桑蚕新品种贵蚕3号的选育  

Breeding of Guican 3, a New Variety of Silkworm

作　　者：罗朝斌[1] 易勇 姜虹[1] 曾晓英[1] 王兴乾[1] 

机构地区：[1]贵州省蚕业科学研究所,遵义563006 [2]贵州省农业技术推广总站,贵阳550001

出　　处：《贵州农业科学》2003年第5期15-19,共5页Guizhou Agricultural Sciences

摘　　要：为了适应贵州农村养蚕对品种有较高抗逆性及较好产量的要求,以一对优良的华系原种为测试种,通过配合力测验,从45个组合中选育出新品种贵蚕3号(57A·渝1×92A·24),系四元杂交种。经多年多次鉴定,西南蚕业科教协作区共鉴,农村试养、种场试繁及各项性状的比较分析,结果表明:该品种具有制种量高、抗性强、发育整齐好养、产茧高、茧大匀正、茧丝质较优,综合性状好的特点。春季四龄万蚕产茧量23.68kg,万蚕茧层量5.908kg.茧层量0.5713g,茧层率24.95％;秋季万蚕产茧量20.059kg,万蚕茧层量5.005kg,茧层量0.479g,茧层率24.95％。茧丝长1398m,解舒丝长1216m,解舒率86.98％,鲜毛茧出丝率19.98％,茧丝纤度2.876d,净度95.15分,克蚁制种19.06张。适宜贵州春秋用种。Guican 3 with high yield, strong resistance and better comprehensive economic characters is a four-line hybrid variety (57A·2 Yu 1×92 A·24) selected from 45 combinations. The identification results show that in Spring season the total cocoon weight and cocoon shell weight of fourth instar larva are 23. 68kg and 5. 908kg per 10000 silkworm respectively and cocoon shell rate is 24. 95 %, in Autumn season the total cocoon weight and cocoon shell weight of fourth instar larva are 20. 59kg and 5. 005kg per 10000 silkworm respectively and cocoon shell rate is 24. 95%, and its have length, nonbreaking length, reelability rate, raw silk percentage of fresh cocoon, size of cocoon filament, cleanliness and seed production per gram newly-hatched larva are 1398m, 1216m, 86. 98%, 19. 98%, 2. 876d, 95. 15 points and 19. 06 sheet respectively. Guican 3 should be reared in Spring-autumn season in Guizhou province.

关 键 词：桑蚕 贵蚕3号品种 选育 鉴定成绩 农村试养成绩 原蚕性状 试繁成绩 效益分析 

分 类 号：S882.2[农业科学—特种经济动物饲养]