Bio-efficacy of Sulfosulfuron against Weeds in Wheat in Vertisols

Sulfosulfuron (except at 100 g ha⁻¹) did not control wild oat population but reduced its dry matter significantly as compared to isoproturon and weedy check. Sulfosulfuron (either of its doses) was not effective against Cichorium intybus but gave effective control of Phalaris minor and Medicago hispida. Isoproturon was less effective against wild oat but gave very good control of C. album. Sulfosulfuron at 50 and 100 g ha⁻¹ was phytotoxic to wheat crop during 2001–02. Isoproturon (1000 g ha⁻¹) gave the maximum grain yield of wheat in absence of wild oat, while sulfosulfuron (50–100 g ha⁻¹) in presence of wild oat.