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	Provedor de dados Planta Daninha (3) Autor CHIAPINOTTO,D.M. (3) SCHAEDLER,C.E. (3) ANDRES,A. (1) FERNANDES,J.P.S. (1) LAMEGO,F.P. (1) LIMA,P.C. (1) LUBIAN,W. (1) NUNES,F.S. (1) Mais... Palavra-chave Oryza sativa (3) Cyperus iria (1) Dose-response curve (1) Identification (1) Intraspecific competition (1) Low light (1) Phytosociology (1) Resistant biotype (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2020 (1) 2018 (1) 2017 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última CROSS-RESISTANCE OF RICE FLATSEDGE TO ALS-INHIBITING HERBICIDES Planta Daninha CHIAPINOTTO,D.M.; SCHAEDLER,C.E.; FERNANDES,J.P.S.; ANDRES,A.; LAMEGO,F.P.. ABSTRACT Cyperus iria (CYPIR) is one of the main weeds in irrigated rice crops. The intense chemical control with acetolactate synthase (ALS) inhibiting herbicides favors the selection of cross-resistance. This study aimed to evaluate the crossresistance of CYPIR to ALS-inhibiting herbicides in irrigated rice in Rio Grande do Sul. Two experiments arranged in a factorial scheme, in a completely randomized design, with four replications were conducted. Experiment I consisted of resistant (CYPIR-R) and susceptible (CYPIR-S) biotypes and ALS-inhibiting herbicide doses: imazethapyr (106 g a.i. ha-1); pyrazosulfuron-ethyl (20 g a.i. ha-1); penoxsulam (36 g a.i. ha-1) and, as an alternative herbicide, bentazone (960 g a.i. ha-1); corresponding to 0; 1/16; 1/8;... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Cyperus iria; Dose-response curve; Resistant biotype. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100266 Relative Competitiveness Between Cultivated and Weedy Rice under Full and Low Light Planta Daninha SCHAEDLER,C.E.; LUBIAN,W.; LIMA,P.C.; CHIAPINOTTO,D.M.. ABSTRACT: Cultivated and weedy rice biotypes exhibit morphophysiological variations under low light, affecting competition between plants. The aim of this study was to assess relative competitiveness between cultivated and weedy rice under full and low light. Three experiments were conducted in a greenhouse, using a completely randomized design with four repetitions. The treatments in the experiment I were arranged in additive series while in the experiments II and III treatments were arranged in replacement series. Experiments II and III were carried out concomitantly to assess coexistence between the rice cultivar and weedy rice. The treatments consisted of different plants proportions: 100:0 (cultivated rice monoculture), 75:25, 50:50, 25:75 and 0:100... Tipo: Info:eu-repo/semantics/article Palavras-chave: Intraspecific competition; Oryza sativa; Low light. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100239 Weed Phytosociological Survey in Irrigated Rice Planta Daninha NUNES,F.S.; SCHAEDLER,C.E.; CHIAPINOTTO,D.M.. ABSTRACT: The phytosociological method helps evaluate the vegetation composition. The objective of this study was to identify and quantify the main weed species present in irrigated rice. The phytosociological survey was carried out in three mainly rice monoculture, Clearfield® technology using properties in Itaqui-RS, between 2013 and 2014. For each property and period, a ½ ha representative area was selected and 10 random samples were collected, using a quadrat square of 1 m2. The sample colletion was conducted in two periods of time: during the irrigated rice crop initial growth and during the cereal’s pre-harvesting phase. All collected plants were identified and counted, allowing for their frequency, relative frequency, density, relative density,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytosociology; Oryza sativa; Identification. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100245 Registros recuperados: 3 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