Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 1,735
|
Next »
Search Results
- Author:
- Malamura, Dan; Biligetu, Bill; Prager, Sean M.
- Source:
- Crop protection 2021 v.139 pp. 105375
- ISSN:
- 0261-2194
- Subject:
- Trifolium pratense, etc ; Hypera nigrirostris; bees; chemical control; cyantraniliprole; deltamethrin; forage; growing season; insect control; insect larvae; insect pests; laboratory experimentation; pollinators; rearing; seed yield; shoots; winter hardiness; Canada; Show all 18 Subjects
- Abstract:
- ... Single-cut red clover (Trifolium pratense L.) is an important forage seed crop in Western Canada due to its winter hardiness and economical value. However, infestation of lesser clover leaf weevil (Hypera nigrirostris F.) can lead to drastic yield losses (over 50%). The aim of this research was to evaluate the effectiveness of insecticides deltamethrin (Decis) and cyantraniliprole (Exirel) in cont ...
- DOI:
- 10.1016/j.cropro.2020.105375
-
https://dx.doi.org/10.1016/j.cropro.2020.105375
- Author:
- Beszterda, Monika; Kasperkowiak, Małgorzata; Frański, Rafał
- Source:
- Talanta 2020 v.211 pp. 120733
- ISSN:
- 0039-9140
- Subject:
- Trifolium pratense, etc ; bioactive properties; biochanin A; electrospray ionization mass spectrometry; ions; isomers; plant estrogens; Show all 7 Subjects
- Abstract:
- ... Biochanin A is one of the most common phytoestrogens, occurring in high concentrations in soy and red clover, for instance, which shows a wide spectrum of biological activity. Prunetin is an isomer of biochanin A, and even though it is not very common, its structural relationship to the latter makes it interesting, regarding its biological activity. Nowadays, LC/ESI-MS methods are widely used for ...
- DOI:
- 10.1016/j.talanta.2020.120733
-
https://dx.doi.org/10.1016/j.talanta.2020.120733
- Author:
- Kudryavtseva, E. I.; Vinogradova, Yu. Kir.; Viting, K. B.; Kozyreva, A. M.; Nefedova, A. D.; Petrash, E. G.; Stukalov, A. S.; Sheynova, A. D.; Reshetnikova, N. M.
- Source:
- Russian journal of biological invasions 2020 v.11 no.3 pp. 225-237
- ISSN:
- 2075-1117
- Subject:
- Trifolium pratense, etc ; Avena sativa; Erigeron annuus; Raphanus sativus; ecological invasion; habitats; hypocotyls; reproductive success; seed germination; seed productivity; seedlings; Russia; Show all 12 Subjects
- Abstract:
- ... The reasons for the broad distribution of Erigeron annuus in Central Russia (its biology (habitat, seed productivity, seed distribution) and its ability to exert allelopathic influence) are discussed. The following indicators were used in the experiments to assess the effect of Erigeron annuus on other species: seed germination, development rate, and length of the hypocotyl. The seeds of Erigeron ...
- DOI:
- 10.1134/S2075111720030054
-
http://dx.doi.org/10.1134/S2075111720030054
- Author:
- Nakamura, Shoko; Yamamoto, Shunsuke; Sawamura, Nobuo; Nikkeshi, Aoi; Kishi, Shigeki; Kamo, Tsunashi
- Source:
- Applied entomology and zoology 2020 v.55 no.4 pp. 405-412
- ISSN:
- 0003-6862
- Subject:
- Trifolium pratense, etc ; Apis mellifera; Bombus; Diospyros kaki; Toxicodendron; cultivars; female flowers; fruits; growers; honey bees; male flowers; monitoring; nests; orchards; persimmons; pollen; pollen loads; pollination; pollinators; seeds; Show all 20 Subjects
- Abstract:
- ... Most common cultivars of Oriental (or Japanese) persimmon, Diospyros kaki Thunb. (Ericales: Ebenaceae), set mostly female flowers and require pollen from male flowers of other cultivars for pollination. Growers often introduce the European honeybee, Apis mellifera L. (Hymenoptera: Apidae), into their orchards to promote pollination. Here, we investigated the pollination effectiveness of A. mellife ...
- DOI:
- 10.1007/s13355-020-00696-5
-
http://dx.doi.org/10.1007/s13355-020-00696-5
- Author:
- Marzec-Grządziel, Anna; Gałązka, Anna; Marek-Kozaczuk, Monika; Skorupska, Anna
- Source:
- Agronomy 2020 v.10 no.9
- ISSN:
- 2073-4395
- Subject:
- Trifolium pratense, etc ; Agrobacterium; Pisum sativum; bacteria; carbon; genetic variation; nitrogen; pH; peas; phenotype; phenotypic variation; polymerase chain reaction; repetitive sequences; ribosomal RNA; root nodules; sodium chloride; Show all 16 Subjects
- Abstract:
- ... The aim of this study was to analyse the genetic and phenotypic differentiation of bacteria isolated from root nodules of Trifolium rubens, a rare clover species. The symbiotic compatibility of selected isolates was investigated using two agronomically important plants, red clover (Trifolium pratense L.) and pea (Pisum sativum L.). A high genetic diversity of analysed strains was shown using the E ...
- DOI:
- 10.3390/agronomy10091286
-
http://dx.doi.org/10.3390/agronomy10091286
- Author:
- Venâncio, Cátia; Pereira, Ruth; Lopes, Isabel
- Source:
- Environmental pollution 2020 v.260 pp. 113993
- ISSN:
- 0269-7491
- Subject:
- Trifolium pratense, etc ; Festuca arundinacea; Lolium perenne; Vicia sativa; adverse effects; biomass; coastal ecosystems; coastal soils; models; plant growth; salinity; salt stress; sea level; seawater; seed germination; sodium chloride; Show all 16 Subjects
- Abstract:
- ... Sea level rise induced-salinization is lowering coastal soils productivity. In order to assess the effects that increased salinity may provoke in terrestrial plants, using as model species: Trifolium pratense, Lolium perenne, Festuca arundinacea and Vicia sativa, two specific objectives were targeted: i) to determine the sensitivity of the selected plant species to increased salinity (induced by s ...
- DOI:
- 10.1016/j.envpol.2020.113993
-
https://dx.doi.org/10.1016/j.envpol.2020.113993
- Author:
- VanVolkenburg, Heather; Guinel, Frédérique C.; Vasseur, Liette
- Source:
- Agronomy 2020 v.10 no.4
- ISSN:
- 2073-4395
- Subject:
- Trifolium pratense, etc ; Amaranthus hybridus; Cichorium intybus; Lolium multiflorum; Medicago sativa; Raphanus sativus; allelopathy; cover crops; noxious weeds; plant extracts; plant organs; roots; seed germination; shoots; soil; Ontario; Show all 16 Subjects
- Abstract:
- ... Amaranthus hybridus is a noxious weed in Ontario, with demonstrated allelopathic properties that can lead to decreased agricultural production. We tested the germination and growth of five cover crop species exposed to A. hybridus extracts, and to dried or fresh materials in soil. A germination index was calculated, and the dry weight of plant organs were measured to quantify responses to treatmen ...
- DOI:
- 10.3390/agronomy10040529
-
https://dx.doi.org/10.3390/agronomy10040529
- Author:
- Pu, Xiaojian; Tian, Jiusheng; Tian, Xinhui; Du, Wenhua
- Source:
- European journal of plant pathology 2020 v.156 no.3 pp. 799-809
- ISSN:
- 0929-1873
- Subject:
- Trifolium pratense, etc ; Erysiphe; chromosome mapping; crossing; cultivars; disease resistance; disease severity; genes; genotype; hybrids; linkage groups; phenotypic variation; powdery mildew; quantitative trait loci; Show all 14 Subjects
- Abstract:
- ... To locate quantitative trait loci (QTLs) resistant to powdery mildew (Erysiphe), a major disease of red clover, 151 red clover hybrids from crosses between genotypes from a resistant (Ganong PR1) and a susceptible (Minshan) cultivar were used as the mapping population. A genetic linkage map of red clover was constructed, and 30 plants with disease severity levels on a scale of one to nine, were us ...
- DOI:
- 10.1007/s10658-019-01929-2
-
https://dx.doi.org/10.1007/s10658-019-01929-2
- Author:
- Hand, Laurence H.; Gougoulias, Christos; Bramke, Irene; Thomas, Kevin A.; Oliver, Robin G.
- Source:
- Environmental toxicology and chemistry 2020 v.39 no.2 pp. 450-457
- ISSN:
- 0730-7268
- Subject:
- Trifolium pratense, etc ; Lolium; active ingredients; environmental assessment; environmental fate; experimental design; guidelines; hot peppers; plant protection; prometryn; rhizosphere; risk; risk assessment process; root systems; roots; Show all 15 Subjects
- Abstract:
- ... Plant protection products (PPPs) undergo rigorous regulatory assessment to ensure that they do not pose unacceptable risks to the environment. Elucidation of their fate and behavior in soil is an integral part of this environmental risk assessment. The active substance degradation in soil of PPPs is first assessed in laboratory studies (typically following Organisation for Economic Co‐operation an ...
- DOI:
- 10.1002/etc.4604
-
http://dx.doi.org/10.1002/etc.4604
- Author:
- Mălinas, Anamaria; Rotar, Ioan; Vidican, Roxana; Iuga, Vasile; Păcurar, Florin; Mălinas, Cristian; Moldovan, Cristina
- Source:
- Agronomy 2020 v.10 no.1
- ISSN:
- 2073-4395
- Subject:
- Trifolium pratense, etc ; Lolium multiflorum; fertilizer application; forage; grasslands; management systems; monitoring; nitrogen; nitrogen fertilizers; nutrient use efficiency; pure stands; sown pastures; sward; temperate zones; Romania; Show all 15 Subjects
- Abstract:
- ... Assessing the efficiency of nitrogen application is a valuable first step in establishing an optimum N fertilizer management plan. The aim of this study was to elaborate a sustainable N management system for sown grassland installed in temperate regions, through manipulation of nitrogen use efficiency and nitrogen response efficiency (NRE) indicators. Research was performed in western Romania. The ...
- DOI:
- 10.3390/agronomy10010149
-
https://dx.doi.org/10.3390/agronomy10010149
- Author:
- Han, C; Chan, WY; Hill, PB
- Source:
- Australian veterinary journal 2020 v.98 no.1-2 pp. 17-25
- ISSN:
- 0005-0423
- Subject:
- Trifolium pratense, etc ; Dermatophagoides farinae; Malassezia pachydermatis; Poa pratensis; Tyrophagus putrescentiae; allergens; dogs; drug therapy; grasses; hypersensitivity; immunoglobulin E; immunologic techniques; immunotherapy; mites; pollen; pruritus; retrospective studies; South Australia; Show all 18 Subjects
- Abstract:
- ... OBJECTIVE: To determine the prevalence of positive allergen reactions in intradermal and IgE serological tests in dogs presenting to a dermatology referral centre in South Australia and the clinical efficacy of subsequent allergen‐specific immunotherapy. DESIGN: Retrospective study. METHODS: Results from 108 intradermal allergy tests, 25 IgE serological assays and immunotherapy outcomes in 37 dogs ...
- DOI:
- 10.1111/avj.12892
-
http://dx.doi.org/10.1111/avj.12892
- Author:
- Malca Garcia, Gonzalo R.; Friesen, J. Brent; Liu, Yang; Nikolić, Dejan; Lankin, David C.; McAlpine, James B.; Chen, Shao-Nong; Pauli, Guido F.
- Source:
- Journal of chromatography 2019 v.1605 pp. 360277
- ISSN:
- 0021-9673
- Subject:
- Trifolium pratense, etc ; acetone; acetonitrile; biochanin A; countercurrent chromatography; dimethyl sulfoxide; formononetin; ingredients; kaempferol; solubility; solvents; Show all 11 Subjects
- Abstract:
- ... Starting with an isoflavone-rich red clover extract (RCE), this study expands on the DESIGNER approach to Deplete and Enrich Select Ingredients to Generate Normalized Extract Resources using countercurrent separation (CCS) methodology. A hydrostatic CCS (also known as centrifugal partition chromatography, CPC) technique was used to enrich and deplete selected bioactive isoflavones of RCE extracts. ...
- DOI:
- 10.1016/j.chroma.2019.05.057
- PubMed:
- 31307793
- PubMed Central:
- PMC6864275
-
https://dx.doi.org/10.1016/j.chroma.2019.05.057
- Author:
- Egan, Lucy M.; Hofmann, Rainer W.; Ghamkhar, Kioumars; Hoyos-Villegas, Valerio
- Source:
- Crop science 2019 v.59 no.5 pp. 2100-2108
- ISSN:
- 0011-183X
- Subject:
- Trifolium pratense, etc ; biodiversity; germplasm; inbreeding; kinship; parents; pedigree; provenance; risk; New Zealand; Show all 10 Subjects
- Abstract:
- ... Pedigree maps are useful for germplasm exploration and identification of genetic bottlenecks. The primary objective of this study was to construct pedigree maps for red clover (Trifolium pratense L.) accessions held in the Margot Forde Germplasm Centre (MFGC) in Palmerston North, New Zealand. Pedigree data from accessions introduced into the MFGC between 1934 and 2016 were used. Data were filtered ...
- DOI:
- 10.2135/cropsci2019.01.0045
-
http://dx.doi.org/10.2135/cropsci2019.01.0045
- Author:
- Kelling, Keith A.; Andraski, Todd W.; Speth, Phillip E.
- Source:
- American journal of potato research 2019 v.96 no.1 pp. 62-68
- ISSN:
- 1099-209X
- Subject:
- Trifolium pratense, etc ; alfalfa; forage; forage legumes; nitrate nitrogen; nitrogen; nitrogen fertilizers; petioles; potatoes; Wisconsin; Show all 10 Subjects
- Abstract:
- ... In an attempt to quantify the nitrogen (N) contribution from forage legumes to succeeding potatoes, trials were conducted on 28 Wisconsin alfalfa or red clover fields. Potato total yield and crop value were determined following in-season fertilizer N applications of 0 to 280 kg ha⁻¹. Only 2 of the 12 alfalfa sites and 6 of the 16 red clover sites responded to applied fertilizer N when total yield ...
- DOI:
- 10.1007/s12230-018-9689-2
-
https://dx.doi.org/10.1007/s12230-018-9689-2
- Author:
- Samiei, Salma; Rasti, Pejman; Ly Vu, Joseph; Buitink, Julia; Rousseau, David
- Source:
- Plant methods 2020 v.16 no.1 pp. 103
- ISSN:
- 1746-4811
- Subject:
- Trifolium pratense, etc ; alfalfa; artificial intelligence; computer vision; cotyledons; data collection; early development; image analysis; leaf area index; leaves; lymphocytes; monitoring; neural networks; phenotype; seedling emergence; seedling growth; seedlings; soil; Show all 18 Subjects
- Abstract:
- ... BACKGROUND: Monitoring the timing of seedling emergence and early development via high-throughput phenotyping with computer vision is a challenging topic of high interest in plant science. While most studies focus on the measurements of leaf area index or detection of specific events such as emergence, little attention has been put on the identification of kinetics of events of early seedling deve ...
- DOI:
- 10.1186/s13007-020-00647-9
-
https://dx.doi.org/10.1186/s13007-020-00647-9
- Author:
- Arlauskiene, Ausra; Jablonskyte-Rasce, Danute; Slepetiene, Alvyra
- Source:
- Archiv für Acker- und Pflanzenbau und Bodenkunde 2020 v.66 no.8 pp. 1058-1073
- ISSN:
- 1476-3567
- Subject:
- Trifolium pratense, etc ; Cambisols; Festulolium; Medicago sativa; aboveground biomass; alfalfa; autumn; clay loam soils; forage; grain yield; green manures; mulches; mulching; nitrogen; organic compounds; organic production; soil quality; spring; total nitrogen; Show all 19 Subjects
- Abstract:
- ... Research was conducted to determine the effects of perennial legume and their mulches on cereal grain yield and the alterations to clay loam Cambisol properties. The perennial legumes (Trifolium pratense L., Medicago sativa L.) as well as their mixtures with festulolium (x Festulolium) were studied in conjunction with their aboveground biomass management methods: removal from the field (cut twice ...
- DOI:
- 10.1080/03650340.2019.1652816
-
http://dx.doi.org/10.1080/03650340.2019.1652816
- Author:
- Laamrani, Ahmed; Voroney, Paul R.; Berg, Aaron A.; Gillespie, Adam W.; March, Michael; Deen, Bill; Martin, Ralph C.
- Source:
- Agronomy 2020 v.10 no.6
- ISSN:
- 2073-4395
- Subject:
- Trifolium pratense, etc ; agricultural soils; alfalfa; carbon; combustion; conventional tillage; corn; cover crops; crop rotation; long term experiments; no-tillage; silt loam soils; soil carbon; soil fertility; soil sampling; soybeans; temporal variation; topsoil; winter wheat; Ontario; Show all 20 Subjects
- Abstract:
- ... The impacts of tillage practices and crop rotations are fundamental factors influencing changes in the soil carbon, and thus the sustainability of agricultural systems. The objective of this study was to compare soil carbon status and temporal changes in topsoil from different 4 year rotations and tillage treatments (i.e., no-till and conventional tillage). Rotation systems were primarily corn and ...
- DOI:
- 10.3390/agronomy10060840
-
http://dx.doi.org/10.3390/agronomy10060840
- Author:
- Mo, Fan; Li, Haibo; Li, Yinghua; Cui, Weina; Wang, Mingshuai; Li, Zhe; Chai, Rui; Wang, Hongxuan
- Source:
- Ecotoxicology and environmental safety 2020 v.195 pp. 110499
- ISSN:
- 0147-6513
- Subject:
- Trifolium pratense, etc ; catalase; chlorosis; enzyme activity; fluorescence microscopes; fluorescence microscopy; genotype; hormesis; leaves; lipid peroxidation; malondialdehyde; microstructure; peroxidase; photosynthesis; phytoremediation; pigments; pollutants; random amplified polymorphic DNA technique; root growth; roots; silver; stems; superoxide dismutase; toxicity; Show all 24 Subjects
- Abstract:
- ... The objective of this research was to evaluate Ag⁺ toxicity in Trifolium pratense L. seedlings subjected to increasing doses of Ag⁺ by determining photosynthetic pigment and malondialdehyde (MDA) contents, microstructure and hereditary substance alterations, changes in activities of antioxidase-superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) as well as the content of total Ag absor ...
- DOI:
- 10.1016/j.ecoenv.2020.110499
-
https://dx.doi.org/10.1016/j.ecoenv.2020.110499
- Author:
- Labuschagne, Johan; Bester, Carien; Pieterse, Petrus J
- Source:
- South African journal of plant and soil = 2020 v.37 no.3 pp. 236-243
- ISSN:
- 2167-034X
- Subject:
- Trifolium pratense, etc ; Dactylis glomerata; Festuca arundinacea; Lolium perenne; Trifolium repens; autumn; botanical composition; cold season; crude protein; digestibility; dry matter content; farms; feed barley; fertilizer rates; irrigation; nitrogen; nitrogen fertilizers; oats; organic matter; pastures; purchasing; spring; winter; Show all 23 Subjects
- Abstract:
- ... Nitrogen effects the productivity, botanical composition and quality of grass-clover pastures. Responses to N fertilisation are area and season specific and must be quantified to ensure optimal economical pasture production. A grass-clover pasture mixture was established under irrigation at Elsenburg Research Farm with the aim of developing nitrogen fertiliser management strategies for grass-clove ...
- DOI:
- 10.1080/02571862.2020.1730457
-
http://dx.doi.org/10.1080/02571862.2020.1730457
- Author:
- Perrone, Sharon; Grossman, Julie; Liebman, Alex; Sooksa-nguan, Thanwalee; Gutknecht, Jessica
- Source:
- Nutrient cycling in agroecosystems 2020 v.117 no.1 pp. 61-76
- ISSN:
- 1385-1314
- Subject:
- Trifolium pratense, etc ; Secale cereale; Vicia villosa; Zea mays; aboveground biomass; annuals; biomass production; cash crops; climate; cover crops; ecotypes; fallow; growing season; legumes; nitrogen; nitrogen fixation; nodulation; organic production; rye; soil quality; sweetcorn; viability; winter; Minnesota; Show all 24 Subjects
- Abstract:
- ... Legume cover crops can play a valuable role in maintaining and increasing soil quality and nitrogen availability, but are infrequently grown in the Upper Midwest due to short growing seasons with minimal management windows; cold, wet springs; and harsh winters. This study was performed to assess the viability of winter annual legume species in northern climates as a potential source of nitrogen (N ...
- DOI:
- 10.1007/s10705-020-10055-z
-
http://dx.doi.org/10.1007/s10705-020-10055-z