夏秋用家蚕新品种“钱塘×新潮”的育成  

Breeding of a New Silkworm Variety "Qiantang×Xinchao" for Summer-Autumn Rearing

作　　者：曹锦如[1] 叶爱红[1] 周文林[1] 王永强[1] 姚陆松[1] 

机构地区：[1]浙江省农业科学院蚕桑研究所,杭州310021

出　　处：《蚕业科学》2009年第2期394-397,共4页ACTA SERICOLOGICA SINICA

基　　金：浙江省科技计划重大专项(编号2006C12056)

摘　　要：以强健、稳产作为育种目标,采用杂交育种方法,经特定高温多湿环境的定向培育及严格的后代选择,育成了夏秋用家蚕新品种钱塘×新潮。经浙江省家蚕品种实验室鉴定,新品种具有稳产、好养、茧丝质优良的特点:4龄虫蛹率比对照品种秋丰×白玉高2.84个百分点,万蚕茧层量、茧丝长分别比对照品种提高3.14%、4.18%,万蚕产茧量略高于对照品种。新品种在农村生产多点鉴定的综合经济性状成绩优于当地饲养品种,在气温较高的中秋蚕期饲养能够稳产高产。2008年新品种通过浙江省农作物品种审定,适于长江中下游蚕区夏、秋蚕期饲养。Aiming at the silkworm breeding objective of strong vitality and stable yield, a new silkworm variety named ＂Qiantang xXinchao＂ for summer-autumn rearing was bred with the method of hybridization followed by directive breeding and strict selection in specific high temperature and humid environment. The results of laboratory identification in Zhejiang Province showed that it was stable in yield and easy to rear, and the quality of cocoon filament was excellent. The larva-pupa rate of fourth instar increased by 2. 84% than the control （Qiufeng × Baiyu）. The cocoon shell weight per 10 000 four-instar larvae and cocoon filament length increased by 3. 14% and 4. 18% respectively than the control. The cocoon output per 10 000 four-instar larvae was slightly higher than the control. The results of rural productive test in Zhejiang Province showed that its complex economical characters were better than the control （Qiufeng x Baiyu）. It was able to achieve high and stable output in mid-autumn rearing season during which high temperature was often recorded. This new silkworm variety has been approved by the Agricultural Crop Variety Evaluation Committee of Zhejiang Province for rearing in the middle and lower reaches of the Yangtze River.

关 键 词：家蚕品种 夏秋用 钱塘 新潮 杂交育种 

分 类 号：S882.2[农业科学—特种经济动物饲养]