In-vitro Studies on Tafgor (Dimethoate 30% EC) on leguminous plants

Abstract

The present investigation carried out at Botany department Jijamata College Bhende. To study the effect of tafgor on seed germination and photosynthetic pigment of Vigna radiata L. and Vigna aconitifolia L. During the study various concentrations (control,0.1%,0.2%,0.3%,0.4% & 0.5%) were applied to study the effect of tafgor on the seed germination and seedling growth of leguminous plant. It was recorded that the decrease in seed germination and photosynthetic pigment at higher concentration where is increase in above parameters at lower concentration i.e. the tafgor is concentration co-related. Dimethoate a widely used insecticide affects photosynthetic pigment and growth rate. This impact can be attributed to the inhibition of chlorophyll biosynthesis and disruption of lipid membrane. This finding suggested that tafgor can be toxic to leguminous plant. The result contributed to understanding potential non- target effect of organophosphate formulations on crop species and highlight the value in vitro assays in preliminary phytotoxicity screening.