家蚕春用四元杂交天然绿色茧品种湘彩绿1号的选育

本研究旨在选育天然茧色稳定、强健好养、茧丝质水平达到实用化程度的天然绿色茧家蚕春用品种。分别以优良春用品种菁松×皓月的4个品系为轮回亲本,天然绿茧品种G 9202为供体亲本,在插入强健性优良材料的基础上,通过轮回回交育成法组配成了4个新的选育材料。进而对这些新材料进行定向培育与纯选固定,使之天然茧色稳定一致,综合性状更加优良,最终利用多元组配技术选配成了一对实用化特点突出的四元杂交新品种湘彩绿1号。2016年该品种通过湖南省农作物品种审定委员会审定,适合在包括湖南在内的长江流域春季推广。

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

The breeding activities aimed to create a natural green cocoon variety for spring rearing in stable color of natural cocoon,easy rearing race,high practical characters of cocoon filament.Four different strains from the excellent silkworm variety Qingsong×Haoyue were taken as recurrent parents,using the natural green cocoon variety G 9202 as donor parent.After the other excellent parents were introduced to cross with these different strains,the 4 newly breeding materials were selected by recurrent backcross breeding.The characters of these breeding materials showed not only natural green cocoon but also excellent comprehensive.The naturally colored cocoon quaternary hybrid Xiangcailu No.1 with excellent practical characters was selected based on multiple hybrids.Xiangcai Lü1 is suitable for spring rearing in Yangtze valley which includes Hunan Province.It has appraised by Hunan Provincial Evalution Committee for Agricultural Crop Variety in 2016.