Bioefficacy of clethodim in soybean and their residual effect on succeeding green gram

Bioefficacy and phytotoxicty of clethodims in soybean and its carryover effect on succeeding green gram was identified in field experiment at College of Agriculture, Navile, Shivamogga. University of Agricultural Sciences, Bengaluru during Kharif 2010. Weed flora was dominated by Celosia argentia, Acanthospermum hispidum, Commelina benghalensis, Borreria articularis, Parthenim hystrophorus, Cleome viscosa, Dactyloctenium aegyptium, Cynodon dactylon, Eleusine indica, Digitaria marginata and Cyperus rotundus. Application of clethodim 24% EC @ 60 g a. i. ha⁻¹ along with NIS + AMS significantly recorded higher number of podsperplant, number of seeds per plant, pod weight per plant, hundred seed weight and seed yield. This was on par with application of clethodim 24% EC @ 48 g a. i.ha⁻¹ along with NIS + AMS. Clethodim and other treatments showed neither phytotoxic injury nor any significant difference in germination, root weight, shoot weight, vigour index and total dry matter of succeeding green gram.