Results 1 to 10 of about 9,333 (217)
Genetic variation of Amaranthus retroflexus L. and Chenopodium album L. (Amaranthaceae) suggests multiple independent introductions into Iran [PDF]
Frontiers in Plant Science, 2023 Amaranthus retroflexus L. and Chenopodium album L. (Amaranthaceae) are weedy plants that cause severe ecological and economic damage. In this study, we collected DNA from three different countries and assessed genetic diversity using inter-simple ...
Shiva Hamidzadeh Moghadam +3 more
doaj +2 more sources
Planta Daninha, 1999 Fez-se o levantamento da flora infestante na lavoura do milho "safrinha" nas duas principais regiões de plantio no Estado de São Paulo, em 1995. Foram visitadas 85 lavouras na Região do Médio Vale do Paranapanema e 29 na Região Norte.
Aildson P. Duarte, Robert Deuber
doaj +1 more source
Competição de espécies de Amaranthus com plantas de feijoeiro [PDF]
, 2008 Weeds compete with field crops mainly for water, light and nutrients, and this competition is among other factors, a function of the occurrence of weed density, and the intrinsic competitive ability of each vegetal species. The objective of this research
CARVALHO, Saul Jorge Pinto de +1 more
core +3 more sources
WEED INFESTATION IN DIFFERENT FARMING SYSTEMS [PDF]
Journal of Central European Agriculture, 2002 The aim of this work was to investigate the influence of ecological and conventional farming systems on weed seedbank and actual weed infestation of winter wheat at agricultural farms Sebechleby, Plavé Vozokany and Dačov Lom.
MAGDALENA LACKO-BARTOŠOVÁ, M KROŠLÁK
doaj
Acta Agrobotanica, 2016 Field studies were carried out in 1989–1995 and 2006–2012 on plantations of sugar beet (Beta vulgaris L. subsp. vulgaris). During this period, 542 phytosociological relevés were made using the Braun-Blanquet method.
Krzysztof Domaradzki +1 more
doaj +1 more source
New data on the distribution of Amaranthus retroflexus and Brassica juncea in Mongolia
Труды по прикладной ботанике, генетике и селекции, 2020 A study of the Mongolian flora and a survey of the herbarium collections of the Institute of General and Experimental Biology, Mongolian Academy of Sciences, conducted in 2019, provided new information on the geographical distribution of Amaranthus ...
V. I. Dorofeyev, Е. Ganbold
doaj +1 more source
The Biology of Canadian Weeds. 126. \u3cem\u3eAmaranthus albus\u3c/em\u3e L., \u3cem\u3eA. blitoides\u3c/em\u3e S. Watson and \u3cem\u3eA. blitum\u3c/em\u3e L. [PDF]
, 2003 A review of biological information is provided for three species of the genus Amaranthus: A. albus L., A. blitoides S. Watson and A. blitum L. The last species has been revised taxonomically and a new subspecies for Canada is presented—A.
Costea, Mihai, Tardif, François J.
core +1 more source
Relative fitnes of herbicide-resistant and susceptible biotypes of weeds [PDF]
, 1994 Au cours des dernières années, il y a eu une augmentation rapide du nombre de mauvaises herbes (plus de 100) signalées comme étant résistantes aux herbicides, de même qu'une augmentation du nombre de groupes d'herbicides auxquels la résistance a évolué ...
Black, L.D., Warwick, S.I.
core +1 more source
Chemical Constituents of Amaranthus retroflexus [PDF]
Botanical Gazette, 1919 1. There is a large amount of nitrate in the organs of A. retroflexus. The stem and branches are the primary nitrate storage organs. The rate of nitrate absorption increases with the aging of the plant, perhaps partly being due to the development of the root system with numerous branching rootlets, increasing the radius of the feeding area from a few ...
openaire +1 more source
Fendioxypyracil, a new and systemic PPO‐inhibiting herbicide for X‐spectrum weed control
Pest Management Science, EarlyView.This graphical abstract presents the discovery and synthesis of PPO herbicide structures with a central pyridine core, showing molecular conformations, dose–response inhibition curves for PPO1 and PPO2, and comparative weed and grass control efficacy of fendioxypyracil versus other herbicides in greenhouse and field trials.
Tobias Seiser +8 more
wiley +1 more source