摘要
采用杂交育种方法,育成了优质、高产中秋用家蚕新品种921×922。经四川省级实验室鉴定表明:该品种孵化、眠起、上蔟齐一;体质强健好养,蚕体粗壮,茧形大且匀整;叶丝转化率高,其万蚕茧层量、万蚕产丝量分别比对照种夏芳×秋白提高7.88%、6.03%;解舒丝长、解舒率、洁净、鲜毛茧出丝率分别为924 m、82.06%、94.7分、18.59%,分别比对照种夏芳×秋白提高31m、2.90%、1.7分、1.32%,综合经济性状优良。
By using hybridization method, the new silkworm combination 921 ×922 with characters of high silk yield and excellent silk quality for autumn rearing was bred. The results of laboratory identification from in Sichuan province revealed that it is uniform in hatching,molting and maturing,strong and healthy,and easy to be reared,the size of silkworm body and cocoon is large and uniform. The yields of cocoon shell weight and silk weight per 10 000 larvae are increased by 7.88% and 6.03% ,respectively than the contrast breed Xiafang x Qiubai, Length of non-broken cocoon filament,reelability, neatness,raw silk ratio of fresh cocoon are 924 m ,82.06 % ,94.70 points and 18.59 %, that are increased by 31 m,2.90 %, 1.70 points and 1.32 % respectively than the contrast breed Xiafang × Qiubai,and the comprehensive economic characters are good.
出处
《西南农业学报》
CSCD
2007年第3期538-541,共4页
Southwest China Journal of Agricultural Sciences
基金
四川省"十五"农作物育种攻关项目(编号:2001-12-02-01)
关键词
家蚕
中秋用品种
921
922
杂交育种
Bombyx moll
variety for autumn rearing
921
922
cross breeding
