Insect pest status and cry protein content in Bollgard and Bollgard II Bt cotton under irrigated situation
2011
Sagar, D. | Patil, B.V.
Bt cotton genotypes (BG-I, BG-II) under protected condition responded similarly for sucking pests with no differential susceptibility and no variation in the egg population of Helicoverpa armigera (Hubner). All second generation Bt cotton genotypes were better than BG-I genotypes to larval incidence and damage due to H. armigera, Earias vittella (Fabricius), Spodoptera litura (Fabricius) and Pectinophora gossypiella (Saunders) under unprotected condition. BG-II genotypes recorded higher content of Cry protein in all plant parts compared to corresponding BG-I genotypes.
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