1Andhra Pradesh State Sericulture Research and Development Institute, P.O. Kirikera, Hindupur-515 211 (Andhra Pradesh), India.
2Department of Sericulture, University of Mysore, Mysore (Karnataka), India.
Three breeding plans were initiated using three bivoltine commercial hybrids from China with an objective to inbreed productive bivoltine pure lines. A total of 09 inbred lines including two sex-limited larval marking, one each of oval and dumbbell, two plain oval, three plain dumbbell and two marked dumbbell lines were developed. Evaluation and characterisation of all these lines was detailed in the investigation. The lines showed productive merit for pupation rate, cocoon weight, single shell weight, cocoon shell ratio, filament length and reelability besides exhibiting tolerance/resistance to BmIFV, BmDNV and BmNPV.
