| Abstrakt: |
The silk produced by the silkworm, Bombyx mori L. as a proteinous filament varies in its qualities among different genotypes. Some genotypes are highly productive as compared to others. A study carried out for the evaluation of post -cocoon parameters such as filament length, denier, renditta, raw silk percentage and raw silk recovery percentage of 39 genotypes of silkworm, B. mori under temperate climatic conditions exhibited maximum filament length of 1115.3 meters in CSR2 having an average cocoon weight and shell weight of 1.74g and 0.37g respectively. This was followed by SK-27. with filament length of 1089.3 m having average cocoon weight and shell weight of 2.06g and 0.42g respectively and SK-31 having filament length of 1064 m with average cocoon and shell weight of 1.88g and 0.39g respectively. SK-1 exhibited highest shell percentage of 21.93. Finer denier of 2.05 was recorded in Jam10 genotype and lowest renditta of 6.46 and highest raw silk percentage of 15.68 was exhibited by CS R2. Raw silk recovery of 82.91 % was recorded highest in SK-13. The observations showed that SK and CSR genotypes have better post -cocoon characters and therefore could be utilized for the commercial silkworm seed production. [ABSTRACT FROM AUTHOR] |
