家蚕产茧量与主要性状的灰色关联分析

The Relationship between Cocoon Weigh of and Main Quantitative Characters Silkworms Analyzed by the Grey Related Degree System

应用灰色系统理论分析方法,对18个家蚕纯种的万蚕产茧量和10个主要数量性状的相互关系进行了分析。结果表明,各个性状对万蚕产茧量的关联度由大到小的次序依次为:全茧量>茧层量>单蛾卵量>四龄结茧率>良卵率>死笼率>普茧率>健蛹率=茧层率>同宫茧率。可为家蚕纯种的定向培育和选育种提供参考。

The relationship between cocoon yield/10000 silkworms and ten main quantitative characters of ten silkworm varieties were analyzed by the grey related system theory. The results showed that the related degree between cocoon yield/ 10000 silkworms and ten main quantitative characters was cocoon weight〉cocoon shell weight〉egg weight per moth〉cocoon rate at the fourth instar stage〉good egg rate〉rate of dead cocoons〉normal cocoon rate〉cocoon shell percentage〉cocoon rate of the same, which can provide the reference for directional raising and breeding of silkworm.