Taking introduced trimolter varieties 853 Bai and 543B with stable moltinism as male parents, and tetrarnolter varieties 932, 7532, Furong, Xianghui with excellent comprehensive economic characters in current producti...Taking introduced trimolter varieties 853 Bai and 543B with stable moltinism as male parents, and tetrarnolter varieties 932, 7532, Furong, Xianghui with excellent comprehensive economic characters in current production as female parents, the trimolter varieties San, Long, Hui and Yuan with excellent compre- hensive economic characters and stable mohinism were bred using cross breeding and systematic breeding methods, and healthy trimoher four-way cross combination ＂San · Long × Hui · Yuan＂ （ Yuecanxixian No. 1 ） was assembled. Provincial laboratory and rural production and identification results showed that the variety had strong vitality, stable moltinism （trimolt rate over 98% ） and short duration; laboratory identification results were as follows： cocoon filament size 1. 853 dtex, cocoon filament length 1 146 m, reelability percentage 73.04%, neatness 95.38 points, strength 4.63 mN/dtex, elongation rate 23.3%, cohesion 116 times. The variety was approved by Guangdong Crop Variety Approval Committee in December 2010, which can be used as raw cocoon for reeling high-grade fine size raw silk.展开更多
基金Supported by the Seventh Batch of Development Project of National Silk Development Risk Fund(GJXB[2007]No.36)Science and Technology Infrastructure Construction Project of Guangdong Province(2007B060401090YKCZ[2009]No.190)
文摘Taking introduced trimolter varieties 853 Bai and 543B with stable moltinism as male parents, and tetrarnolter varieties 932, 7532, Furong, Xianghui with excellent comprehensive economic characters in current production as female parents, the trimolter varieties San, Long, Hui and Yuan with excellent compre- hensive economic characters and stable mohinism were bred using cross breeding and systematic breeding methods, and healthy trimoher four-way cross combination ＂San · Long × Hui · Yuan＂ （ Yuecanxixian No. 1 ） was assembled. Provincial laboratory and rural production and identification results showed that the variety had strong vitality, stable moltinism （trimolt rate over 98% ） and short duration; laboratory identification results were as follows： cocoon filament size 1. 853 dtex, cocoon filament length 1 146 m, reelability percentage 73.04%, neatness 95.38 points, strength 4.63 mN/dtex, elongation rate 23.3%, cohesion 116 times. The variety was approved by Guangdong Crop Variety Approval Committee in December 2010, which can be used as raw cocoon for reeling high-grade fine size raw silk.
