Breeding of Healthy Fine Size Trimolter Variety Yuecanxixian No. 1  

作　　者：Qiu Guoxiang Wang Xianyan Huang Pin Lin Zhongfen Zhang Guiling Zhong Suyuan Hu Zhiming Luo Zhennan Li Linshan Guo Dingguo 

机构地区：[1]Guangdong Provincial Sericultural Technology Extension Center

出　　处：《Animal Husbandry and Feed Science》2015年第2期78-82,85,共6页动物与饲料科学（英文版）

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(2007B060401090;YKCZ[2009]No.190)

摘　　要：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.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.

关 键 词：Yuecanxixian No. 1 Trimoher Four-way cress combination HEALTHY Fine size 

分 类 号：S882[农业科学—特种经济动物饲养]