Studies on Identification of Potential Bivoltine Hybrid of Silkworm Bombyx Mori L. for Quality Cocoon Productivity In Western Region of, Maharashtra State
Keywords:
Bivoltine Hybrid, Bombyx Mori L PerformanceAbstract
Maharashtra is largest silk producer out of which Nontraditional states of India and western zone is contributed more than 40 % out of which silk production of 252 MT and bivoltine silk is excel of industry where climate fluctuations during the rearing lead to adverse effects on bombyx mori L and .badly suffer. aims to identify potential hybrids for tolerance to adverse temperature and relative humidity. fourth day of fifth stage silkworm larvae were subjected to high temperature of 37 ± 1° C with RH of 52 ± 5 % for 8 hours until spinning .two hybrids. Significant varied were found for potential in adverse climate .out of which five hybrids were evaluated base of index value 50 (CSR6XCSR26 ) X (CSR2XCSR27 ) double hybrid (70.6 ) and ( CSR17XCSR19) (62.6 ) and new double hybrid highly potential over control CSR2xCSR4 in respect of cocoon yield ( 11.23 % ) single cocoon weight( 5.4 %) cocoon shell weight ( 7.9 % ) and silk percentage ( 2.8 % ) and filament length ( 6.9 % ) and over all parameters are indicate to significantly and to be recommended in field.
References
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