Both hatching and larval growth are improved and the larval period is reduced.
Silkworm gain resistance, become strong and can survive in adverse climatic conditions.
Cocoon productivity increases along with the single cocoon and single shell weight.
Silk filament becomes thick and long.
NORMS OF SEED COCOONS REQUIRED TO PRODUCE QUALITY BIVOLTINE HYBRID SEED
Production of quality bivoltine hybrid seed can be achieved by using bivoltine parent seed cocoons with following parameters :
Average single cocoon weight of 1.55 g to 1.75 g i.e., 570 to 650 cocoons per kg.
Production of quality multivoltine hybrid seed can be achieved by using multivoltine parent seed cocoons with following parameters :