International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Screening of Silkworm Breeds for Tolerance to Bombyx mori Nuclear Polyhedro Virus (BmNPV)

  • Sivaprasad, V. (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI)) ;
  • Chandrasekharaiah (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI)) ;
  • Ramesh, C. (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI)) ;
  • Misra, S. (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI)) ;
  • Kumar, K.P.K. (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI)) ;
  • Rao, Y.U.M. (Andhra Pradesh State Sericulture Research ＆ Development Institute (APSSRDI))
  • Published : 2003.09.01
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Abstract

BmNPV (Bombyx mori nuclear polyhedrosis virus) causes nuclear polyhedrosis in silkworms. The tolerance of silkworms to BmNPV is controlled by polygenes. This paper reports on the relative tolerance of silkworm breeds among the germplasm maintained at Andhra Pradesh State Sericultural Research ＆ Development Institute (APSSRDI), Hindupur, India. The silkworm larvae out of second moult were per orally inoculated with BmNPV polyhedra $(l{\times}l0^{th}//ml)$ and reared upto spinning. The response to BmNPV had been categorized into apparent tolerance, real tolerance and susceptibility. Among the 145 silkworm breeds screened, 18 bivoltines and 16 polyvoltines were found to have real tolerance to BmNPV.

Keywords

References

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