夏秋用双限性家蚕品种1303×1302的选育  

Breeding of the Silkworm Variety 1303×1302 With Double Sex-limited Markings for Summer and Autumn Rearing

作　　者：杜周和[1] 刘俊凤[1] 张剑飞[1] 肖金树[1] 朱洪顺[2] 赵邦美 

机构地区：[1]四川省农业科学院蚕业研究所 [2]四川省蚕业管理总站,成都610017

出　　处：《蚕业科学》2007年第1期121-124,共4页ACTA SERICOLOGICA SINICA

基　　金：四川省"十.五"农作物育种攻关项目(编号2001-12-02-04)

摘　　要：选用限性基础材料,采用连续回交的育种方法,育成了夏秋用双限性家蚕品种1303、1302。新品种经高温多湿定向选育,抗逆性强,健康好养,万蚕产茧量18.39 kg,茧丝长1180.5 m、解舒丝长968.8 m、解舒率82.04%,鲜茧出丝率17.92%,洁净96.0分。新品种具有可利用幼虫斑纹区分雌雄的特性,可作为生产优质蚕种和雌雄分缫茧丝的专用蚕品种。2005年该品种通过四川省家蚕品种审定委员会审定。By using the routine method of cross breeding, the silkworm variety 1303 and 1302 , both with sexlimited markings and characters of excellent silk quality,for summer and autumn rearing were bred. The new varieties were passed hot temperature and high humidity oriented selection, their cobination is therefore of strong resistance and health and easy rearing. The yield of cocoon per 10 000 4th instar larvae of the F1 generation is 18.39 kg, equaling to that of the control Xifang × Qiubai. And the length of filament and non-broken filament, reel ability, raw silk ratio of fresh cocoon, neatness are 1 180.5 m, 968.8 m, 82. 04%, 17.92% and 96.0 points, respectively.

关 键 词：家蚕 夏秋用蚕品种 双限性 1303×1302 

分 类 号：S882[农业科学—特种经济动物饲养]