Seletividade do herbicida tembotrione à cultura do milheto

Dan, Hugo Almeida; Barroso, Alberto Leão de Lemos; Dan, L.G.M.; Oliveira, Rubem Silvério de; Procópio, S.O.; Freitas, Aloisio; Corrêa, Fábio Mathias

doi:10.1590/s0100-83582010000400012

Cited by 12 publications

(17 citation statements)

References 14 publications

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“…Despite the rapid injuries recovery at 21 DAA, the authors have reported that trends evidenced at 7 DAA were maintained, indicating that applications accomplished in the earlier stages of sorghum crop development have provided the highest levels of crop injury, www.intechopen.com implying that herbicide tolerance increases as plants get older. Similar effects related to tembotrione applications in pearl millet have also been described (Dan et al, 2010c). In pear millet, higher tolerance occurred when tembotrione (75 g ha -1 ) was applied at the beginning of tillering, as compared to prior-tillering.…”

Section: Selectivity Of Tembotrione To Grain Sorghumsupporting

confidence: 69%

Potential Use of Tembotrione (HPPD-Inhibitor Herbicides) in Grain Sorghum

Dan¹,

Barroso²,

Oliveira³

et al. 2012

Weed Control

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Section: Selectivity Of Tembotrione To Grain Sorghumsupporting

confidence: 69%

Potential Use of Tembotrione (HPPD-Inhibitor Herbicides) in Grain Sorghum

Dan¹,

Barroso²,

Oliveira³

et al. 2012

Weed Control

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“…Devido à sua grande adaptação e difusão no bioma dos cerrados, o milheto vem ganhando destaque nos últimos anos, especialmente após o lançamento de híbridos de alto potencial produtivo, oriundos do melhoramento genético (Dan et al, 2010). Além disso, a cultura apresenta boa produção de palhada, constituindose em importante opção para o sistema de plantio direto e na produção de forragem quando plantado em sucessão (Torres et al, 2008).…”

Section: Introductionunclassified

Atividade residual de herbicidas pré-emergentes aplicados na cultura da soja sobre o milheto cultivado em sucessão

Dan

Barroso³

et al. 2011

Planta daninha

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RESUMO -O objetivo deste estudo foi avaliar a atividade residual de herbicidas utilizados no manejo de plantas daninhas em pré-emergência da cultura da soja, bem como verificar seus efeitos sobre o milheto cultivado em sucessão. Utilizaram-se parcelas de 80 m 2 , em delineamento de blocos casualizados, com quatro repetições, em esquema de parcelas subdivididas 5 x 4, correspondendo à aplicação dos herbicidas imazaquin (0,160 kg ha -1 ), diclosulam (0,035 kg ha ) e uma testemunha, aplicados logo após a semeadura do cultivar de soja Msoy-6101. Nas subparcelas, realizou-se a semeadura do milheto, cultivar ADR-7010, em quatro períodos, correspondendo a 0, 40, 80 e 120 dias após a aplicação dos herbicidas (DAA). Durante a condução do ensaio, foram determinados os níveis de intoxicação, estande, altura e massa seca da parte aérea das plantas de milheto. No final do ciclo foi avaliado o rendimento de grãos da cultura. O híbrido de milheto ADR-7010 apresentou elevada sensibilidade com relação à atividade residual dos herbicidas sulfentrazone, diclosulam e imazaquin quando cultivado logo após a aplicação destes. A bioatividade dos herbicidas imazaquin, diclosulam e flumioxazin não foi suficiente para alterar o rendimento de grãos do milheto cultivado em sucessão à soja (120 DAA), mostrando que esse intervalo de tempo é suficiente para dissipação desses herbicidas. Dos herbicidas pré-emergentes avaliados, o sulfentrazone apresentou maior atividade residual, influenciado negativamente o rendimento da cultura durante o intervalo de tempo estudado.Palavras-chave: carryover, sulfentrazone, diclosulam, imazaquin, flumioxazin, Pennisetum glaucum.ABSTRACT -The objective of this study was to evaluate the persistence of herbicides applied in pre-emergence in soybean crop and the effects of these herbicides on pearl millet grown in succession. The herbicides imazaquin (0.160 kg ha -1 ), diclosulam (0.035 kg ha -1 ), sulfentrazone (0.600 kg ha -1 ), and fumioxazin (0.050 kg ha -1 ) were used immediately after sowing of soybean Msoy-6101, in plots of 80 m 2 , divided into sub-plots of 20 m 2 (5 x 4 m). A randomized block design with four replications was used in a split-plot scheme 5 x 4. In the sub-plots, pearl millet hybrid ADR-7010 was sown in four periods after herbicide application, corresponding to 0, 40, 80 and 120 days after herbicide application (DAA). Pear millet injury, stand, height and dry biomass of the plant were evaluated at 7, 15, and 28 days after emergence; crop grain yield was evaluated at the end of the cycle. Pearl millet hybrid ADR-7010 showed high sensitivity to the residual activity of sulfentrazone, imazaquin, and diclosulam when grown immediately after herbicide application. The bioactivity of imazaquin, diclosulam, and flumioxazin was not sufficient to affect grain yield of millet grown after soybean (120 DAA), suggesting that this interval is sufficiently long for dissipation of these herbicides. Among the pre-emergent herbicides, sulfentrazone showed longer residual activity, negatively influencing the c...

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“…did not influence yield components or the biometrics of maize plants. On the other hand, Dan et al (2010) observed the importance of forage management in maize productivity and that competition among intercropped species should be suppressed.…”

Section: /8mentioning

confidence: 99%

“…Launched in Brazil for post-emergence use in maize crops, Tembotrione has shown a satisfactory performance in weed control, especially of grasses (Dan et al, 2010). However, there are few studies on the potential use of this herbicide in intercropping systems.…”

Section: Introductionmentioning

confidence: 99%

Management of the consortium between maize and Urochloa brizantha with tembotrione subdoses

Martins¹,

Tavares²,

Jakelaitis³

et al. 2018

Agraria

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Consortium between maize crop and forage species managed with herbicide reduce doses have been widely used in the crop integration system for pasture formation. However, answers to this management in both maize and forage have presented different responses. In this research, evaluated the corn productivity, weed population dynamics, and yield and quality characteristics of pasture the Urochloa brizantha in three cuts when it was formed after the harvest of corn treated with tembotrione subdoses. The subdoses tested were: 0; 3.78; 7.56; 15.12 e 22.68 g ha-1. Corn and forage were also tested in monocultures. In a consortium, weed species Alternanthera tenella, Commelina benghalensis and Galinsoga parviflora were of relative importance (IR) and were not controlled by the herbicide. Yield of maize grains was not affected by forage, but forage yield (YF) of grass was reduced by maize. The tembotrione subdoses affected YF both in maize intercropped pastures and in pasture formed during the rainy season. The values of ethereal extract and crude protein in the pasture formed were influenced by the herbicide management.

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Seletividade do herbicida tembotrione à cultura do milheto

Cited by 12 publications

References 14 publications

Potential Use of Tembotrione (HPPD-Inhibitor Herbicides) in Grain Sorghum

Potential Use of Tembotrione (HPPD-Inhibitor Herbicides) in Grain Sorghum

Atividade residual de herbicidas pré-emergentes aplicados na cultura da soja sobre o milheto cultivado em sucessão

Management of the consortium between maize and Urochloa brizantha with tembotrione subdoses

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