International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
권호 표지

Preliminary Report on the Breeding of Robust and Resistant-NPV and High Quality Silkworm Race 'Shengming No.1' for Summer-autumn Rearing

  • Zhao, Yuan (Institute of Life Sciences, Jiangsu University) ;
  • Chen, Kepin (Institute of Life Sciences, Jiangsu University) ;
  • Yao, Qing (Institute of Life Sciences, Jiangsu University) ;
  • Wu, Yang-Chun (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • Zhang, Jian (Sericultural Research Institute, Chinese Academy of Agricultural Sciences) ;
  • Guo, Xijie (Sericultural Research Institute, Chinese Academy of Agricultural Sciences)
  • Published : 2006.12.31
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Abstract

Seveval Chinese and Japanese varieties with good characters were used in the breeding. After 5 years (15 generations), a pair of robust and high quality silkworm variety with NPV resistance was bred by means of a combination of crossing and pedigree selection complemented by the selection of NPV resistance. The variety was identified jointly nationwide in 2003 and 2004, and appraised by National Mulberry and Silkworm Appraising Committee. Results are as follows: its cocooning rate is over 93%, shell rate 23-25%, filament length 1200-1300 meters, reelability 75-88%, Length of non-broken cocoon filament 900-1100 meters, raw silk rate 17-19%, neatness 95-97 points, and cocoon crop, cocoon shell weight and raw silk weight per 10000 larvae is higher than those of the control variety by 7-10%, 14-19% and 14-18%, respectively. The variety is not only robust, resistant to high temperature and NPV, easy to rear, uniform in hatching, molting and maturing, but also lays more eggs, and its fecundity is high. It is suitable to rear in the Yangtze River Basin, the Yellow River basin and the Pearl River basin of China.

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References

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