Genetic variation, correlation and path analysis in mulberry silkworm, Bombyx mori L.
2000
Jayaswal, K.P. (Central Silk Board, Coonor (Inde). Regional Sericultural Research Station) | Masilamani, S. | Lakshmanan, V. | Sindagi, S.S. | Datta, R.K.
Genotypic and phenotypic variability and genetic parameters i.e., heritability, coefficient of variation and genetic advance were estimated for fecundity, larval period, larval weight, cocoon yield by number and weight, single cocoon weight, shell weight, shell ratio and filament length in 32 bivoltine silkworm (Bombyx mori L.) genotypes of both tropical and temperate origin. The highest coefficient of variation was observed for fecundity, filament length and cocoon yield by number. A high heritability value along with a high genetic advance was obtained for single shell weight, single cocoon weight and larval weight. Genotypic correlations of shell weight were highly significant in respect of larval weight, single cocoon weight, shell ratio and filament length. Path coefficient analysis revealed that the maximum direct positive effect to shell weight was contributed by the single cocoon weight followed by the shell ratio, fecundity and larval period. The indirect effect of larval weight through single cocoon weight was higher than its direct effect
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل National Institute for Agricultural Research