Breeding of a Natural Green Cocoon Quaternary Hybrid Combination Xiangcailu No.1 for Spring Rearing  

作　　者：Hong XUE Junwen AI Yanghu SIMA Xingjian HE Changwen LIU Ying ZHENG Yong LIU Yun TANG 

机构地区：[1]Sericultural Research Institute of Hunan Province,Changsha 410127,China [2]Soochow University,Suzhou 215123,China

出　　处：《Agricultural Biotechnology》2019年第4期14-18,25,共6页农业生物技术（英文版）

基　　金：Supported by Earmarked Fund for China Agriculture Research System(CARS-18);Hunan Provincial Science and Technology Support Program(2013NK3071);Natural Science Foundation of Hunan Province(2017JJ2137);Silkworm Germplasm Resources Multi-element Application Research and Development Innovation Team(2017XC01)

摘　　要：The breeding activities aimed to create a natural green cocoon variety for spring rearing with the characteristics of stable natural cocoon color,easy rearing and good silk quality.Four different lines from the excellent silkworm variety Jingsong×Haoyue were taken as recurrent parents,using the natural green cocoon variety G 9202 as donor parent.After other excellent parents were introduced to cross with these different lines,four new breeding materials were selected by recurrent backcross breeding.The characters of these breeding materials showed not only natural green cocoon but also excellent comprehensive traits.A naturally colored cocoon quaternary hybrid with excellent practical characters was selected based on multiple hybrids.It is suitable for spring rearing in Yangtze valley which includes Hunan Province.It was approved by Hunan Provincial Crop Variety Approval Committee and designated Xiangcailu No.1 in 2016.The breeding activities aimed to create a natural green cocoon variety for spring rearing with the characteristics of stable natural cocoon color, easy rearing and good silk quality. Four different lines from the excellent silkworm variety Jingsong×Haoyue were taken as recurrent parents, using the natural green cocoon variety G 9202 as donor parent. After other excellent parents were introduced to cross with these different lines, four new breeding materials were selected by recurrent backcross breeding. The characters of these breeding materials showed not only natural green cocoon but also excellent comprehensive traits. A naturally colored cocoon quaternary hybrid with excellent practical characters was selected based on multiple hybrids. It is suitable for spring rearing in Yangtze valley which includes Hunan Province. It was approved by Hunan Provincial Crop Variety Approval Committee and designated Xiangcailu No.1 in 2016.

关 键 词：Silkworm Xiangcailu No.1 Recurrent BACKCROSS BREEDING NATURAL green COCOON SPRING REARING Easy REARING Excellent silk quality 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]