Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 9
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean Planta Daninha
NUNES,A.L.; LORENSET,J.; GUBIANI,J.E.; SANTOS,F.M..
ABSTRACT: A 3-year field study was conducted to assess the potential for using pre-emergent (PRE) herbicides tank mixed with glyphosate as a means of controlling weed species in soybean. In 2011/12, 2012/13 and 2013/14 growing sessions soybean cultivar Brasmax Apollo RR was planted under residues of rye. The herbicide treatments glyphosate (gly) (1,296 g a.i. ha-1), gly + S-metolachlor (1,296 + 1,920), gly + imazaquin (1,296 +161), gly + pendimethalin (1,296 + 1,000), gly + metribuzin (1,296 + 480), gly + 2.4-D amine (1,296 + 1,209) was applied in pre-emergence (PRE) over rye crop residues two days before soybean sowing. In addition, full season weed-free and weedy control plots were included. Gly + S-metolachlor and gly + pendimethalin reduced the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; 2.4-D; Metribuzin; S-metolachlor; Conyza spp.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100239
Imagem não selecionada

Imprime registro no formato completo
Ação de herbicidas sobre o crescimento de estirpes de Rhizobium tropici Planta Daninha
Santos,J.B.; Silva,A.A.; Costa,M.D.; Jakelaitis,A.; Vivian,R.; Santos,E.A..
O objetivo deste trabalho foi avaliar o crescimento das estirpes de Rhizobium tropici BR 322 e BR 520, utilizadas como inoculantes na cultura do feijoeiro no Brasil, em meio de cultura à base de manitol e extrato de levedura (YM) adicionado de diferentes herbicidas (bentazon, metolachlor, imazamox, fluazifop-p-butil, fomesafen e paraquat). Os herbicidas fluazifop-p-butil e fomesafen foram avaliados puros e em mistura comercial, em concentrações variando entre 0,0 e 49,23 mg L-1. O crescimento das estirpes de Rhizobium foi avaliado em espectrofotômetro ao longo de 100 horas de incubação, por meio da leitura da densidade ótica, a 560 nm, sendo, posteriormente, convertido em unidades formadoras de colônia por mL. Observou-se que o paraquat foi o herbicida com...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bentazon; Fluazifop-p-butil; Fomesafen; Imazamox; S-metolachlor; Paraquat.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582006000300006
Imagem não selecionada

Imprime registro no formato completo
Avaliação de herbicidas para dois cultivares de mandioca Planta Daninha
Biffe,D.F; Constantin,J; Oliveira Jr,R.S; Rios,F.A; Franchini,L.H.M; Gemelli,A; Arantes,J.G.Z; Raimondi,M.A; Blainski,E.
É importante avaliar a tolerância de variedade de mandioca a novas alternativas de controle químico, com o intuito de ampliar as opções disponíveis. Este trabalho teve como objetivo avaliar a seletividade de herbicidas aplicados em pré-emergência, para duas importantes variedades de mandioca cultivadas no Estado do Paraná. Os herbicidas e respectivas doses (g i.a. ha-1) avaliadas foram: diuron (400 e 800), metribuzin (360 e 720), isoxaflutole (60), atrazine (720), S-metolachlor (1.920) e as misturas ametryn + clomazone (1.350+1.900), ametryn+trifluralin (1.500+1.350), isoxaflutole+metribuzin (60+320), isoxaflutole+diuron (60+400), combinados com uso de uma testemunha dupla adjacente a cada tratamento. Os cultivares utilizados neste trabalho foram Fécula...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Variedades; Diuron; Isoxaflutole; Metribuzin; Atrazine; S-metolachlor.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000400014
Imagem não selecionada

Imprime registro no formato completo
Bidens pilosa L. (Asteraceae) control in sunflower with residual herbicides. Repositório Alice
BRIGHENTI, A. M.; VAROTTO, Y. V. G..
Abstract One of the most damaging species in sunflower crops in Brazil is the hairy beggartick (Bidens pilosa L). The large number of seeds, the various vegetative cycles during the year, the staggered germination and the scarcity of selective and effective herbicides to control this weed in sunflower are some of attributes that hinder the control of hairy beggartick populations. Two experiments were carried out to evaluate the control of hairy beggarticks, as well as sunflower tolerance to herbicides. The treatments were as follows: S-metolachlor (1,200 and 2,400 g ai ha-1), flumioxazin (60 and 120 g ai ha-1), and sulfentrazone (150 and 300 g ai ha-1) and two controls (weedy and weed-free check). The selectivity of the herbicides was higher at low doses....
Tipo: Artigo de periódico Palavras-chave: S-metolachlor; Helianthus Annuus; Flumioxazin; Sulfentrazone; Weeds.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118205
Imagem não selecionada

Imprime registro no formato completo
Control of Italian ryegrass and Alexandergrass in corn using different corn sowing date, pre- and post-emergent herbicides. Repositório Alice
PIASECKI, C.; OVEJERO, R. F. L.; PICOLI JUNIOR, G. J.; BELLINI, L. F.; AGOSTINETTO, D.; VARGAS, L..
Glyphosate-resistant (GR) Italian ryegrass (LOLMU) and Alexandergrass (URPLA) are troublesome weeds in corn cropping systems in Southern Brazil. The emergence pattern of those weeds is not uniform and may change according to the season?s environmental characteristics. Also, herbicide resistance has been diminishing the success of the weed control programs. The objectives of this study were to evaluate the influence of corn-sowing date on LOLMU and URPLA densities and their control provided by pre- and post-emergent herbicides. Field trials were conducted in two crop seasons in Southern Brazil consisting of three corn sowing date (August, September, and October) and the application of atrazine + S-metolachlor (residual) in corn pre-emergence in different...
Tipo: Artigo de periódico Palavras-chave: Residual; Herbicide resistance management; S-metolachlor; Atrazine; Integrated weed management.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129874
Imagem não selecionada

Imprime registro no formato completo
Selectivity of clomazone and S-metolachlor applied after cassava pruning Planta Daninha
Costa,N.V.; Andrade,D.C.; Sontag,D.A.; Scariot,C.A.; Tsuzuki,L.H..
The objective of this work was to evaluate the selectivity of clomazone in two formulations and S-metolachlor applied on shoots of different sizes after pruning of 'Baianinha' cassava. The experiment was arranged in a randomized block design in a factorial 5 x 2 (5 treatments x 2 sizes of shoots after pruning - 10 and 33 cm) with four replications. The herbicides evaluated were: clomazone (encapsulated suspension - 900 g h-1), clomazone (encapsulated suspension - 1,080 g ha-1), clomazone (emulsifiable concentrate 900 g ha-1), S-metolachlor (1,920 g ha-1) and an untreated control. During the experiment, all plots were kept free of weed interference by hand weeding. It was concluded that both the formulations of clomazone and S-metolachlor were selective...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Microencapsulated; Weed; Clomazone; S-metolachlor.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400024
Imagem não selecionada

Imprime registro no formato completo
Seletividade dos herbicidas S-metolachlor e alachlor para o feijão-carioca Planta Daninha
Lamego,F.P; Basso,C.J; Vidal,R.A; Trezzi,M.M; Santi,A.L; Ruchel,Q; Kaspary,T.E; Gallon,M.
O feijoeiro é uma cultura de ciclo vegetativo curto, bastante sensível à interferência de plantas daninhas. O objetivo deste trabalho foi avaliar a eficácia de herbicidas aplicados em pré-emergência no controle de Digitaria sanguinalis na cultura do feijão-carioca, bem como determinar a seletividade deles para a cultura. Os tratamentos avaliados foram: S-metolachlor (960, 1.440 e 1.920 g ha-1), alachlor (1.440, 1.920 e 2.400 g ha-1) e duas testemunhas sem aplicação de herbicidas (com e sem capinas). Avaliações visuais de controle para D. sanguinalis e fitotoxicidade para o feijão foram realizadas aos 20 e 40 dias após a emergência (DAE). Os herbicidas, em todas as doses avaliadas, foram eficientes no controle de D. sanguinalis. Aos 40 DAE, observou-se...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alachlor; S-metolachlor; Digitaria sanguinalis; Fitotoxicidade; Componentes da produtividade.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000400018
Imagem não selecionada

Imprime registro no formato completo
Simulated conservative tracer as a proxy for S-metolachlor concentration predictions compared to POCIS measurements in Arcachon Bay ArchiMer
Fauvelle, Vincent; Belles, Angel; Budzinski, Helene; Mazzella, Nicolas; Plus, Martin.
The work presented here aims at comparing monitoring of S-metolachlor, the major pesticide in use in the Arcachon Bay (South West of France, transitional coastal area), by chemical analysis (monthly passive sampling) and contaminant dissipation modeling from sources (Mars-2D model). The global strategy consisted in i) identifying the major sources of S-metolachlor to the Bay, ii) monitoring these sources for 12 months, and iii) comparing modeled data in the Bay based on measured inputs, to chemical measurements made inside the Bay along with the 12-month source monitoring. Results first showed that the major S-metolachlor surface inputs to the Arcachon Bay are mainly from one single source. Modeled and measured data were in good agreement at 5 sites in the...
Tipo: Text Palavras-chave: Passive sampling; POCIS; Mars-2D; Contaminant; Monitoring; Coastal area; Pesticides; S-metolachlor.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00445/55627/57334.pdf
Imagem não selecionada

Imprime registro no formato completo
Soybean plant osmotic and oxidative stress as affected by herbicide and salinity levels in soil Planta Daninha
Benedetti,Lariza; Scherner,Ananda; C. Cuchiara,Cristina; Moraes,Ítalo L.; A. Avila,Luis; Deuner,Sidnei.
Abstract Background: Soybean cultivation has been an option used to diversify the production system and perform herbicide rotation in irrigated rice crops in the lowland soils of the Rio Grande do Sul State, southern Brazil. However, elevated salinity levels have been detected in these soils that can inhibit plant growth due to the reduction of the osmotic potential of the soil solution and can causes toxicity. The combination of stress factors in the plantation areas can intensify deleterious effects, such as changes in salinity associated with herbicides that trigger oxidative stress in crops. Objective: This study aimed to evaluate osmotic potential, cell damage, and enzyme activities of the antioxidant metabolism on soybean after treatment with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Sulfentrazone; S-metolachlor; Antioxidant enzymes; Saline stress; Cellular damage.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100301
Registros recuperados: 9
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

Valid HTML 4.01 Transitional