EFFICACY OF PRE AND POST EMERGENCE HERBICIDES IN Bt COTTON (GOSSYPIUM HIRSUTUM) UNDER RAINFED CONDITION

A field experiment was conducted at Farm of Agronomy Department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (Maharashtra), India; during Kharif season 2013-14. The results indicated that 1 Hoeing at 20 DAS fb Glyphosate 41SL @ 1.00 kg a.i./ha 45-55 DAS proves better in controlling weed, dry matter accumulation, weed control efficiency. Fenoxyprop ethyl 10EC @ 0.1 kg a.i./ha PoE 20-25 + hoeing at 45 DAS recorded the maximum plant height (121.73 cm), number of functional leaves plant -1 and leaf area per plant and maximum dry matter accumulation plant -1 recorded in farmers practice (2H+1HW). Application of Pyrithiobac sodium 10EC @ 0.062 kg a.i./ha PoE fb Quizalofop ethyl 10EC @ 0.075 kg a.i./ha PoE 20-25 DAS + hoeing at 45 DAS was superior over rest of the weed control treatments as regards all yield attributing traits and seed cotton yield + cotton stalk yield (kg/ha).