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Assessment of six Mulberry (Morus) Germplasm varieties through Moulting and Bioassay parameters by using Crossbreed Silkworms Bombyx mori L. for Commercial Exploitation in Kolar District, Karnataka, INDIA

Author Affiliations

  • 1Department of Life Sciences, Ganga Kaveri Institute of Science and Management, Rajajinagar, Bangalore-560021, Karnataka, INDIA
  • 2 Department of Sericulture, V.V.Pura College of Science, K.R. Road, Bangalore-560004, Karnataka, INDIA
  • 3 Silkworm Division, Central Tasar Research and Training Institute, Central Silk Board, Ranchi-835303, Jharkhand, INDIA
  • 4 Department of Sericulture/Life Sciences, Jnana Bharathi Campus, Bangalore University, Bangalore-560056, Karnataka, INDIA
  • 5 Mulberry Pathology Division, Central Sericultural Research and Training Institute, Central Silk Board, Mysore-570008, Karnataka, INDIA
  • 6

Int. Res. J. Biological Sci., Volume 2, Issue (9), Pages 69-75, September,10 (2013)


A critical assessment study comprising six mulberry germplasm varieties viz., Tr, Tr12, Tr20, Matigara black, Morus nigra and M was conducted at Bethamangala village in Bangarpet taluk, Kolar district for their leaf quality through economic characters of silkworms. Silkworm rearing experiments were performed using crossbreed (PM x NB) silkworms. Taxa studied differ significantly in respect of moulting and bioassay trials. Moulting test results revealed that, silkworm larvae reared on Tr8 mulberry leaves recorded highest values and lowest values were recorded in silkworm larvae reared on Morus nigra leaves both in I and II moult respectively. Silkworm rearing performance revealed that, silkworms reared on Trmulberry leaves proved better and lower values were observed in silkworms reared on Morus nigra leaves in all the bioassay parameters. From the results, it is proved that, mulberry variety Tr turns out to be a superior in moulting and bioassay tests compared to other varieties studied under the same agro climatic conditions.


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