International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Preliminary Report on Breeding of Coarse Size Variety ${CU_1}{\times}{CU_2}$ of Bombyx mori L

  • Zhao, Yuan (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • Wu, Yangchun (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • Qian, Heying (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • He, Yiyuan (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • He, Simei (Sericultural Research Institute, Chinese Academy of Agricultural Sciences)
  • Published : 2004.09.01
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Abstract

A number of Chinese, Japanese and European silkworm strains with coarse size filament were used for breeding the coarse size variety. Through cross breeding combined with pedigree selection within thirteen generations, a pair of coarse size silkworm variety, named ${CU_1}{\times}{CU_2}$, was obtained after five years. Laboratory trials showed that the filament size of its 4F_1$ hybrid was over 4.3 D, and the other economic characters were also good.

Keywords

References

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