International Journal of Advanced Science and Research

International Journal of Advanced Science and Research


International Journal of Advanced Science and Research
International Journal of Advanced Science and Research
Vol. 1, Issue 2 (2016)

Moth longevity of multivoltine genotypes of silkworm, Bombyx mori L


Veeranna Gowda, Balachandran N, Ashok Kumar K, Mishra PK

In silkworm, the total life span from egg to adult moth death varies from one voltinistic group to another as it is a genetically controlled biological phenomenon. In the present study, adult moth longevity of eighty-one multivoltine genotypes of silkworm, Bombyx mori conserved in the silkworm Gene Bank of CSGRC was utilized as material. Adult moth longevity of virgin and mated female and male was calculated by following standard procedure. The longevity and survival curve proved to be characteristic for each of the genotypes. The average moth longevity for the females was 8.81 (virgin) and 7.73 days (mated) and it was 7.65 (virgin) and 6.86 days (mated) in males. It is clear from the present findings that there is sexual difference in the silkworm Bombyx mori for adult moth longevity. The importance of moth longevity as an index of breeding is discussed and it is proposed that the heterogametic sex (XY as female) have shown longer duration of survival than the homogametic sex (XX as in male). Also, the variations in moth longevity observed are may be because of the racial identity.
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How to cite this article:
Veeranna Gowda, Balachandran N, Ashok Kumar K, Mishra PK. Moth longevity of multivoltine genotypes of silkworm, Bombyx mori L. International Journal of Advanced Science and Research, Volume 1, Issue 2, 2016, Pages 10-13
International Journal of Advanced Science and Research