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Breeding of a New Silkworm Variety, Kumhwangjam, with a Sex-Limited Cocoon Color for Spring Rearing Season  

Kang, Pil Don (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Sohn, Bong Hee (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Lee, Sang Uk (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Kim, Mi Ja (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Jung, I Yeon (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Kim, Young Soon (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Kim, Yung Dae (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Lee, Heui Sam (Department of Agricultural Biology, National Institute of Agricultural Science and Technology)
Publication Information
International Journal of Industrial Entomology and Biomaterials / v.9, no.1, 2004 , pp. 89-93 More about this Journal
Abstract
A new silkworm variety, Kumhwangjam, with a sex-limited cocoon color for spring rearing season is F$_1$ hybrid between Jam 309, a Japanese race bred from Y1/9153, and Jam 310, a Chinese race from Y1/8586. In the local adaptability test performed at 8 local areas in spring rearing season of 2003, major characteristics of Kumhwangjam were mainly similar to those of the check variety Kumokjam. The new silkworm variety, Kumhwangjam, showed a sex-limited cocoon color: yellow for female and white for male with elliptical cocoon shape. This sex-limited cocoon color can be used as a valuable marker for discrimination between female and male for various purposes.
Keywords
Bombyx mori; Breeding; Combining ability; Kumhwangjam; Sex-limited cocoon color; Silkworm;
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