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1. Assessing chemical control options and their effects on the lesser clover leaf weevil (Hypera nigrirostris) and red clover pollinators in Western Canada

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

2. Comment on the published data concerning the identification of biochanin A and prunetin by LC/ESI-MS

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

3. The Settlement of Erigeron annuus (L.) Pers. and Analysis of the Reasons for Reproductive Success

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

4. Pollination effectiveness of European honeybee, Apis mellifera (Hymenoptera: Apidae), in an Oriental persimmon, Diospyros kaki (Ericales: Ebenaceae), orchard

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

5. Genetic and Phenotypic Diversity of Rhizobia Isolated from Trifolium rubens Root Nodules

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

6. The influence of salinization on seed germination and plant growth under mono and polyculture

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

7. Impacts of Smooth Pigweed (Amaranthus hybridus) on Cover Crops in Southern Ontario

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

8. Identification of QTLs for resistance to powdery mildew (Erysiphe) in red clover (Trifolium pratense)

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

9. Evaluation of the Rhizosphere Contribution to the Environmental Fate of the Herbicide Prometryn

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

10. Designing a Sustainable Temporary Grassland System by Monitoring Nitrogen Use Efficiency

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

11. Prevalence of positive reactions in intradermal and IgE serological allergy tests in dogs from South Australia, and the subsequent outcome of allergen‐specific immunotherapy

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

12. Preparation of DESIGNER extracts of red clover (Trifolium pratense L.) by centrifugal partition chromatography

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

13. Identification of Founding Accessions and Patterns of Relatedness and Inbreeding Derived from Historical Pedigree Data in a Red Clover Germplasm Collection in New Zealand

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

14. Field Evaluation of Potato N Needs Following Forage Legumes

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

15. Deep learning-based detection of seedling development

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

16. Effect of legume and legume-festulolium mixture and their mulches on cereal yield and soil quality in organic farming

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

17. Temporal Change of Soil Carbon on a Long-Term Experimental Site with Variable Crop Rotations and Tillage Systems

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

18. Toxicity of Ag+ on microstructure, biochemical activities and genic material of Trifolium pratense L. seedlings with special reference to phytoremediation

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

19. Effect of nitrogen fertilisation during the cool season on daily growth rate, botanical composition and selected nutritive characteristics of a mixed grass-clover pasture in the Winelands sub-region of the Western Cape

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

20. Nitrogen fixation and productivity of winter annual legume cover crops in Upper Midwest organic cropping systems

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