EVALUATION OF NEW GENERATION Bt GENOTYPES, SUSTAINABILITY OF Cry PROTEIN EXPRESSION, COMPUTATION OF ETL, EFFECT ON APHID PREDATORS AND DEVELOPMENT OF IPM MODULE FOR Bt COTTON UNDER RAINFED CONDITIONS

B. V. PATILSHASHIKANT, B. UDIKERI2019-05-202019-05-202007-08-29TH8651http://krishikosh.egranth.ac.in/handle/1/5810103991Investigations were carried out on different sustainability aspects of Bt cotton genotypes, during 2004-05 and 2005-06 at Agricultural Research Station, Dharwad. New generation Bt cotton MRC-7201 with crylAc -I- crylab genes (BG-U) found to be best against bollworms. Under unprotected conditions the incidence of Helicoverpa annigera (Hubner) was 0.13 larva / plant in MRC-7201 (BG-U) with 5.05 per cent damage which was on par with MRC-6322 Bt (BG-II). RCH 368 Bt was better than others with crylAc gene and was at par with RCH-2 Bt. Interspecific Bt hybrids with crylAc RCH-708 and MRC-6918 were better over DCH-32.ennullEVALUATION OF NEW GENERATION Bt GENOTYPES, SUSTAINABILITY OF Cry PROTEIN EXPRESSION, COMPUTATION OF ETL, EFFECT ON APHID PREDATORS AND DEVELOPMENT OF IPM MODULE FOR Bt COTTON UNDER RAINFED CONDITIONSThesis