家蚕新品种5·芙×7·湘的选育

Selection and breeding of silkworm new variety 5·Fu×7·Xiang

用杂交育种方法育成经济性状优良的斑纹限性品种 5 7限 ,通过杂交组配及配合力测定 ,育成 5·芙× 7·湘四元杂种 ,经全省品比鉴定 ,幼虫生命力、发育经过、茧丝质各项经济性状指标优良 ,符合新品种审定标准 。

Xian with sex limited marking and excellent economic character was bred by cross breeding.By means of cross combination and combining ability test,a four way hybrid combination named 5·Fu×7·Xiang was selected.Provincial identification showed its economic characters,such as developmental duration,survival ability of larvae and cocoon quality,were very good,which accorded with the new variety examination and approval standards.This new silkworm variety is suit for spring and autumn rearing in Guangdong.\;