现行生产用蚕品种主要性状的比较研究

目的]比较生产上正在使用的蚕品种的生产性能。方法]采用对比试验的方法,研究同品种不同种源蚕品种主要经济性状的表现情况。结果]3对蚕品种的主要经济性状除健康性相对稳定外,其他性状表现出各自的优势和特点,菁松×皓月是山东的产量最高,江苏、浙江的丝质最优;871×872是四川的产量最高,重庆的丝质最优,洞庭×碧波是四川省的南充、阆中、西昌原种场保存的原母种所生产的杂交种产量普遍偏高,但均有茧形偏大、茧层增多的发展趋势,丝质成绩以湖南蚕研所和阆中的蚕种最好。结论]同品种不同种源蚕品种主要经济性状有不同程度的差异,各品种的固有性状表现出退化现象。

Comparison of Main Characters of Silkworm Variety for the Use of Current Production

Obiective]The aim of the study was to compare the main economic characters of silkworm varieties which were being used in current production in China.Method]Using method of comparative test,performance of silkworm variety of different sources was investigated.Result]The results indicated as follows:Compared to different sources of the same variety,other characters exhibited their own advantages and features except the character of health.The output of silkworm variety Jingsong×Haoyue in Shandong was highest,the silk quality was best in Jiangsu and Zhejiang.The output of silkworm variety 871×872 in Sichuan was highest.The silk quality of 871×872 in Chongqing was best.The output of silkworm variety Dongting×Bibo in Nanchong,Langzhong and Xichang was highest.The silk quality of Dongting×Bibo in Hunan and Langzhong were best.Conclusion] The main economic characters of silkworm variety of different sources were different,and their inherent characters showed degradation.