Hormesis with glyphosate depends on coffee growth stage

Anais da Academia Brasileira de Ciências

Leonardo B. De Carvalho¹  Pedro L.c.a. Alves¹  Stephen O. Duke¹ 

关键词: Coffea arabica L.;    weed management;    herbicide;    spray drift;    stimulatory effect;    Coffea arabica L.;    manejo de plantas daninhas;    herbicida;    deriva simulada;    efeito estimulante;   

DOI  :  10.1590/S0001-37652013005000027

来源: SciELO

【 摘 要 】

Weed management systems in almost all Brazilian coffee plantations allow herbicide spray to drift on crop plants. In order to evaluate if there is any effect of the most commonly used herbicide in coffee production, glyphosate, on coffee plants, a range of glyphosate doses were applied directly on coffee plants at two distinct plant growth stages. Although growth of both young and old plants was reduced at higher glyphosate doses, low doses caused no effects on growth characteristics of young plants and stimulated growth of older plants. Therefore, hormesis with glyphosate is dependent on coffee plant growth stage at the time of herbicide application.

【 授权许可】

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