Effects of nitrogen, metoxuron and methabenzthiazuron on growth and uptake of 35S by wheat

A solution culture experiment was carried out to investigate the influence of four herbicides viz. nitrogen, terbutryne, metoxuron and methabenzthi zuron on the growth and sulphur uptake of wheat variety Kalyan Sona at Haryana Agricultural University, Hissar. Wheat seedlings were exposed to complete nutrient solutions containing 35S (as H2SO4) and graded concentrations (0, 0.6, 1.2, 2.5 and 5.0 ppm) of herbicides for 10 days. All the herbicide treatments decreased the dry weight of both root and shoot per plant. The reduction in dry matter production of wheat was minimum in case of nitrogen at all the dosages tried. With the increasing levels of herbicides, sulphur uptake of plant decreased but root to shoot transport of sulphur increased. (author)