectin (SteLL)

Author:
João Ricardo Sá Leitão Camaroti; Welton Aaron de Almeida; Bernardo do Rego Belmonte; Ana Patrícia Silva de Oliveira; Thâmarah de Albuquerque Lima; Magda Rhayanny Assunção Ferreira; Patrícia Maria Guedes Paiva; Luiz Alberto Lira Soares; Emmanuel Viana Pontual; Thiago Henrique Napoleão
Source:
Industrial crops and products 2018 v.116 pp. 81-89
ISSN:
0926-6690
Subject:
Schinus terebinthifolia; Sitophilus zeamais; Triticum aestivum; adults; amylases; artificial diets; biomass; digestive enzymes; dose response; enzyme activity; enzyme inhibition; flavonoids; flour; food conversion; gallic acid; ingestion; insect pests; insecticidal properties; leaf extracts; leaves; lectins; mortality; proteinases; starvation; tannins
Abstract:
... Alternative methods for controlling insect pests are required because of the hazards of synthetic chemicals to people and the environment. Lectins are proteins that have been reported as insecticidal agents; however, only one study on the effects of these proteins on Sitophilus zeamais Motsch. (maize weevil) has been performed. In the present study, we evaluated the effects of ingestion of artific ...
DOI:
10.1016/j.indcrop.2018.02.065

33. Confirmation of Glyphosate-Resistant Horseweed (Conyza canadensis) in Montana Cereal Production and Response to POST Herbicides

Author:
Vipan Kumar; Prashant Jha; Amit J. Jhala
Source:
Weed technology 2017 v.31 no.6 pp. 799-810
ISSN:
1550-2740
Subject:
Conyza canadensis; Triticum aestivum; best management practices; dose response; glyphosate; greenhouse experimentation; herbicide resistance; seeds; wheat; Great Plains region; Montana; Nebraska
Abstract:
... In recent years, horseweed has become an increasing problem in Montana. To confirm and characterize the level of glyphosate resistance, seeds were collected from putative glyphosate-resistant (GR) horseweed (GR-MT) plants in a wheat—fallow field in McCone County, MT. Known GR (GR-NE) and glyphosate-susceptible (GS-NE) horseweed accessions from Lincoln, NE, were included for comparison in dose—resp ...

34. Effects of Field Inoculation with VAM and Bacteria Consortia on Root Growth and Nutrients Uptake in Common Wheat

Author:
Cristian Dal Cortivo; Giuseppe Barion; Manuel Ferrari; Giovanna Visioli; Lucia Dramis; Anna Panozzo; Teofilo Vamerali
Source:
Sustainability 2018 v.10 no.9 pp. -
ISSN:
2071-1050
Subject:
Azotobacter vinelandii; Rhizophagus irregularis; Triticum aestivum; adverse effects; bacteria; biofertilizers; branching; dose response; ecosystem services; fertilizer application; flowering; foliar spraying; grain yield; models; mycorrhizal fungi; nitrogen; nitrogen fertilizers; nutrient uptake; nutrients; protein content; root growth; root tips; seed inoculation; shoots; silt loam soils; sowing; straw; tillering; vesicular arbuscular mycorrhizae; wheat; zinc; Italy
Abstract:
... This study investigated the effects of a commercial biofertilizer containing the mycorrhizal fungus Rhizophagus irregularis and the diazotrophic N-fixing bacterium Azotobacter vinelandii on root and shoot growth, yield, and nutrient uptake in common wheat (Triticum aestivum L.) in order to improve the sustainable cultivation of this widespread crop. The trials were carried out in controlled condit ...
DOI:
10.3390/su10093286

35. Impacts of tillage and herbicide mixture on weed interference, agronomic productivity and profitability of a maize – Wheat system in the North-western Indo-Gangetic Plains

Author:
V.S. Susha; T.K. Das; C.P. Nath; Rakesh Pandey; Sangeeta Paul; Sourav Ghosh
Source:
Field crops research 2018 v.219 pp. 180-191
ISSN:
0378-4290
Subject:
Arachis hypogaea; Cyperus rotundus; Glycine max; Triticum aestivum; Zea mays; annual weeds; barley; conventional tillage; corn; costs and returns; crop residues; cropping systems; crops; dose response; grain yield; herbicide mixtures; imazethapyr; irrigated conditions; no-tillage; oats; peanuts; pendimethalin; preemergent weed control; profitability; soil; soybeans; subtropics; tropics; wheat; India; Indo-Gangetic Plain
Abstract:
... Weeds comprising of annual monocotyledons, dicotyledons and perennial Cyperus rotundus L. (hereafter referred to as nutsedge) are important constraints in maize-wheat production system in India. They can cause yield losses of 25–30% in maize and 10–25% in wheat. Recently, continuous use of selective herbicides has led to an increase of nutsedge and other annual weeds in maize. There is need for a ...
DOI:
10.1016/j.fcr.2018.02.003

36. Leachate composition and toxicity assessment: an integrated approach correlating physicochemical parameters and toxicity of leachates from MSW landfill in Delhi

Author:
Anshu Gupta; R. Paulraj
Source:
Environmental technology 2017 v.38 no.13-14 pp. 1599-1605
ISSN:
1479-487X
Subject:
Triticum aestivum; biochemical oxygen demand; chemical analysis; chemical oxygen demand; chromium; copper; dose response; electrical conductivity; environmental technology; groundwater; heavy metals; landfill leachates; landfills; lead; municipal solid waste; nickel; organic matter; pH; pollutants; risk; statistical analysis; toxicity; toxicity testing; wheat; India
Abstract:
... Landfills are considered the most widely practiced method for disposal of municipal solid waste (MSW) and 95% of the total MSW collected worldwide is disposed of in landfills. Leachate produced from MSW landfills may contain a number of pollutants and pose a potential environmental risk for surface as well as ground water. In the present study, chemical analysis and toxicity assessment of landfill ...
DOI:
10.1080/09593330.2016.1238515

37. Programmed cell death evidence in wheat (Triticum aestivum L.) roots induced by aluminum oxide (Al2O3) nanoparticles

Author:
Fatma Yanık; Özlem Aytürk; Filiz Vardar
Source:
Caryologia 2017 v.70 no.2 pp. 112-119
ISSN:
2165-5391
Subject:
Triticum aestivum; abiotic stress; aluminum oxide; apoptosis; caspase-3; chromosome aberrations; deformation; dose response; metaphase; microtubules; mitosis; nanoparticles; plasma membrane; roots; stickiness; wheat
Abstract:
... Nanoparticles have been recognized as an abiotic stress factor in the last decade. Although they are extensively used in nanotechnology, the possible effects of nanoparticles on plants are still unclear. Therefore the aim of the present study was to determine the dose dependent effects of 13 nm-sized aluminum oxide nanoparticles (Al ₂O ₃ NPs) on wheat roots correlating with programmed cell death r ...
DOI:
10.1080/00087114.2017.1286126

38. Toxic effects of the fungicide tebuconazole on the root system of fusarium-infected wheat plants

Author:
Ekaterina Shishatskaya; Natalia Menzyanova; Natalia Zhila; Svetlana Prudnikova; Tatiana Volova; Sabu Thomas
Source:
Plant physiology and biochemistry 2018 v.132 pp. 400-407
ISSN:
0981-9428
Subject:
Fusarium graminearum; Triticum aestivum; developmental stages; dose response; ecosystems; fungal diseases of plants; homeostasis; lipids; malondialdehyde; peroxidation; plant growth; plant pathogenic fungi; proline; proteins; root systems; root tips; soil; tebuconazole; toxicity; triazoles; wheat
Abstract:
... The study investigates toxic effects of the fungicide tebuconazole (TEB) on Fusarium-infected wheat (Triticum aestivum) plants based on the morphological characteristics of root apices and changes in the integrated parameters of redox homeostasis, including the contents of free proline and products of peroxidation of proteins (carbonylated proteins, CP) and lipids (malondialdehyde, MDA) in roots. ...
DOI:
10.1016/j.plaphy.2018.09.025

39. Enhanced efficiency nitrogen fertilizer effect on camelina production under conventional and conservation tillage practices

Author:
Reza Keshavarz Afshar; Yesuf Assen Mohammed; Chengci Chen
Source:
Industrial crops and products 2016 v.94 pp. 783-789
ISSN:
0926-6690
Subject:
Camelina sativa; Triticum aestivum; arid lands; biofuels; biomass; computed tomography; conventional tillage; cropping systems; dose response; dryland farming; feedstocks; fertilizer application; field experimentation; grain protein; grain yield; lipid content; mineral soils; nitrification inhibitors; nitrogen; nitrogen fertilizers; no-tillage; oils; seeds; urea; urease; wheat; Great Plains region; Montana
Abstract:
... Camelina (Camelina sativa) is a promising biofuel feedstock to fill the fallow period in dryland wheat (Triticum aestivum) −fallow cropping system of the U.S Northern Great Plains (NGP). Responses of camelina to tillage system (conventional tillage [CT] and no-till [NT]), nitrogen (N) rate (0, 45, 90kgha−1), and nitrogen source (urea and an enhanced efficiency nitrogen fertilizer [EENF] containing ...
DOI:
10.1016/j.indcrop.2016.09.043
CHORUS:
10.1016/j.indcrop.2016.09.043
Chorus Open Access:
10.1016/j.indcrop.2016.09.043

40. Foliar application of sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, can protect seedlings against heat stress in wheat (Triticum aestivum L.)

Author:
Min YANG; Bao-ping QIN; Xue-li MA; Ping WANG; Mei-ling LI; Lu-lu CHEN; Lei-tai CHEN; Ai-qing SUN; Zhen-lin WANG; Yan-ping YIN
Source:
Journal of integrative agriculture 2016 v.15 no.12 pp. 2745-2758
ISSN:
2095-3119
Subject:
dose response; heat tolerance; sugars; catalase; ascorbate peroxidase; hydrogen peroxide; malondialdehyde; plant growth substances; seedlings; foliar application; superoxide dismutase; heat stress; gene expression; wheat; Triticum aestivum; hydrogen sulfide; temperature; enzyme activity; sugar content
Abstract:
... Temperature extremes represent an important limiting factor to plant growth and productivity. Low concentration of hydrogen sulfide (H2S) has been proven to function in physiological responses to various stresses. The present study evaluated the effect of foliar application of wheat seedlings with a H2S donor, sodium hydrosulfide (NaHS), on the response to acute heat stress. The results showed tha ...
DOI:
10.1016/S2095-3119(16)61358-8

41. Hydrogen Sulfide Promotes Wheat Grain Germination Under Cadmium Stress

Author:
Zhong-Qin Huang; Shao-Can Ye; Lan-Ying Hu; Kang-Di Hu; Hong Yan; Wan-Jie Li; Hao Jiao; Hua Zhang
Source:
Proceedings of the National Academy of Sciences, India, Section B: biological sciences 2016 v.86 no.4 pp. 887-895
ISSN:
0369-8211
Subject:
peroxidase; plant development; germination; dose response; catalase; free amino acids; hydrogen peroxide; malondialdehyde; linoleate 13S-lipoxygenase; wheat; cadmium; superoxide anion; Triticum aestivum; sodium; abiotic stress; amylases; plasma membrane; hydrogen sulfide; esterases
Abstract:
... Hydrogen sulfide (H₂S) has proved to be a multifunctional signaling molecule involved in plant development and response to abiotic stresses. In the present study, the effects of H₂S donor, sodium hydrosulfide (NaHS) on the germination of wheat (Triticum aestivum L.) grains under cadmium stress was investigated. With the increase in Cd concentration, the germination percentage of wheat grains decre ...
DOI:
10.1007/s40011-015-0554-5

42. Mechanisms of Resistance to Pyroxsulam and ACCase Inhibitors in Japanese Foxtail (Alopecurus japonicus)

Author:
Feng Yujuan; Gao Yuan; Zhang Yong; Dong Liyao; Li Jun
Source:
Weed science 2016 v.64 no.4 pp. 695-704
ISSN:
0043-1745
Subject:
Alopecurus; Brassica napus; Brassica rapa subsp. oleifera; Triticum aestivum; acetolactate synthase; acetyl-CoA carboxylase; annuals; cross resistance; dose response; genes; grass weeds; imidazolinone herbicides; in vitro studies; malathion; photosystem II; piperonyl butoxide; resistance mechanisms; sequence analysis; sulfonylureas; tetraploidy; wheat; China
Abstract:
... Japanese foxtail is a predominant tetraploid grass weed in wheat and oilseed rape fields in eastern China. In China, pyroxsulam is mainly used to manage annual grass weeds, especially those resistant to acetyl coenzyme A carboxylase (ACCase)-inhibiting herbicides. Using dose–response studies, a pyroxsulam-resistant population, ACTC-1, was identified with a resistance index value of 58. Additionall ...
DOI:
10.1614/WS-D-16-00042.1

43. Wheat chronic exposure to TiO2-nanoparticles: Cyto- and genotoxic approach

Author:
Sónia Silva; Sandra C. Craveiro; Helena Oliveira; António J. Calado; Ricardo J.B. Pinto; Artur M.S. Silva; Conceição Santos
Source:
Plant physiology and biochemistry 2017 v.121 pp. 89-98
ISSN:
0981-9428
Subject:
DNA; DNA damage; Triticum aestivum; antioxidant activity; cell cycle; chronic exposure; dose response; flow cytometry; germination; leaves; lipid peroxidation; membrane permeability; mutagens; nanoparticles; oxidative stress; phytotoxicity; ploidy; risk; root tips; seedlings; shoots; titanium dioxide; wheat
Abstract:
... This study investigates the phytotoxicity of chronic exposure (up to 20 d) of different TiO2 nanoparticles (TiO2-NP) concentrations (5, 50, 150 mg L−1) in Triticum aestivum. Germination was not affected by TiO2-NP exposure and seedling shoot length (3 d) was enhanced. Contrarily, plants’ shoot growth (20 d) was impaired. Effects on membrane permeability and total antioxidant capacity in TiO2-NP ch ...
DOI:
10.1016/j.plaphy.2017.10.013

44. Characterization and expression pattern analysis of microRNAs in wheat under drought stress

Author:
Y. -Y. Zhao; C. -J. Guo; X. -J. Li; W. -W. Duan; C. -Y. Ma; H. -M. Chan; Y. -L. Wen; W. -J. Lu; K. Xiao
Source:
Biologia plantarum 2015 v.59 no.1 pp. 37-46
ISSN:
0006-3134
Subject:
Triticum aestivum; databases; dose response; drought; genes; microRNA; plant growth; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; signal transduction; transcription (genetics); water stress; wheat
Abstract:
... Plant microRNAs (miRNAs) play important roles in regulating plant growth, development, and responses to abiotic stresses. In this study, 38 miRNAs (TaMIRs) from wheat (Triticum aestivum L.), 36 from the miRBase database, and two from our previous work were characterized and subjected to an expression pattern analysis under normal conditions and a drought stress. A semiquantitative reverse transcri ...
DOI:
10.1007/s10535-014-0463-0

45. Commercial Lawsonia inermis L. dried leaves and processed powder: Phytochemical composition, antioxidant, antibacterial, and allelopathic activities

Author:
Karima Dhaouadi; Walid Meliti; Sana Dallali; Manel Belkhir; Saloua Ouerghemmi; Houcine Sebei; Sami Fattouch
Source:
Industrial crops and products 2015 v.77 pp. 544-552
ISSN:
0926-6690
Subject:
Bacillus subtilis; Lawsonia inermis; Phalaris canariensis; Syzygium aromaticum; Triticum aestivum; allelopathy; antibacterial properties; antioxidant activity; antioxidants; bacteria; commercialization; dose response; electrospray ionization mass spectrometry; eugenol; functional properties; gallic acid; herbicides; leaves; luteolin; phytotoxicity; reversed-phase high performance liquid chromatography; root growth; seed germination; wheat
Abstract:
... Henna (Lawsonia inermis L.) is a plant used over the world for centuries for its medical and cosmetic virtues. The present work aimed to determine the phytochemical composition, antioxidant, antibacterial activities and phytotoxic potentials of commonly commercialized henna’s dried leaves (HL) and processed powder (HP). The chromatographic method, using reversed-phase high-performance liquid chrom ...
DOI:
10.1016/j.indcrop.2015.09.037

46. Effect of nickel on growth and biochemical characteristics of wheat (Triticum aestivum L.) seedlings

Author:
Kadiriye Uruç Parlak
Source:
Netherlands journal of agricultural science 2016 v.76 pp. 1-5
ISSN:
1573-5214
Subject:
Triticum aestivum; cell membranes; chlorophyll; dose response; enzyme activity; hydroponics; lipid peroxidation; nickel; nutrient solutions; proline; seedlings; superoxide dismutase; toxicity; wheat
Abstract:
... A hydroponic experiment was carried out under controlled conditions to investigate the impact of different levels of nickel (Ni) in the nutrient solution on growth and biochemical characteristics of wheat (Triticum aestivum L.) seedlings, including membrane lipid peroxidation (LPO), proline accumulation and superoxide dismutase (SOD). The Ni levels investigated were 0, 25 and 50μg per litre. A sta ...
DOI:
10.1016/j.njas.2012.07.001

47. Investigation of biochemical and competitive effects of cover crops on crops and weeds

Author:
Victor Rueda-Ayala; Ortrud Jaeck; Roland Gerhards
Source:
Crop protection 2015 v.71 pp. 79-87
ISSN:
0261-2194
Subject:
Amaranthus retroflexus; Avena strigosa; Cannabis sativa; Festuca rubra; Hordeum vulgare; Lactuca sativa; Setaria viridis; Triticum aestivum; Zea mays; active ingredients; biomass; corn; cover crops; crop residues; dose response; laboratory experimentation; mechanism of action; mulching; plant extracts; root growth; weed control; weeds
Abstract:
... The weed suppressing ability and growth of 17 cover crops and undersown crops was evaluated in eleven pot and laboratory experiments. Weed suppression was greater using mulched cover crops than with undersown crops. Mulched cover crops had no effects on biomass of Hordeum vulgare and undersown crops decreased Triticum aestivum biomass in the pot experiments. Biochemical effects of various concentr ...
DOI:
10.1016/j.cropro.2015.01.023

48. Pure anatase and rutile + anatase nanoparticles differently affect wheat seedlings

Author:
Sónia Silva; Helena Oliveira; Sandra C. Craveiro; António J. Calado; Conceição Santos
Source:
Chemosphere 2016 v.151 pp. 68-75
ISSN:
0045-6535
Subject:
DNA damage; Triticum aestivum; adverse effects; cell cycle checkpoints; cytotoxicity; dose response; energy-dispersive X-ray analysis; genotoxicity; germination; membrane permeability; mitosis; mutation; nanoparticles; ploidy; roots; seedlings; seeds; shoots; wheat
Abstract:
... TiO2-nanoparticles (TiO2-NPs) are increasingly released to the environment. The present work investigates the cytotoxicity, genotoxicity and uptake of TiO2-NPs in Triticum aestivum. Wheat seeds were exposed to 5–150 mg L−1 of anatase (ana) or rutile + anatase (rut + ana) TiO2-NPs for 5 d. After exposure, germination and growth rates were determined. Cytotoxic effects were evaluated by changes in t ...
DOI:
10.1016/j.chemosphere.2016.02.047

49. Secondary Metabolites and Bioactivities of Thymbra spicata var. spicata in Amanos Mountains

Author:
Zeynep Ulukanli; Fuat Bozok; Menderes Cenet; Hüseyin Ince; Salih Cercis Demirci; Gokhan Sezer
Source:
Journal of essential oil-bearing plants 2016 v.19 no.7 pp. 1754-1761
ISSN:
0976-5026
Subject:
Bacillus subtilis; Candida albicans; Candida parapsilosis; Enterobacter hormaechei; Escherichia coli; Klebsiella pneumoniae; Lactuca sativa; Lepidium sativum; Portulaca oleracea; Thymbra spicata; Triticum aestivum; Zea mays; aerial parts; biopesticides; carvacrol; dose response; essential oils; gamma-terpinene; gas chromatography-mass spectrometry; mountains; oils; p-cymene; phytotoxicity; secondary metabolites
Abstract:
... The essential oil of the aerial parts of Thymbra spicata var. spicata in Amanos Mountains was hydrodistillated and analyzed with GC-MS. Of the 15 compounds, the followings were the main constituents; carvacrol (57.95 %), γ-terpinene (18.95 %), p-cymene (9.43 %), and 1-phellandrene (3.26 %). A dose-dependent phytotoxic effect of the oil was found on Triticum aestivum , Zea mays , Lactuca sativa , L ...
DOI:
10.1080/0972060X.2016.1209132

50. Sorption parameters as a predictor of arsenic phytotoxicity in Australian soils

Author:
Mohammed Kader; Dane T. Lamb; Mallavarapu Megharaj; Ravi Naidu
Source:
Geoderma 2016 v.265 pp. 103-110
ISSN:
0016-7061
Subject:
Cucumis sativus; Triticum aestivum; arsenic; bioaccumulation; biomass; carotenoids; chlorophyll; cucumbers; dose response; ecotoxicology; median effective concentration; phytotoxicity; root growth; shoots; soil pH; sorption; wheat
Abstract:
... Arsenic (As) is a mobile and ecotoxic metalloid that is of serious concern to the environment. In this study, As phytotoxicity was studied using a dose–response approach for seven contrasting soils considering 3 end-points (shoot biomass, root elongation and chlorophyll content) and focusing on predictors of toxicity. Root elongation study was carried out for 4days using both Cucumis sativus L. (c ...
DOI:
10.1016/j.geoderma.2015.11.019

51. Sulfur dioxide promotes germination and plays an antioxidant role in cadmium-stressed wheat seeds

Author:
Kang-Di Hu; Gui-Sheng Bai; Wan-Jie Li; Hong Yan; Lan-Ying Hu; Yan-Hong Li; Hua Zhang
Source:
Plant growth regulation 2015 v.75 no.1 pp. 271-280
ISSN:
0167-6903
Subject:
sulfur dioxide; ascorbate peroxidase; seedlings; wheat; dose response; animals; malondialdehyde; reducing sugars; hydrogen peroxide; cadmium; air; Triticum aestivum; plasma membrane; superoxide anion; hydrogen sulfide; peroxidase; seeds; linoleate 13S-lipoxygenase; superoxide dismutase; pollutants; toxicity; seed germination; catalase; esterases
Abstract:
... Sulfur dioxide (SO₂) is a widespread air pollutant and is toxic to both plants and animals. Here, we studied the physiological role of SO₂on wheat (Triticum aestivum L.) seed germination under cadmium (Cd) stress. Pretreatment with the SO₂donor, Na₂SO₃/NaHSO₃(3:1), could alleviate the inhibitory effect of Cd (CdCl₂) stress on germination in wheat in a dose-dependent manner, with the optimal concen ...
DOI:
10.1007/s10725-014-9951-7

52. Molecular Mechanism of Mesosulfuron-Methyl Resistance in Multiply-Resistant American Sloughgrass (Beckmannia syzigachne)

Author:
Li Lingxu; Liu Weitang; Chi Yucheng; Guo Wenlei; Luo Xiaoyong; Wang Jinxin
Source:
Weed science 2015 v.63 no.4 pp. 781-787
ISSN:
0043-1745
Subject:
Beckmannia; Oryza sativa; Triticum aestivum; Zea mays; corn; cross resistance; dose response; grass weeds; isoproturon; molecular cloning; rice; winter wheat; China
Abstract:
... American sloughgrass is a troublesome grass weed in winter wheat fields after rice in China. Mesosulfuron-methyl failed to control American sloughgrass in Danyang County in 2012. The purpose of this research was to determine the resistance level to mesosulfuron and other herbicides in American sloughgrass and to identify the molecular basis of resistance. Dose–response experiments indicated that t ...
DOI:
10.1614/WS-D-15-00026.1

53. Toxic Effects of Aluminum Oxide (Al2O3) Nanoparticles on Root Growth and Development in Triticum aestivum

Author:
Fatma Yanık; Filiz Vardar
Source:
Water, air, and soil pollution 2015 v.226 no.9 pp. 296
ISSN:
0049-6979
Subject:
DNA fragmentation; Triticum aestivum; agarose; aluminum oxide; apoptosis; callose; cortex; direct contact; dose response; gels; growth and development; industry; lignin; nanoparticles; oxidative stress; peroxidase; phytotoxicity; pollution; protein content; root growth; roots; stress response; wheat
Abstract:
... The development of nanotechnology has increased the amount of nanoparticles in the environment inducing pollution. In view of increasing amounts, their toxicity assessment becomes important. Aluminum oxide nanoparticles (Al₂O₃ NPs) have a wide range of applications in industry. The present study aims to reveal the time-dependent (24, 48, 72, 96 h) and dose-dependent (0, 5, 25, 50 mg/ml) effects of ...
DOI:
10.1007/s11270-015-2566-4

54. Components from wheat roots modify the bioactivity of ZnO and CuO nanoparticles in a soil bacterium

Author:
Nicole Martineau; Joan E. McLean; Christian O. Dimkpa; David W. Britt; Anne J. Anderson
Source:
Environmental pollution 2014 v.187 no. pp. 65-72
ISSN:
0269-7491
Subject:
Pseudomonas putida; Triticum aestivum; atomic force microscopy; bioactive properties; biosensors; cupric oxide; dose response; image analysis; ions; metabolism; metabolites; nanoparticles; roots; soil bacteria; wheat; zinc; zinc oxide
Abstract:
... ZnO and CuO nanoparticles (NPs) have widespread commercial uses and their impact on agricultural systems is unresolved. This study examined whether the metabolites washed from wheat (Triticum aestivum L.) roots modulated the metabolic response to the NPs of a biosensor generated in the root colonizer, Pseudomonas putida KT2440. The root wash components boosted light output of the biosensor consist ...
DOI:
10.1016/j.envpol.2013.12.022
CHORUS:
10.1016/j.envpol.2013.12.022

55. Physical localization of a novel blue-grained gene derived from Thinopyrum bessarabicum

Author:
Yuefeng Shen; Jian Shen; Dawadondup; Lifang Zhuang; Yanzhi Wang; Jing Pu; Yigao Feng; Chenggen Chu; Xiue Wang; Zengjun Qi
Source:
Molecular breeding 2013 v.31 no.1 pp. 195-204
ISSN:
1380-3743
Subject:
Thinopyrum bessarabicum; Triticum aestivum; dose response; fluorescence in situ hybridization; food coloring; foods; genes; genetic markers; introgression; loci; nutritive value; wheat
Abstract:
... Blue wheat grain contains different groups of pigments that can be used for making specialty foods or as food colorants. Thinopyrum bessarabicum, a wild relative of wheat, carries a blue-grained gene on chromosome 4J. In this study, we analyzed the mitotic chromosomes of 159 F7 lines derived from the cross between Triticum aestivum cv. Chinese Spring (CS) and a CS–Th. bessarabicum amphiploid by us ...
DOI:
10.1007/s11032-012-9783-y

56. Phytotoxicity of Major Constituents of the Volatile Oil from Leaves of Artemisia scoparia Waldst. & Kit.

Author:
Harminder Pal Singh; Shalinder Kaur; Sunil Mittal; Daizy R. Batish; Ravinder K. Kohli
Source:
Zeitschrift für Naturforschung 2014 v.63 no.9-10 pp. 663-666
ISSN:
0939-5075
Subject:
Artemisia scoparia; Avena sativa; Triticum aestivum; alcohols; chlorophyll; dose response; essential oils; esters; germination; ketones; leaves; limonene; myrcene; oils; p-cymene; phytotoxicity; seedling growth; sesquiterpenoids; weeds
Abstract:
... The phytotoxicity of the three major monoterpene constituents of the essential oil from leaves of Artemisia scoparia Waldst. & Kit. (redstem wormwood) was investigated. GC/GCMS analysis revealed that the essential oil (yield 0.84%) is a complex mixture containing 19 monoterpenes, 7 sesquiterpenes and 15 other compounds - aliphatic alcohols, ketones, aromatic hydrocarbons and esters. The three majo ...
DOI:
10.1515/znc-2008-9-1009

57. Use of Image Analysis to Assess Color Response on Plants Caused by Herbicide Application

Author:
Ali Asif; Streibig Jens C.; Duus Joachim; Andreasen Christian
Source:
Weed technology 2013 v.27 no.3 pp. 604-611
ISSN:
0890-037X
Subject:
Festuca rubra subsp. rubra; Hordeum vulgare; Triticum aestivum; Vulpia bromoides; barley; biomass; canopy; color; diflufenican; diquat; dose response; fluazifop-P; glyphosate; image analysis; leaves; models; mortality; nondestructive methods; pesticide application; plant response; soil; weeds; winter wheat
Abstract:
... In herbicide-selectivity experiments, response can be measured by visual inspection, stand counts, plant mortality, and biomass. Some response types are relative to nontreated control. We developed a nondestructive method by analyzing digital color images to quantify color changes in leaves caused by herbicides. The range of color components of green and nongreen parts of the plants and soil in Hu ...
DOI:
10.1614/WT-D-12-00136.1

58. The Usefulness of Fungicide Mixtures and Alternation for Delaying the Selection for Resistance in Populations of Mycosphaerella graminicola on Winter Wheat: A Modeling Analysis

Author:
Hobbelen P. H. F.; Paveley N. D.; Oliver R. P.; van den Bosch F.
Source:
Phytopathology 2013 v.103 no.7 pp. 690-707
ISSN:
0031-949X
Subject:
Mycosphaerella graminicola; Triticum aestivum; crops; dose response; fungicide resistance; growing season; mechanism of action; models; pathogens; pyraclostrobin; quinine; resistance management; spore dispersal; winter wheat
Abstract:
... A fungicide resistance model (reported and tested previously) was amended to describe the development of resistance in Mycosphaerella graminicola populations in winter wheat (Triticum aestivum) crops in two sets of fields, connected by spore dispersal. The model was used to evaluate the usefulness of concurrent, alternating, or mixture use of two high-resistance-risk fungicides as resistance manag ...
DOI:
10.1094/PHYTO-06-12-0142-R

59. Effect of lead stress on mineral content and growth of wheat (Triticum aestivum) and spinach (Spinacia oleracea) seedlings

Author:
Mostafa Lamhamdi; Ouiam El Galiou; Ahmed Bakrim; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; Ahmed Aarab; René Lafont
Source:
Saudi Journal of Biological Sciences 2013 v.20 pp. 29-36
ISSN:
1319-562X
Subject:
Spinacia oleracea; Triticum aestivum; calcium; chlorophyll; copper; dose response; fertilizers; heavy metals; hydroponics; ions; iron; lead; lead nitrate; magnesium; manganese; metabolism; mineral content; nutrient deficiencies; nutrient uptake; nutrients; polluted soils; potassium; proline; proteins; rural areas; seedlings; sodium; spinach; wheat; zinc
Abstract:
... Lead (Pb) is the most common heavy metal contaminant in the environment. Pb is not an essential element for plants, but they absorb it when it is present in their environment, especially in rural areas when the soil is polluted by automotive exhaust and in fields contaminated with fertilizers containing heavy metal impurities. To investigate lead effects on nutrient uptake and metabolism, two plan ...
DOI:
10.1016/j.sjbs.2012.09.001
PubMed:
23961216
PubMed Central:
PMC3730938

60. Japanese Foxtail (Alopecurus japonicus) Resistance to Fenoxaprop and Pinoxaden in China

Author:
Mohamed Ibrahim A.; Li Runzhi; You Zhenguo; Li Zhaohu
Source:
Weed science 2012 v.60 no.2 pp. 167-171
ISSN:
0043-1745
Subject:
Alopecurus; Triticum aestivum; at-risk population; cross resistance; dose response; evolution; fenoxaprop; grass weeds; site-directed mutagenesis; wheat; China
Abstract:
... Japanese foxtail is one of the most common and competitive annual grass weeds of wheat in China. Whole-plant dose-response experiments were conducted with fenoxaprop and pinoxaden to confirm and characterize resistant and susceptible Japanese foxtail populations and to elucidate the basis of resistance to these herbicides. The resistant Japanese foxtail population was 49-fold resistant to fenoxapr ...
DOI:
10.1614/WS-D-11-00111.1

61. Silver Nanoparticles Disrupt Wheat (Triticum aestivum L.) Growth in a Sand Matrix

Author:
Dimkpa Christian O.; McLean Joan E.; Martineau Nicole; Britt David W.; Haverkamp Richard; Anderson Anne J.
Source:
Environmental Science & Technology 2013 v.47 no.2 pp. 1082-1090
ISSN:
1520-5851
Subject:
Triticum aestivum; branching; dose response; electron microscopy; food crops; genes; glutathione; hydroponics; ions; metabolism; metallothionein; nanosilver; oxidative stress; phytomass; phytotoxicity; plant growth; pollution; roots; sand; shoots; silver; wheat
Abstract:
... Hydroponic plant growth studies indicate that silver nanoparticles (Ag NPs) are phytotoxic. In this work, the phytotoxicity of commercial Ag NPs (10 nm) was evaluated in a sand growth matrix. Both NPs and soluble Ag were recovered from water extracts of the sand after growth of plants challenged with the commercial product; the surface charge of the Ag NPs in this extract was slightly reduced comp ...
DOI:
10.1021/es302973y
CHORUS:
10.1021/es302973y

62. Bacillus pumilus SG2 chitinases induced and regulated by chitin, show inhibitory activity against Fusarium graminearum and Bipolaris sorokiniana

Author:
Shali, Abbas; Ghasemi, Seyedhadi; Ahmadian, Gholamreza; Ranjbar, Gholamali; Dehestani, Ali; Khalesi, Naeimeh; Motallebi, Ebrahim; Vahed, Majid
Source:
Phytoparasitica 2010 v.38 no.2 pp. 141-147
ISSN:
0334-2123
Subject:
cell growth; wheat; plant pathogenic fungi; mechanism of action; Fusarium graminearum; dose response; glucose; fungal diseases of plants; biological control agents; Triticum aestivum; antifungal properties; hyphae; disease control; pathogenicity; growth retardation; culture media; Bacillus pumilus; chitin; biological control; Bipolaris sorokiniana; salts; chitinase
DOI:
10.1007/s12600-009-0078-8

63. Effects of the nitric oxide donor sodium nitroprusside on antioxidant enzymes in wheat seedling roots under nickel stress

Author:
Wang, S. H.; Zhang, H.; Jiang, S. J.; Zhang, L.; He, Q. Y.; He, H. Q.
Source:
Russian journal of plant physiology 2010 v.57 no.6 pp. 833-839
ISSN:
1021-4437
Subject:
seedling growth; dose response; glutathione-disulfide reductase; catalase; ascorbate peroxidase; glutathione transferase; hydrogen peroxide; nitric oxide; roots; seedlings; superoxide dismutase; wheat; Triticum aestivum; nitroprusside; nickel; toxicity; peroxidase; protective effect
Abstract:
... The inhibitory effect of nickel on the growth of wheat (Triticum aestivum L.) seedlings and the alleviation of nickel toxicity by nitric oxide (NO) were investigated. Nickel (Ni) at 100 μM caused striking reduction in seedling growth and significant overproduction of MDA and H₂O₂ in the roots. Supplementation with NO donor sodium nitroprusside (SNP) could significantly reverse the inhibitory effec ...
DOI:
10.1134/S1021443710060129

64. Hydrogen sulfide alleviated chromium toxicity in wheat

Author:
Zhang, H.; Hu, L. -Y.; Li, P.; Hu, K. -D.; Jiang, C. -X.; Luo, J. -P.
Source:
Biologia plantarum 2010 v.54 no.4 pp. 743-747
ISSN:
0006-3134
Subject:
seed germination; peroxidase; dose response; seeds; catalase; ascorbate peroxidase; hydrogen peroxide; malondialdehyde; linoleate 13S-lipoxygenase; superoxide dismutase; wheat; Triticum aestivum; toxicity; chromium; hydrogen sulfide; esterases
Abstract:
... Effects of H₂S on seed germination under chromium (Cr) stress were investigated in wheat (Triticum aestivum L.). Under Cr stress, the percentage of germination of wheat seeds decreased, but this decrease could be alleviated by pretreatment with NaHS, an H₂S donor, in a dose-dependent manner. Furthermore, NaHS significantly enhanced the activities of amylase, esterase, superoxide dismutase, catalas ...
DOI:
10.1007/s10535-010-0133-9

65. Hydrogen sulfide promotes wheat seed germination under osmotic stress

Author:
Zhang, H.; Wang, M. J.; Hu, L. Y.; Wang, S. H.; Hu, K. D.; Bao, L. J.; Luo, J. P.
Source:
Russian journal of plant physiology 2010 v.57 no.4 pp. 532-539
ISSN:
1021-4437
Subject:
ascorbate peroxidase; wheat; protective effect; sulfites; dose response; malondialdehyde; sulfates; hydrogen peroxide; Triticum aestivum; sodium; hydrogen sulfide; peroxidase; metabolism; osmotic stress; seeds; linoleate 13S-lipoxygenase; superoxide dismutase; seed germination; catalase; esterases
Abstract:
... Effects of NaHS, H₂S donor, on germination and antioxidant metabolism in wheat (Triticum aestivum L.) seeds under osmotic stress were investigated. With the enhancement of osmotic stress, which was mimicked by PEG-6000, the seed germination dropped gradually. NaHS treatment could promote wheat seed germination against osmotic stress in a dose-dependent manner; while Na⁺ and other sulfur-containing ...
DOI:
10.1134/S1021443710040114

66. Lead phytotoxicity on wheat (Triticum aestivum L.) seed germination and seedlings growth

Author:
Mostafa Lamhamdi; Ahmed Bakrim; Ahmed Aarab; René Lafont; Fouad Sayah
Source:
Comptes rendus 2011 v.334 no.2 pp. 118-126
ISSN:
1631-0691
Subject:
Triticum aestivum; alpha-amylase; antioxidants; ascorbate peroxidase; catalase; correlation; dose response; esterases; glutathione transferase; humans; lead; lipid peroxidation; peroxidase; phytotoxicity; pollutants; proline; roots; seed germination; seedling growth; seedlings; seeds; superoxide dismutase; wheat
Abstract:
... Lead (Pb) is an environmental pollutant extremely toxic to plants and other living organisms including humans. To assess Pb phytotoxicity, experiments focusing on germination of wheat seeds were germinated in a solution containing Pb (NO₃)₂ (0.05; 0.1; 0.5; 1g/L) during 6 days. Lead accumulation in seedlings was positively correlated with the external concentrations, and negatively correlated with ...
DOI:
10.1016/j.crvi.2010.12.006

67. Tolerance of winter wheat (Triticum aestivum L.) to pre-emergence and post-emergence application of saflufenacil

Author:
Knezevic, Stevan Z.; Datta, Avishek; Scott, Jon; Charvat, Leo D.
Source:
Crop protection 2010 v.29 no.2 pp. 148-152
ISSN:
0261-2194
Subject:
Triticum aestivum; winter wheat; broadleaf weeds; herbicides; preemergent weed control; postemergent weed control; herbicide resistance; application rate; application timing; adjuvants; autumn; spring; phytotoxicity; dose response; plant damage; crop losses; crop yield; developmental stages; field experimentation; Nebraska
Abstract:
... Saflufenacil is a new herbicide being developed for pre-plant burndown for non-selective removal of broadleaf weeds and pre-emergence (PRE) broadleaf weed control in field crops, including maize, soybean, sorghum and wheat. As part of studying the potential use pattern of this herbicide, four field studies were conducted in 2006 and 2007 at Concord, northeast Nebraska, to determine winter wheat to ...
DOI:
10.1016/j.cropro.2009.08.017

68. Allelopathic effects of Hemistepta lyrata on the germination and growth of wheat, sorghum, cucumber, rape, and radish seeds

Author:
GAO, XINGXIANG; LI, MEI; GAO, ZONGJUN; LI, CHANGSONG; SUN, ZUOWEN
Source:
Weed biology and management 2009 v.9 no.3 pp. 243-249
ISSN:
1444-6162
Subject:
Asteraceae; weed biology; plant extracts; chemical constituents of plants; allelochemicals; allelopathy; seed germination; seedling growth; root growth; Triticum aestivum; wheat; Sorghum bicolor; grain sorghum; Cucumis sativus; cucumbers; Brassica napus var. napus; Raphanus sativus; radishes; dose response; growth retardation; hypocotyls; malondialdehyde; quantitative analysis; rapeseed
Abstract:
... The allelopathic effects of a water extract from Hemistepta lyrata were tested on the seeds of selected crops in Petri dishes. The results showed that the extract strongly inhibited the germination and seedling growth of wheat (Triticum aestivum), rape (Brassica campestris), and radish (Raphanus sativus), but only slightly inhibited those of sorghum (Sorghum vulgare) and cucumber (Cucumis sativus) ...
DOI:
10.1111/j.1445-6664.2009.00345.x

69. Arsenate toxicity for wheat and lettuce in six Chinese soils with different properties

Author:
Cao, Qing; Hu, Qin-Hong; Baisch, Cristoph; Khan, Sardar; Zhu, Yong-Guan
Source:
Environmental toxicology and chemistry 2009 v.28 no.9 pp. 1946-1950
ISSN:
0730-7268
Subject:
interspecific variation; dose response; soil pollution; phytotoxicity; indicator species; extraction; Lactuca sativa; arsenic; iron; wheat; arsenates; Triticum aestivum; lettuce; ammonium oxalate; environmental indicators; roots; environmental monitoring; China
Abstract:
... To assess soil arsenic (As, in the form of arsenate) toxicity to plants, 6-d root elongation tests on wheat (Triticum aestivum L.) and lettuce (Lactuca sativa) were conducted in six Chinese soils freshly spiked with As. Plants were treated with 7 or 10 levels of As to establish concentration-effect curves. Median effective concentration and 10% effective concentration values were derived with regr ...
DOI:
10.1897/08-660.1
PubMed:
19379017

70. Changes in soil-plant P under heterogeneous P supply influence C allocation between the shoot and roots

Author:
Ma, Qifu; Rengel, Zed; Palta, Jairo
Source:
Functional plant biology 2009 v.36 no.9 pp. 826-831
ISSN:
1445-4408
Subject:
Triticum aestivum; wheat; shoots; roots; nutrient requirements; phosphorus; nutrient deficiencies; soil-plant interactions; nutrient uptake; nutrient availability; carbon; source-sink relationships; nutrient transport; signal transduction; measurement; canopy; radiolabeling; dose response; plant growth
Abstract:
... Wheat plants (Triticum aestivum L.) were subjected to varying phosphorus (P) supply and canopy ¹³CO₂ feeding to uncouple the plant and soil factors regulating carbon (C) allocation between the shoot and roots and in the P-enriched v. P-deficient soil zone. In a split-root system, transferring from 200/200μM P (high/high) to high/nil P or nil/nil P for 7 days was associated with 18-30% increase in ...
DOI:
10.1071/FP08259

71. Chemical changes in soil and plants after successive amendments of Tunisian MSW compost

Author:
Ayari, Fethia; Benzarti, Saoussen; Hamdi, Helmi; Jedidi, Naceur; Gharbi, Neji; Kossai, Ridha
Source:
Compost science & utilization 2010 v.18 no.3 pp. 145-151
ISSN:
1065-657X
Subject:
agricultural soils; heavy metals; lead; wheat; soil amendments; crop yield; dose response; nutrient uptake; cadmium; Triticum aestivum; quantitative analysis; copper; municipal solid waste; chromium; chemical composition; crop quality; clay soils; phytotoxicity; zinc; nickel; compost quality; Tunisia
DOI:
10.1080/1065657X.2010.10736950

72. Concentration-dependent effect of salicylic acid application on wheat seedling resistance to take-all fungus, Gaeumannomyces graminis var. tritici

Author:
Sari, Ehsan; Etebarian, Hassan Reza
Source:
Phytoparasitica 2009 v.37 no.1 pp. 67-76
ISSN:
0334-2123
Subject:
chemical concentration; dose response; signs and symptoms (plants); fungal diseases of plants; seedlings; wheat; disease control; peroxidases; pathogenicity; Triticum aestivum; salicylic acid; disease resistance; cell wall components; induced resistance; Gaeumannomyces graminis var. tritici; enzyme activity; isozymes; roots
DOI:
10.1007/s12600-008-0005-4

73. Significance of Nickel Supply for Growth and Chlorophyll Content of Wheat Supplied with Urea or Ammonium Nitrate

Author:
Gheibi, M.N.; Malakouti, M.J.; Kholdebarin, B.; Ghanati, F.; Teimouri, S.; Sayadi, R.
Source:
Journal of plant nutrition 2009 v.32 no.7-9 pp. 1440-1450
ISSN:
0190-4167
Subject:
Triticum aestivum; wheat; plant nutrition; nickel; nutrient requirements; urea; ammonium nitrate; application rate; nitrogen; nutrient availability; roots; shoots; plant growth; leaves; chemical constituents of plants; chlorophyll; quantitative analysis; dry matter accumulation; dose response; plant micronutrients; growing media
Abstract:
... Nickel (Ni) is an essential element for activation of urease in higher plants. The effects of Ni as an essential micronutrient on growth and chlorophyll content of wheat plants grew in nutrient solutions supplied either with ammonium nitrate or urea as two different nitrogen (N) sources were investigated. Plants were allowed to grow for six weeks, then leaf chlorophyll content, shoot and root fres ...

74. Modeling the toxicity of copper and zinc salts to wheat in 14 soils

Author:
St. John Warne, M.; Heemsbergen, D.; Stevens, D.; McLaughlin, M.; Cozens, G.; Whatmuff, M.; Broos, K.; Barry, G.; Bell, M.; Nash, D.
Source:
Environmental toxicology and chemistry 2008 v.27 no.4 pp. 786-792
ISSN:
0730-7268
Subject:
environmental models; salt tolerance; agricultural soils; plant growth; soil pollution; salts; copper; zinc; phytotoxicity; dose response; simulation models; soil physical properties; Triticum aestivum; electrical conductivity; soil pH; Australia
DOI:
10.1897/07-294.1
PubMed:
18333681

75. Rapid production of wheat cell suspension cultures directly from immature embryos

Author:
Biesaga-Kościelniak, Jolanta; Kościelniak, Janusz; Filek, Maria; Janeczko, Anna
Source:
Plant cell, tissue, and organ culture 2008 v.94 no.2 pp. 139-147
ISSN:
0167-6857
Subject:
cell growth; micropropagation; cell differentiation; 2,4-D; callus; dose response; explants; Triticum aestivum; in vitro regeneration; cultivars; quantitative analysis; morphogenesis; winter wheat; culture media; 1-aminocyclopropane-1-carboxylic acid; biosynthesis; embryo (plant); rapid methods; photosystem II; genetic variation; cell suspension culture; Poland
Abstract:
... The aim of this study was to produce suspension cultures of winter wheat directly from immature embryos bypassing the callus stage, and to determine their capacity for growth and regeneration in comparison to suspension cultures produced from callus. The study was carried out using Polish winter wheat varieties: 'Grana' and 'Rosa'. Immature embryos were isolated, homogenized and transferred direct ...
DOI:
10.1007/s11240-008-9397-6

76. Regulation of resistance and susceptibility in wheat-powdery mildew pathosystem with exogenous cytokinins

Author:
Babosha, Alexander V.
Source:
Journal of plant physiology 2009 v.166 no.17 pp. 1892-1903
ISSN:
0176-1617
Subject:
mathematical models; dose response; host-pathogen relationships; seedlings; zeatin; wheat; powdery mildew; Blumeria graminis f. sp. tritici; Triticum aestivum; disease resistance; plant pathogenic fungi; nutrient solutions; pathogenesis; cytokinins; culture media
Abstract:
... Dose-response relationship between resistance of wheat seedlings (Triticum aestivum, cultivar Zarya) to Erysiphe graminis f. sp. tritici Marchal. (Syn. Blumeria graminis), a causal organism of wheat powdery mildew and exogenous zeatin has been investigated. Two-week-old seedlings were inoculated with the pathogen. Zeatin or zeatinriboside were added to the nutrient solution immediately after inocu ...
DOI:
10.1016/j.jplph.2009.05.014
PubMed:
19592133

77. Root growth profiles of Aveneae and Poeae plants in optically active α-methylbenzyl-3-p-tolylurea media

Author:
KOJIMA, HISAHIRO; OHNUMA, GOSHI; OMOKAWA, HIROYOSHI
Source:
Weed biology and management 2009 v.9 no.3 pp. 192-199
ISSN:
1444-6162
Subject:
urea herbicides; weed biology; rice; weed control; dose response; Oryza sativa; wheat; Phleum pratense; Dactylis glomerata; Alopecurus; Triticum aestivum; weeds; root growth; stereoisomers; structure-activity relationships; turf grasses; application rate; Lolium multiflorum
Abstract:
... Using a root growth inhibition assay, we studied the diverse chiral responses of plants in the tribes, Aveneae and Poeae, to the optically active compounds, R- and S-1-α-methylbenzyl-3-p-tolylurea (MBTU). We specifically examined the responses of grasses belonging to the Poeae tribe (Lolium, Briza, Poa, Dactylis, and Festuca) and the Aveneae tribe (Avena, Holcus, Agrostis, Alopecurus, Beckmannia, ...
DOI:
10.1111/j.1445-6664.2009.00339.x

78. Toxicity and bioavailability of copper nanoparticles to the terrestrial plants mung bean (Phaseolus radiatus) and wheat (Triticum aestivum): plant agar test for water-insoluble nanoparticles

Author:
Lee, Woo-Mi; An, Youn-Joo; Yoon, Hyeon; Kweon, Hee-Seok
Source:
Environmental toxicology and chemistry 2008 v.27 no.9 pp. 1915-1921
ISSN:
0730-7268
Subject:
plant growth; dose response; bioaccumulation; phytotoxicity; bioavailability; copper; ecotoxicology; wheat; toxicity testing; Triticum aestivum; transmission electron microscopy; agar; solubility; Vigna radiata var. radiata; nanoparticles
Abstract:
... Because of their insolubility in water, nanoparticles have a limitation concerning toxicity experiments. The present study demonstrated a plant agar test for homogeneous exposure of nanoparticles to plant species. The effect of Cu nanoparticles on the growth of a plant seedling was studied, and bioaccumulation of nanoparticles was investigated. All tests were conducted in plant agar media to preve ...
DOI:
10.1897/07-481.1
PubMed:
19086317

79. Trehalose: Protector of antioxidant enzymes or reactive oxygen species scavenger under heat stress

Author:
Luo, Yin; Li, Wei-Min; Wang, Wei
Source:
Environmental and experimental botany 2008 v.63 no.1-3 pp. 378-384
ISSN:
0098-8472
Subject:
dose response; catalase; ascorbate peroxidase; hydrogen peroxide; superoxide dismutase; wheat; dosage; heat stress; trehalose; free radical scavengers; Triticum aestivum; superoxide anion; antioxidant activity; enzyme activity
Abstract:
... Trehalose is known to protect membranes and macromolecules. Its accumulation has been implicated in allowing plants to tolerate stress, including heat-shock. However, under heat-shock, it is not clear whether trehalose eliminates reactive oxygen species (ROS) directly or indirectly by protecting antioxidant enzymes. In this study, we initially examined the effects of trehalose on the activities of ...
DOI:
10.1016/j.envexpbot.2007.11.016

80. The grain quality of spring wheat (Triticum aestivum L.) in relation to elevated ozone uptake and carbon dioxide exposure

Author:
Piikki, K.; De Temmerman, L.; Ojanperä, K.; Danielsson, H.; Pleijel, H.
Source:
European journal of agronomy 2008 v.28 no.3 pp. 245-254
ISSN:
1161-0301
Subject:
carbon dioxide; crop quality; stomatal conductance; dose response; wheat gluten; falling number; starch; ozone; seed productivity; spring wheat; Triticum aestivum; grain yield; water content; uptake mechanisms; protein content; Sweden; Belgium; Finland
Abstract:
... Ozone (O₃) and carbon dioxide (CO₂) effects on the quality of spring wheat (Triticum aestivum L.) were evaluated. The dataset originated from 13 European open-top chamber experiments, including three countries, 10 years and four cultivars. The O₃ exposure significantly reduced the protein yield, even though the grain protein concentration (GPC) was increased and tended to increase the Zéleny value ...
DOI:
10.1016/j.eja.2007.07.004

81. Decreased toxicity to terrestrial plants associated with a mixture of methyl tert-butyl ether and its metabolite tert-butyl alcohol

Author:
An, Y.J.; Lee, W.M.
Source:
Environmental toxicology and chemistry 2007 v.26 no.8 pp. 1711-1716
ISSN:
0730-7268
Subject:
seedling growth; wheat; toxicity testing; Phaseolus; Brassica rapa subsp. oleifera; metabolites; dose response; soil pollution; Triticum aestivum; uptake mechanisms; Brassica oleracea var. alboglabra; Zea mays; acute toxicity; Cucumis sativus; cucumbers; corn; pollutants; mixtures; Vigna radiata var. radiata; adverse effects; additives; gasoline; Sorghum bicolor
DOI:
10.1897/06-434R1.1
PubMed:
17702346

82. Effects of exogenous nitric oxide donor on antioxidant metabolism in wheat leaves under aluminum stress

Author:
Zhang, H.; Li, Y. H.; Hu, L. Y.; Wang, S. H.; Zhang, F. Q.; Hu, K. D.
Source:
Russian journal of plant physiology 2008 v.55 no.4 pp. 469-474
ISSN:
1021-4437
Subject:
metabolism; dose response; nitric oxide; catalase; ascorbate peroxidase; hydrogen peroxide; malondialdehyde; seedlings; proline; superoxide dismutase; wheat; Triticum aestivum; aluminum; nitroprusside; antioxidant activity; chlorophyll; leaves; single nucleotide polymorphism
Abstract:
... With the enhancement of aluminum stress, the content of chlorophyll in wheat seedlings (Triticum aestivum L.) decreased dramatically. At 0.2 mM AlCl₃, the chlorophyll content halved. The aluminum-induced decrease in chlorophyll content could be alleviated by exogenous nitric oxide donor, sodium nitroprusside (SNP) in a dose-dependent manner. Treatment with SNP dramatically promoted the activities ...
DOI:
10.1134/S1021443708040067

83. Oryza sativa straw restricts Phalaris minor growth: allelochemicals or soil resource manipulation?

Author:
Shalini Kaushik; Inderjit
Source:
Biology and fertility of soils 2007 v.43 no.5 pp. 557-563
ISSN:
0178-2762
Subject:
Oryza sativa; Phalaris minor; Triticum aestivum; activated carbon; allelochemicals; biomass; crops; dose response; nitrogen fertilizers; phenolic compounds; phytotoxicity; rice straw; seedling growth; soil amendments; soil properties; soil sterilization; washing; weeds; wheat
Abstract:
... Unharvested stubbles or harvested straw of rice (Oryza sativa L.) gets incorporated into soil and interferes with the seedling growth of crop plants. In this paper, we investigated whether rice straw, either through releasing allelochemicals and/or through manipulating soil properties, influences seedling growth of Phalaris minor Retz., a non-native weed largely restricted to wheat (Triticum aesti ...
DOI:
10.1007/s00374-006-0136-z

84. Role of calcium-calmodulin in auxin-induced somatic embryogenesis in leaf base cultures of wheat (Triticum aestivum var. HD 2329)

Author:
Mahalakshmi, Akella; Singla, Bhumica; Khurana, Jitendra P.; Khurana, Paramjit
Source:
Plant cell, tissue, and organ culture 2007 v.88 no.2 pp. 167-174
ISSN:
0167-6857
Subject:
dose response; zinc; calcium; explants; wheat; magnesium; somatic embryogenesis; Triticum aestivum; 2,4-D; micropropagation; calcium-binding proteins; in vitro regeneration; culture media; leaves
Abstract:
... Wheat leaf bases cultured for 1 day on 2,4-d (10 μM) display the induction of somatic embryogenesis. The induction of somatic embryogenesis by 2,4-d appears to be calcium-mediated as treatment of leaf bases with the calcium chelator, EGTA, prior to 2,4-d treatment, inhibited the induction of somatic embryogenesis. This sensitivity of auxin to reduced calcium levels can be reversed by calcium ions ...
DOI:
10.1007/s11240-006-9186-z

85. The effects of UV-B radiation on photosynthesis in relation to Photosystem II photochemistry, thermal dissipation and antioxidant defenses in winter wheat (Triticum aestivum L.) seedlings at different growth temperatures

Author:
Yang, Shu-Hua; Wang, Li-Jun; Li, Shao-Hua; Duan, Wei; Loescher, Wayne; Liang, Zhen-Chang
Source:
Functional plant biology 2007 v.34 no.10 pp. 907-917
ISSN:
1445-4408
Subject:
ascorbate peroxidase; seedlings; lipid peroxidation; ultraviolet radiation; dose response; fluorescence; Triticum aestivum; heat emissions; superoxide dismutase; net assimilation rate; night temperature; lutein; winter wheat; antioxidant activity; enzyme activity; glutathione-disulfide reductase; catalase; photosystem II; diurnal variation; chlorophyll
DOI:
10.1071/FP07083

86. Effects on growth and physiological parameters in wheat (Triticum aestivum L.) grown in soil and irrigated with cyanobacterial toxin contaminated water

Author:
Pflugmacher, S.; Hofmann, J.; Hubner, B.
Source:
Environmental toxicology and chemistry 2007 v.26 no.12 pp. 2710-2716
ISSN:
0730-7268
Subject:
reactive oxygen species; wheat; clay; oxidative stress; shoots; dose response; soil pollution; bioavailability; glutathione transferase; Triticum aestivum; uptake mechanisms; photosynthesis; microcystin-LR; water pollution; plant development; germination; sprinkler irrigation; root growth; pot culture; enzyme activity; irrigation water; glutathione-disulfide reductase; glutathione peroxidase; soil-plant interactions
DOI:
10.1897/07-145.1
PubMed:
18020690

87. Evaluation of sulfosulfuron for broadleaved and grass weed control in wheat (Triticum aestivum L.) in Iran

Author:
Baghestani, M.A.; Zand, E.; Jamali, M.; Maighany, F.
Source:
Crop protection 2007 v.26 no.9 pp. 1385-1389
ISSN:
0261-2194
Subject:
weed control; application timing; dose response; pesticide application; tillering; isoproturon; wheat; broadleaf weeds; crop yield; Triticum aestivum; grass weeds; population size; biomass; diflufenican; Iran
Abstract:
... Three experiments were conducted during 2003-2004 at different locations in Iran to compare the efficacy of sulfosulfuron at 15, 19.95, and 24.90 g ai/ha as a new dual purpose herbicide with some currently applied herbicides including tribenuron methyl, clodinafop propargyl, diflufenican plus isoproturon as a dual purpose herbicide, and tank mix of clodinafop propargyl plus tribenuron methyl. Herb ...
DOI:
10.1016/j.cropro.2006.11.011

88. Responses of three types of winter wheat (Triticum aestivum L.) to spring-applied post-emergence herbicides

Author:
Sikkema, P.H.; Brown, L.; Shropshire, C.; Soltani, N.
Source:
Crop protection 2007 v.26 no.5 pp. 715-720
ISSN:
0261-2194
Subject:
bromoxynil; height; MCPA (herbicide); plant response; field experimentation; 2,4-D; plant damage; dose response; varieties; Triticum aestivum; postemergent weed control; plant growth; dicamba; mecoprop; herbicide resistance; winter wheat; pesticide application; pesticide mixtures; dichlorprop; Ontario
Abstract:
... Field studies were conducted over a three-year period (2002-2004) to evaluate the tolerance of recently developed varieties of winter wheat representing soft white winter wheat (SWWW), soft red winter wheat (SRWW), and hard red winter wheat (HRWW) to four spring-applied post-emergence (POST) herbicides. Bromoxynil plus MCPA, 2,4-D amine, dichlorprop plus 2,4-D, and dicamba plus MCPA plus mecoprop ...
DOI:
10.1016/j.cropro.2006.06.010

89. Responses of winter wheat (Triticum aestivum L.) to autumn applied post-emergence herbicides

Author:
Soltani, N.; Shropshire, C.; Sikkema, P.H.
Source:
Crop protection 2006 v.25 no.4 pp. 346-349
ISSN:
0261-2194
Subject:
Triticum aestivum; winter wheat; perennial weeds; pesticide application; postemergent weed control; herbicides; herbicide resistance; dose response; plant damage; crop yield; Ontario
Abstract:
... The adoption of new production practices such as no-till and the use of non-residual herbicides such as glyphosate in the preceding crop has resulted in an increase of winter annual, biennial, and perennial weeds in winter wheat in Ontario. Few post-emergence (POST) autumn applied herbicide options are available to control these weeds. Five field trials were conducted in Ontario to evaluate the PO ...
DOI:
10.1016/j.cropro.2005.05.012

90. Calluses initiated from thin mature embryo fragments are suitable targets for wheat transformation as assessed by long-term GUS expression studies

Author:
Delporte, F.; Li, S.; Jacquemin, J.M.
Source:
Plant cell, tissue, and organ culture 2005 v.80 no.2 pp. 139-149
ISSN:
0167-6857
Subject:
genetic transformation; dose response; biolistics; transgenic plants; embryo (plant); Agrobacterium radiobacter; explants; wheat; gene expression; Triticum aestivum; 2,4-D; micropropagation; enzyme activity; in vitro regeneration; culture media; beta-glucuronidase; callus
Abstract:
... Microprojectile- or Agrobacterium-mediated DNA delivery into calluses initiated from immature embryos has proven to be effective in transforming wheat. Yet, obtaining a large number of high quality immature embryos throughout the year is a laborious and delicate process. To circumvent these limitations, we propose an alternative technique applying the particle bombardment technology to calluses de ...

91. Carbon-to-nitrogen ratio and carbon loading of production media influence freeze-drying survival and biocontrol efficacy of Cryptococcus nodaensis OH 182.9

Author:
Zhang, S.; Schisler, D.A.; Boehm, M.J.; Slininger, P.J.
Source:
Phytopathology 2005 v.95 no.6 pp. 626-631
ISSN:
0031-949X
Subject:
Fusarium graminearum; viability; Cryptococcus (Tremellomycetes); in vitro culture; dose response; freeze drying; nitrogen; wheat; disease control; pathogenicity; carbon; Triticum aestivum; scab diseases; culture media; biological control
Abstract:
... Fusarium head blight (FHB), caused by Gibberella zeae, is a devastating disease of wheat worldwide. Cryptococcus nodaensis OH 182.9 is an effective biocontrol agent for this disease. Development of a dried product of OH 182.9 would have potential advantages of ease of handling, favorable economics, and acceptance by end users. Isolate OH 182.9 was grown for 48 and 72 h in semi-defined complete liq ...
Handle:
10113/37452
DOI:
10.1094/PHYTO-95-0626
PubMed:
18943778

92. Cuticular uptake of xenobiotics into living plants. part 2: influence of the xenobiotic dose on the uptake of bentazone, epoxiconazole and pyraclostrobin, applied in the presence of various surfactants, into Chenopodium album, Sinapis alba and Triticum aestivum leaves

Author:
Forster, W.A.; Zabkiewicz, J.A.; Liu, Z.
Source:
Pest management science 2006 v.62 no.7 pp. 664-672
ISSN:
1526-498X
Subject:
foliar uptake; weed control; dose response; xenobiotics; phytotoxicity; Sinapis alba; Chenopodium album; pyraclostrobin; wheat; toxic substances; surfactants; plant cuticle; bentazon; weeds; Triticum aestivum; molecular weight; application rate; leaves
Abstract:
... This study has determined the uptake of three pesticides, applied as commercial or model formulations in the presence of a wide range of surfactants, into the leaves of three plant species (bentazone into Chenopodium album L. and Sinapis alba L., epoxiconazole and pyraclostrobin into Triticum aestivum L.). The results have confirmed previous findings that the initial dose (nmol mm⁻²) of xenobiotic ...
DOI:
10.1002/ps.1227
PubMed:
16718743

93. Plant Growth Inhibitory Compounds from Aqueous Leachate of Wheat Straw

Author:
Nakano, H.; Morita, S.; Shigemori, H.; Hasegawa, K.
Source:
Plant growth regulation 2006 v.48 no.3 pp. 215-219
ISSN:
0167-6903
Subject:
Lactuca sativa; Oryza sativa; rice; Triticum aestivum; wheat; Nasturtium officinale; watercress; seedlings; roots; growth retardation; plant growth substances; wheat straw; plant exudates; allelochemicals; dose response; tryptophan
Abstract:
... When seedlings of lettuce, cress, rice and wheat were incubated with the leachate of wheat straw, the roots growth of lettuce and garden cress were particularly inhibited. The leachate of wheat straw (100 g eq./l) showed 80.5 and 79.4% inhibition for lettuce and cress roots, respectively. The inhibitory activity was stronger as the concentration of wheat straw leachate was greater. This result ind ...
DOI:
10.1007/s10725-006-0006-6

94. Regulation of Starch and Protein Synthesis in Wheat Grains by Feeding Sucrose and Glutamine to Detached Ears Cultured in vitro

Author:
Zhou, Q.; Jiang, D.; Dai, T.; Jing, Q.; Cao, W.
Source:
Plant growth regulation 2006 v.48 no.3 pp. 247-259
ISSN:
0167-6903
Subject:
Triticum aestivum; wheat; in vitro culture; seeds; cell growth; starch; biosynthesis; protein synthesis; transaminases; starch synthase; enzyme activity; culture media; sucrose; glutamine; dose response; cultivars; genetic variation
Abstract:
... Three experiments of in vitro ear culture were conducted to evaluate how the substrates of C (carbon) and N (nitrogen) supply in liquid medium regulate the grain growth and synthesis of protein and starch in two winter wheat cultivars. Increasing glutamine supply with constant sucrose concentration increased the contents of total protein and protein components of albumin and globulin in grain, and ...
DOI:
10.1007/s10725-006-0001-y

95. Repellent, insecticidal and phytotoxic activities of isoalantolactone from Inula racemosa

Author:
Liu, C.H.; Mishra, A.K.; Tan, R.X.
Source:
Crop protection 2006 v.25 no.5 pp. 508-511
ISSN:
0261-2194
Subject:
seed germination; seedling growth; insect repellents; dose response; phytotoxicity; Inula racemosa; insecticidal properties; medicinal plants; plant extracts; wheat; storage insects; plant pests; Triticum aestivum; Sitophilus oryzae; China
Abstract:
... Isoalantolactone, a natural product isolated from traditional Chinese medicinal herb roots of Inula racemosa Hook. f. (Fam. Compositae), has been shown to possess strong antifungal activities. The present investigation showed that isoalantolactone also exhibited repellent and toxic activities against rice weevil [Sitophilus oryzae (L.) (Coleoptera: Curculionidae)] based on a food preference appara ...
DOI:
10.1016/j.cropro.2005.05.008

96. Triticeae plants preferentially responded to S-1-α-methylbenzyl-3-p-tolylurea in root growth and tetrazolium reduction assays

Author:
Tanaka, C.; Itagaki, M.; Arai, S.; Omokawa, H.
Source:
Weed biology and management 2005 v.5 no.2 pp. 62-68
ISSN:
1444-6162
Subject:
mechanism of action; weed control; barley; tetrazolium; dose response; Hordeum vulgare; phytotoxicity; herbicides; wheat; Secale cereale; rye; Triticum aestivum; root growth; growth retardation
DOI:
10.1111/j.1445-6664.2005.00161.x

97. A rapid response of beta-amylase to nitric oxide but not gibberellin in wheat seeds during the early stage of germination

Author:
Zhang, H.; Shen, W.B.; Xu, L.L.
Source:
Planta 2005 v.220 no.5 pp. 708-716
ISSN:
0032-0935
Subject:
rice; Oryza sativa; wheat; signal transduction; Brassica napus; plant proteins; barley; dose response; Hordeum vulgare; gibberellic acid; Brassica juncea; Triticum aestivum; beta-amylase; Arabidopsis thaliana; Zea mays; Glycine max; seeds; Citrullus lanatus var. lanatus; corn; enzyme activity; seed germination; nitric oxide; soybeans; alpha-amylase
DOI:
10.1007/s00425-004-1390-7
PubMed:
15517355

98. Effects of Short-term Red Radiation and Choline Compounds on Cytokinin Content, Chlorophyll Accumulation and Photomorphogenesis in Wheat Seedlings

Author:
Kreslavski, V.; Kobzar, E.; Ivanova, E.; Kuznetsov, E.
Source:
Plant growth regulation 2005 v.47 no.1 pp. 9-15
ISSN:
0167-6903
Subject:
Triticum aestivum; wheat; seedlings; etiolation; seedling growth; morphogenesis; light intensity; red light; dose response; chemical constituents of plants; choline; cytokinins; chlorophyll; quantitative analysis
Abstract:
... Effects of choline compounds (2-chloroethyltrimethylammonium chloride and 2-ethyltrimethylammonium chloride) as well as red radiation (R) pulse on the dynamics of cytokinin changes, growth and chlorophyll (a + b) accumulation were studied during the growth and greening of etiolated wheat seedlings (Triticum aestivum L., var. Mironovskaya-808). The seedlings were grown for 120 h in the dark and the ...
DOI:
10.1007/s10725-005-0861-6

99. Effects of exogenous ABA and cytokinin on leaf photosynthesis and grain protein accumulation in wheat ears cultured in vitro

Author:
Xie, Z.; Jiang, D.; Dai, T.; Jing, Q.; Cao, W.
Source:
Plant growth regulation 2004 v.44 no.1 pp. 25-32
ISSN:
0167-6903
Subject:
Triticum aestivum; wheat; seeds; filling period; leaves; photosynthesis; net assimilation rate; abscisic acid; cytokinins; dose response; nitrogen metabolism; in vitro culture

100. The effect of chitosan and Bion on resistance to pink snow mould in perennial ryegrass and winter wheat

Author:
Hofgaard, I.S.; Ergon, A.; Wanner, L.A.; Tronsmo, A.M.
Source:
Phytopathologische Zeitschrift 2005 v.153 no.2 pp. 108-119
ISSN:
0931-1785
Subject:
grasses; application timing; dose response; chitosan; disease prevention; Lolium perenne; Monographella nivalis; plant pathogenic fungi; Triticum aestivum; disease resistance; winter wheat; pathogenesis-related proteins; gene expression regulation; molds (fungi)
DOI:
10.1111/j.1439-0434.2005.00937.x