Giant sensitiveplant interference in cassava

Alabi, B. S.; Ayeni, A.O.; Agboola, A. A.; Majek, Bradley A.

doi:10.1614/0043-1745(2001)049[0171:gsiic]2.0.co;2

Cited by 19 publications

(23 citation statements)

References 9 publications

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“…a produção de raízes em 89,8-100% (Peressin et al 1998, Alabi et al 2001, Chikoye et al 2001, Johanns & Contiero 2006, Albuquerque et al 2008. Desta maneira, o controle químico apresenta-se como excelente alternativa para o manejo das plantas daninhas, na cultura da mandioca, por permitir a intervenção em grandes áreas, com pouca dependência de mão de obra e rapidez na aplicação (Silva et al 2012, Silveira et al 2012.…”

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Seletividade e eficiência de herbicidas aplicados em pré-emergência na cultura da mandioca

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Costa

Bosquese

et al. 2013

Pesqui. Agropecu. Trop.

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O manejo químico das plantas daninhas destaca-se como ferramenta importante para a garantia de altos rendimentos da mandiocultura. Este estudo objetivou avaliar a seletividade e eficiência de herbicidas, aplicados em pré-emergência, na cultura da mandioca cv. 'Cascuda'. O delineamento experimental utilizado foi o de blocos ao acaso, com dez tratamentos e quatro repetições. Os tratamentos utilizados foram: clomazone (900 g ha-1 e 1.080 g ha-1), flumioxazin (60 g ha-1), sulfentrazone (600 g ha-1), S-metolachlor (1.920 g ha-1), clomazone + flumioxazin (900 + 50 g ha-1), clomazone + sulfentrazone (900 + 500 g ha-1) e clomazone + S-metolachlor (900 + 1.440 g ha-1), além de uma testemunha sem capina e outra capinada. A comunidade de plantas daninhas foi composta por 9 famílias e 12 espécies, destacando-se as famílias Asteraceae e Poaceae, com o maior número de espécies. Os herbicidas apresentaram-se seletivos às plantas de mandioca cv. 'Cascuda', quando aplicados em pré-emergência. Os herbicidas foram eficientes no controle das plantas daninhas, sendo que o flumioxazin (60 g ha-1), sulfentrazone (600 g ha-1), S-metolachlor (1.920 g ha-1) e as misturas clomazone + flumioxazin (900 + 50 g ha-1), clomazone + sulfentrazone (900 + 500 g ha-1) e clomazone + S-metolachlor (900 + 1.440 g ha-1) apresentaram maior efeito residual.

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Section: Key-wordsunclassified

Seletividade e eficiência de herbicidas aplicados em pré-emergência na cultura da mandioca

Scariot

Costa

Bosquese

et al. 2013

Pesqui. Agropecu. Trop.

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“…The level of disturbance of the weeds community with the cassava culture may decrease the production of roots and starch from 89.8 to 100% (Peressin, et al, 1998;Alabi et al, 2001;Chikoye et al, 2001;Johanns & Contiero, 2006;Albuquerque et al, 2008;Biffe et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Selectivity of clomazone and S-metolachlor applied after cassava pruning

et al. 2013

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-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 when applied on both the shoot sizes evaluated. However, the application of S-metolachlor on 33 cm shoots gave higher selectivity to 'Baianinha' cassava plants. Keywords:Manihot esculenta, microencapsulated, weed, clomazone, S-metolachlor. RESUMO -Objetivou-se neste estudo avaliar a seletividade do clomazone em duas formulações e do S-metolachlor aplicados em diferentes tamanhos de brotos depois da poda da mandioca Baianinha. O delineamento experimental utilizado foi o de blocos ao acaso, em esquema fatorial 5 x 2 (5 tratamentos x 2 tamanhos de brotos após a poda -10 e 33 cm), com quatro repetições. Os herbicidas

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“…Whereas the cassava cycle can reach up to two years, the management problem of weeds becomes an important factor because it may require several management interventions until harvest (Alabi et al, 2001;Oliveira Jr. et al, 2001). …”

Section: Introductionmentioning

confidence: 99%

Application of Sulfentrazone in Stages of Germination of IAC 90 Cassava Cuttings in Clay Soils and Sandy

et al. 2015

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-Weeds interfere dramatically in the productive potential of cassava; however, information regarding herbicides that are selective to crops is still scarce. Thus, the aim in this study was to assess the initial growth of IAC 90 cassava plants after the application of sulfentrazone at different stages of germination of cassava in clayey and sandy soils. Three experiments were simultaneously deployed: the first experiment consisted in the application of sulfentrazone in the non-germinated stage of cassava cuttings; the second one in the stage of germinated cassavas cuttings (0.9 cm shoots); and the third one in applications in the stage of cassava cuttings with buds emerging (6.5 cm shoots and emerging from the soil). For each experiment the experimental design in randomized blocks was used in the 2 x 5 factorial arrangement with four replications. The factors were composed of two soils (sandy and clayey) and five doses of sulfentrazone (0, 250, 500, 750 and 1,000 g ha -1). It was found that depending on the herbicide dose, development stage of the buds of cassava cuttings and the type of soil, damage can occur in the initial development of the IAC 90 cassava plants. The greatest potential of sulfentrazone selectivity has occurred in applications in the nongerminated cassava cuttings stage and in doses lower than 500 g ha -1in the clayey soil.Keywords: herbicide, Manihot esculenta, protox inhibitor, selectivity. RESUMO -As plantas daninhas interferem drasticamente no potencial produtivo da mandioca

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Giant sensitiveplant interference in cassava

Cited by 19 publications

References 9 publications

Seletividade e eficiência de herbicidas aplicados em pré-emergência na cultura da mandioca

Seletividade e eficiência de herbicidas aplicados em pré-emergência na cultura da mandioca

Selectivity of clomazone and S-metolachlor applied after cassava pruning

Application of Sulfentrazone in Stages of Germination of IAC 90 Cassava Cuttings in Clay Soils and Sandy

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