Effect of different doses of glyphosate in soybean

S. A. Gomes, F. B. S. Botelho, S. A. C. M. Arantes, A. Santos

Resumo


Abstract: Brazil ranks second in production of conventional soybeans and third in production of transgenic soybeans. The main advantage of transgenic soybean is resistant to the herbicide glyphosate, but the continued use of exaggeration and even of the same herbicide on soybean can significantly decrease acquired resistance. This work aimed to evaluate the effects of different doses of glyphosate can result in soybean. The experiment was conducted in a greenhouse on the Campus of UFMT in Sinop-MT, and evaluated five doses of glyphosate in transgenic soybeans intercropped with two conventional soybeans. The characters were evaluated for phytotoxicity scores and length of the root system. It was found that, regardless of the amount of glyphosate applied occur symptoms of phytotoxicity in conventional and transgenic soybean. Whereas the most damage will be in conventional soybean, and transgenic soybean little affected by the action of the herbicide.

Key words: Glycine max, glyphosate, phytotoxicity


Palavras-chave


Glycine max; glifosato; fitotoxidade

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Referências


ALBRECHT, L.P; ILA, M.R. Manejo de Glyphosate em soja RR e a qualidade das sementes. Informativo Abrates, vol. 20, n. 1,2 p.045-054, 2010.

AMARANTE, JR.O.P.; SANTOS, T.C.R.; BRITO, N.M.; RIBEIRO, M.L. Glifosato: propriedades, toxicidade, usos e legislação. Quica Nova, v.25, p.589-593, 2002.

MELHORAN FILHO, A.L.; MARTINS, D.; PEREIRA, M.R.R; ESPINOSA, W.R. Efeito de glyphosate sobre caracteristicas produtivas em cultivares de soja transgenica e convencional. Biosci. J., Uberldia, v. 26, n. 3, p. 322-333, May/June 2010.

SPADER, V; MAKUCH, E. Associação de herbicidas residuais na dessecação em premergencia de Soja RR. XXVIII Congresso Brasileiro da Cicia das Plantas Daninhas 19 a 23 de julho de 2010 Centro de Convenções Ribeirão Preto SP.




DOI: http://dx.doi.org/10.36560/30201337

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Universidade Federal de Rondonópolis
Avenida dos Estudantes, 5055 - Cidade Universitária
Rondonópolis - MT, 78735-901