TREATMENT WITH FLUAZIFOP-P-BUTYL HERBICIDE INDUCES OXIDATIVE STRESS IN PHASEOLUS VULGARIS L.

Abstract

Fluazifop-p-butyl is an aryloxyphenoxy-propionate herbicide used for broad-spectrum weed control in Phaseolus vulgaris and other legume crops. In this study, field experiment was conducted to evaluate some physiological responses of Phaseolus vulgaris to herbicide treatment. Parameters measured includes: whole plant biomass, chlorophyll content, lipid peroxidation, relative water content of the leaves, carbohydrate content of the leaves, and antioxidant enzymes activities. The results showed that fluazifop-P-butyl significantly decreased the plant biomass, relative water content of the leaves, total chlorophyll and carbohydrate contents of the treated plant compared with the control. In contrast, there was a significance increase in malondialdehyde level as well as activities of antioxidant enzymes. The results of this work showed that herbicides caused physiological disorders in non-target plants by inducing oxidative stress that may lead to poor growth and yield.