夏秋用蚕品种秋丰×白玉的育成  

BREEDING OF VARIETY QIUFENGxBAIYU FOR SUMMER-AUTUMN REARING

作　　者：章佩祯[1] 季平[1] 沈雪华[1] 程新华[1] 朱述钧[1] 

机构地区：[1]中国农业科学院蚕业研究所,江苏省农科院

出　　处：《蚕业科学》1994年第1期17-25,共9页ACTA SERICOLOGICA SINICA

摘　　要：采用杂交和系统分离育种的方法，育成了丝质优、产量高、制种性能好、耐氟性强的夏秋用蚕品种秋丰×白玉。与对照种相比，张产茧、张产值能提高４％以上，出丝率可提高７％，茧丝长增长８０一１００米，解舒、净度优良。该品种耐氟性强，氟敏指数值Ｉ（１７．８０）最低，春期桑叶含氟量全龄平均在４２．５ｐｐｍ，中秋期全龄平均在８８．８ｐｐｍ的情况下，产量较现行夏秋蚕品种提高７一８％，较现行春用蚕品种提高一倍，在氟污染严重的蚕区可替代春用蚕品种进行春期饲养。The variety Qiufeng X Baiyu for summer-autumn rearing has been bred by hy-bridization and pedigree separation. It is of fine silk quality, high quantity, satisfactoryproperty for seed production and strong resistance to fluorine. To be contrasted with thecontrol,the output value of each piece of seeds, the raw silk rate and the length of silkincreased respectively by 4%,7%and 80一100 metres. Its index sensitive to fluorinereaches the lowest point(17. 8). Its output can increase by 7%一8%under spring mul-berry leaf with 42. 5 ppm fluorine and middle-autumn mulberry leaf with 88. 8 ppm fluo-rine in contrast with the present summer-autumn race and by twice the spring race. So,in the sericultural area polluted by fluorine seriously , it can be reared instead of thespring race.

关 键 词：家蚕 品种 育种 杂交育种 

分 类 号：S882.2[农业科学—特种经济动物饲养]