International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Breeding of new silkworm variety, 'Chilseongjam' with peculiar laval mark

  • Kim, Seong-Wan (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kim, Kee-Young (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kim, Seong-Ryul (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kim, Su-Bae (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Ji, Sang-Duk (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kim, Nam-Suk (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kweon, Hae-Yong (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Jo, You-Young (Department of Agricultural Biology, National Institute of Agricultural Science, RDA) ;
  • Kim, Jong-Gil (Department of Agricultural Biology, National Institute of Agricultural Science, RDA)
  • Received : 2018.11.03
  • Accepted : 2018.12.13
  • Published : 2018.12.31
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Abstract

A new silkworm variety 'Chilseongjam' was bred for special purpose as educational learning and festivals. Their breeding history and major characteristics are as follows. The Chilseongjam variety was selected and succeeded from the F1 of Galwon ${\times}$ C721 in 2009 autumn. They are showing 94% (spring & autumn) of high practical hatching ratio. The larval period of Chilseongjam (spring: 23 d, autumn: 24 d 3 h) was shorter than that of Daebakjam (spring: 24 d, autumn: 25 d 23 h). In the pupation percentage, Chilseongjam (spring: 96.6%, autumn: 86.1%) is similar to Daebakjam Daebakjam (spring: 96.3%) in spring, but autumn is lower than Daebakjam (autumn: 94.9%). Single cocoon weight (spring: 1.57 g, autumn: 1.29 g) and Cocoon yield (spring: 14.2 kg, autumn: 11.1 kg) were lower than those of Daebakjam (spring: 2.76 g, 25.4 kg, autumn: 2.19g, 20.2 kg), respectively. The new silkworm variety, Chilseongjam showed higher pupation rate than control variety. This variety can be used as a educational learning and festivals.

Keywords

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Fig. 1. The pedigree of ‘Chilseongjam silkworm’, the F1 hybrid between Galwon × C721.

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Fig. 2. Photographs of larvae and cocoons of the Chilseongjam silkworm

Table 1. Rearing results of Chilseongjam through the local adaptability test performed at 8 places in spring 2016

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Table 2. Rearing results of Chilseongjam through the local adaptability test performed at 8 places in autumn 2016

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Table 3. Adaptability test to the artifcial diet of silkworm in spring 2016.

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