Estudo da toxicidade crônica do herbicida glifosato em sementes de milho, quiabo e rúcula
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Data
2011-06
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Resumo
Glyphosate is an agrochemical from the group of phosphonates, which is widely used as a herbicide. Although it
kills almost any plant, it can be used to eliminate weeds during the growth of crops that are resistant to
glyphosate. This research aimed to evaluate the toxicological effects of the herbicide in a study using as test
organism seeds of maize (Zea mays), okra (Abelmoschus esculentus (L.) Moench) and arugula (Eruca sativa).
The toxicological testing was to use a paper towel dampened with a sample of glyphosate and twenty seeds
evenly distributed in containers with lids, left in a dry and airy place, and watered once a day for 5 days. It was
possible to check the toxic effect of glyphosate for corn seeds at concentrations above 90 mg.L-1, for okra seeds
at concentrations above 75 mg L-1 and arugula seeds in concentrations above 2 mg L - 1. Thus it was concluded
that the seeds studied showed a high sensitivity with the possibility to be applied in toxicity testing, representing
a simple and low cost.
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Palavras-chave
Glifosato, Toxidade, Sementes, Glyphosate, Toxicity, Seeds
Citação
REBESSI, Ana Cláudia et al. Estudo da toxicidade crônica do herbicida glifosato em sementes de milho, quiabo e rúcula. Engenharia Ambiental: pesquisa e tecnologia, Espírito Santo do Pinhal, v. 8, n. 2, p. 17-27, abr./jun. 2011.