Performance of different bivoltine mulberry silkworm hybrids suitable for marathwada regions of India

An experiment wasconducted to evaluate the performance of bivoltine mulberry silkworm (Bombyx mori L.) hybridsunder Marathwada condition during October-November, 2008. The bi x bi hybrid CSR₁₆ x CSR₁₇ was found significantly superior in hatching percentage (95.22 per cent), larval weight (45.08 g), single cocoon weight (1.98 g), single shell weight (0.393 g) and cocoon yield/10000 larvae brushed (18.55 kg), whereas significantly superiority in less larval duration was found in bi x bi hybrid CSR₁₈ x CSR₁₉ (22.65 days) and CSR₄₈ x CSR₄ (20.98 days), respectively. Based on overall performance it can be conclude that the bivoltine hybrid CSR₁₆ x CSR₁₇ reared on mulberry variety V-1 is the most suitable for rearing under Marathwada conditions.