Breeding of Productive Bivoltine Hybrid, CSR16×CSR17 of Silkworm Bombyx mori L.
Mal Reddy, N.;Basavaraja, H.K.;Suresh Kumar, N.;Joge, P.G.;Kalpana, G.V.;Dandin, S.B.;Datta, R.K.(Central Sericultural Research and Training Institute, Mysore, India)E-mail:nmreddyabba@yahoo.co.in
The breeding work was initiated by utilizing two Japanese hybrids namely C135×N134 and N137×C146 along with two evolved Indian breeds, J14 and A24. The breed CSR16 which is characterized with marked larvae and white dumbbell cocoons was evolved from the Japanese hybrid C135×N134 by crossing with J14, while the breed CSR17 which is characterized with plain larvae and white oval cocoons was evolved from the Japanese hybrid N137×C146 by crossing with A24. The hybrid of these evolved breeds i.e., CSR16×CSR17 has shown superior over control hybrid KA×NB₄D₂ and on par with the ruling hybrid of CSR2×CSR4.
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