桑蚕夏秋用品种贵蚕一号的选育  

Breeding of Summer autumn Rearing Guican 1

作　　者：姜虹[1] 罗朝斌[1] 古松茂[1] 易勇[2] 赖学枢[1] 

机构地区：[1]贵州省蚕业科学研究所,遵义563123 [2]贵州省农业厅,贵阳550001

出　　处：《贵州农业科学》2000年第4期23-26,共4页Guizhou Agricultural Sciences

基　　金：贵州省农业厅资助项目

摘　　要：采用现行夏秋种薪杭×科明为基础 ,通过加入多丝量品种 82 7和 82 6 ,组配育成了强健优质的夏秋用品种贵蚕一号 (82 7·薪杭× 82 6·科明 )四元杂交种。经多次鉴定、农村试养、试繁结果表明 ,该品种体质强健好养 ,制种性能好 ,产量高 ,茧丝质良好 ,综合经济性状优良 ,四龄万蚕收茧量 2 0 .6 8kg,四龄万蚕茧层量 4 .92 kg,茧层率 2 3.85% ,茧丝长 12 0 3m,解舒丝长 10 4 6 .8m,解舒率86 .95% ,鲜毛茧出丝率 17.80 % ,茧丝纤度 2 .82 D,净度 97.81分 ,克蚁制种 18.70张。适宜贵州省广大蚕区夏秋季用种。On the basis of Summer autumn rearing (Xinghang×Keming), high silk yielding rearing (827 and 826) were added to breed the high quality and strong variety Guican 1 (827, Xinghang×826, Keming), it is a four component hybrid variety. Identified many times and plot demonstration in the village testifies that it is strong, raised and bred easily, also with high yield. The bave and the comprehensive characters are good. The total cocoon is 20.68 kg for fourth instar larva per 10000 silkworm, fourth instar larva cocoon shell weight 4.92kg per 10000 silkworm, cocoon shell percentage 23.85% , bave length 1203 m , nonbreaking length of a bave 1046.8 m , reelability percentage 86.95% . The raw silk percentage of fresh cocoon is 17.80% , size of cocoon filament 2.82D , cleanliness 97.81 , seed production 18.70 per gram hatched larva. It is a good Summer autumn rearing in Guizhou province.

关 键 词：桑蚕 贵蚕一号 选育 鉴定 夏秋用品种 

分 类 号：S882.2[农业科学—特种经济动物饲养]