Uptake and Translocation of Benthiocarb Herbicide by Plants

Abstract

The uptake and translocation of 14C-benthiocarb labelled at benzyl methylene by rice plant, bamyardgrass, wild amaranth, smart weed and lambsquarters were investigated, 14C-Benthiocarb was absorbed through the roots and the radioactivity was translocated into whole plants. The rate of absorption and translocation varied by the kind of plants. The translocation was occurred not only from roots into leaves, but from a leaf into other leaves, and even into roots of some kinds of plant. The absorption and translocation was more easy in barnyard-grass than in rice plant. Benthiocarb was rapidly absorbed by seeds and accumulated mostly in the embryo. The uptake of benthiocarb by seedlings decreased with the order of mesocotyl (bamyardgrass only), coleoptyl, root and leaf. Benthiocarb was degraded rapidly in plants.