TITLE

INFLUENCE OF SEASONAL VARIATION ON COCOON, SILK FILAMENT AND ECONOMIC TRAITS OF BOMBYX MORI L

AUTHOR(S)
Kamili, Masrat Bashir Afifa S.; Sharma, R. K.
PUB. DATE
August 2014
SOURCE
International Journal of Advanced Biological Research;8/16/2014, Vol. 4 Issue 3, p362
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present study was undertaken to evaluate ten popular bivoltine silkworm breeds viz., SK-6 (P), SK-24 (P), SK-34 (P), SK-30 (P), CSR-2(P), SK-1 (M), SK-13 (M), SK-28 (M), SK-31 (M) and Dun-22 (M) under temperate climatic conditions of Kashmir in a completely randomized design with three replications each. The results revealed that pooled analysis of variance showed significant differences among genotypes and their interaction with the environment for all the characters during both the seasons. In both spring and summer seasons significantly highest shell weight, shell ratio, raw silk and cocoon weight were recorded in SK-1 and SK-6. Significantly high filament length was recorded in SK-6 and SK-1, while filament size in spring was high in SK-31 and in summer season high filament size was found in SK-1. Silk gland somatic index was significantly higher in SK-34 in during both seasons, while significantly high silk conversion index recorded in SK-13 and CSR-2. Yield-10000 larvae were found significantly high in SK-1 and SK-6, whereas lowest yield-10000 larvae were recorded in CSR-2 during both the seasons as well as pooled data over environments. The study also revealed that irrespective of genotypes the values for these traits were marginally higher in spring than summer season.
ACCESSION #
98583957

 

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