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Preliminary Report on Breeding of Coarse Size Variety ${CU_1}{\times}{CU_2}$ of Bombyx mori L
Zhao, Yuan,Wu, Yangchun,Qian, Heying,He, Yiyuan,He, Simei Korean Society of Sericultural Science 2004 International Journal of Industrial Entomology Vol.9 No.1
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.
Preliminary Report on Breeding of Coarse Size Variety CU1 x CU2 of Bombyx mori L
Yuan Zhao,Yangchun Wu,Heying Qian,Yiyuan He,Simei He 한국잠사학회 2004 International Journal of Industrial Entomology Vol.9 No.1
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 CU1×CU2, was obtained after five years. Laboratory trials showed that the filament size of its F1 hybrid was over 4.3 D, and the other economic characters were also good.