Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Planta Daninha (3) Repositório Alice (1) Autor AGOSTINETTO, D. (1) AGOSTINETTO,D. (1) Avila,Luis A. (1) B. Piveta,Leonard (1) BRAZ,G.B.P. (1) CONSTANTIN,J. (1) MAZON, A. S. (1) MAZON,A.S. (1) Noldin,José A. (1) OLIVEIRA JR,R.S. (1) Oliveira,Claudia (1) P. Refatti,João (1) PADOVESE,J.C. (1) PIASECKI, C. (1) PIASECKI,C. (1) Roma-Burgos,Nilda (1) TAKANO,H.K. (1) VARGAS, L. (1) VARGAS,L. (1) Mais... Palavra-chave Weed biology (4) Herbicide resistance (2) Integrated weed management (2) Biomass allocation (1) Climate change (1) Conyza blakei (1) Conyza bonariensis (1) Ecology (1) Eleusine indica (1) Erva Daninha (1) Herbicida (1) Relative growth (1) Soil seed bank (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Artigo de periódico (1) Ano 2020 (1) 2019 (2) 2016 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Glyphosate resistance affect the physiological quality of Conyza bonariensis seeds. Repositório Alice PIASECKI, C.; MAZON, A. S.; AGOSTINETTO, D.; VARGAS, L.. ABSTRACT - High seed production and dispersal capacity and glyphosate resistance are among the main factors that have made hairy fleabane (Conyza bonariensis) one of the most important and dispersed weeds in the world. Herbicide-resistant weeds populations may have fitness cost due to molecular, physiological, and biochemical changes. This study aimed to evaluate the physiological quality of seeds of Conyza spp. and determine whether glyphosate resistance causes fitness costs for resistant biotypes. Seeds from six hairy fleabane biotypes, three glyphosate-resistant and three -sensitive, with a resistance factor average of 11.7 were studied. Among the studied biotypes, five were identified as C. bonariensis and one as C. blakei. Seed analyses were performed... Tipo: Artigo de periódico Palavras-chave: Herbicida; Erva Daninha; Herbicide resistance; Integrated weed management; Weed biology; Conyza bonariensis. Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1115742 Glyphosate Resistance Affect the Physiological Quality of Conyza bonariensis seeds Planta Daninha PIASECKI,C.; MAZON,A.S.; AGOSTINETTO,D.; VARGAS,L.. ABSTRACT: High seed production and dispersal capacity and glyphosate resistance are among the main factors that have made hairy fleabane (Conyza bonariensis) one of the most important and dispersed weeds in the world. Herbicide-resistant weeds populations may have fitness cost due to molecular, physiological, and biochemical changes. This study aimed to evaluate the physiological quality of seeds of Conyza spp. and determine whether glyphosate resistance causes fitness costs for resistant biotypes. Seeds from six hairy fleabane biotypes, three glyphosate-resistant and three -sensitive, with a resistance factor average of 11.7 were studied. Among the studied biotypes, five were identified as C. bonariensis and one as C. blakei. Seed analyses were performed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbicide resistance; Integrated weed management; Weed biology; Soil seed bank; Conyza blakei. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100157 Growth, Development and Seed Production of Goosegrass1 Planta Daninha TAKANO,H.K.; OLIVEIRA JR,R.S.; CONSTANTIN,J.; BRAZ,G.B.P.; PADOVESE,J.C.. ABSTRACT E. indica is one of the most problematic weeds in the world because it is present in almost every continent, and there are reports of multiple resistance to herbicides by some biotypes. The objective of this paper was to analyze the growth, the development and the production of this plant's seeds, in order to generate information about its biology that can be useful for management. The experiment was carried out in a greenhouse from May to September 2015. Sixteen samples were taken during the development cycle of the plant: 3, 10, 17, 24, 31, 38, 45, 52, 59, 66, 73, 80, 87, 94, 101 and 108 days after emergence (DAE). The response variables were based on a leaf area and dry matter of each one of the parts of the plant and the number of seeds... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eleusine indica; Relative growth; Biomass allocation; Weed biology. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200249 Response of imidazolinone-resistant and -susceptible weedy rice populations to imazethapyr and increased atmospheric CO2 Planta Daninha B. Piveta,Leonard; Roma-Burgos,Nilda; Noldin,José A.; P. Refatti,João; Oliveira,Claudia; Avila,Luis A.. Abstract Background: Weedy rice (Oryza sativa L.) is the main weed of rice crop. The high genetic variability of weedy rice contributes to the high phenotypic diversity between biotypes and different responses to environmental stress. Objective: The present study aimed to evaluate the response of imidazolinone-susceptible and -resistant weedy rice populations to increased atmospheric [CO2]. Methods: The experiment was arranged in a complete randomized design with six replications. The treatments included two [CO2] concentration (700 and 400 μmol mol-1) and three treatments: resistant genotype (IMI-resistant) treated with imazethapyr; resistant genotype without imazethapyr, and a susceptible genotype without imazethapyr. Results: The IMI-resistant... Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Ecology; Weed biology. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100328 Registros recuperados: 4 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco