International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Breeding of New Silkworm Strain Yeonnokjam

  • Kang, Pil-Don (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Sung, Gyoo-Byung (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Kim, Kee-Young (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Lee, Hee-Sam (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Kim, Mi-Ja (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Ji, Sang-Duk (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Hong, In-Pyo (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Kweon, Hae-Yong (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Park, Kwang-Young (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Lee, Kwang-Gil (Department of Agricultural Biology, National Academy of Agricultural Science, RDA) ;
  • Sohn, Bong-Hee (Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
  • Received : 2011.05.10
  • Accepted : 2011.08.02
  • Published : 2011.09.30
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Abstract

Yeonnokjam is a newly bred high yield special silkworm strain for spring rearing, bred from Japanese originated green cocoon spinning strain Jam 315 and Chinese originated white cocoon spinning strain Jam 316. This strain showed high hatching ratio of 96% and high healthiness of 96.7% of pupatin ratio. And its spins heavier cocoon with somewhat shorter fiber length but thicker fineness. The merits of these_strains are short larval period and labor saving, and its breeding goals are producing polish green silk and use for education.

Keywords

References

  1. Harada C (1961) Heterosis of the quantitative characters in the silkworm. Bull Sericul Exp Sta 17(1), 1-52.
  2. Kang PD, Kim KM, Sohn BH, Woo SO, Ryu KS (2000) Breeding of yangwonjam, a both parent sex-limited larval marking variety suitable for spring rearing season. Korean Seric Sci 42(1), 24-27.
  3. Kang PD, Lee SU, Jung IY, Sohn BH, Kim YS, Kim MJ, Hong IP, Lee KG, Park KY (2007) Breeding of a new silkworm variety Golden silk, a yellow cocoon color for spring rearing season. Korean Seric Sci 49(1), 14-17.
  4. Lee SP, Hong KW, Sohn KW, Choi SR, Mah YI, Kim KY (1984) Breeding of new spring silkworm variety Baegokjam. Res Rept RDA 26, 58-64.
  5. Sohn KW, Hong KW (1986) Combining ability test of silkworm varieties Top-cross. Res Rept RDA 26-1(E. Fm & S) 28(1), 66-70.

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