[目的]研究家蚕经济性状与抗病性之间的相关性.[方法]通过对15个家蚕品种品系在常规饲育条件下的经济性状和抗病性进行调查,对经济性状与抗病性进行相关性分析.[结果]单蛾卵量、全茧量、茧层量、茧层率与虫蛹率均呈负相关,其中茧层量与虫蛹率呈显著负相关；单蛾卵量、全茧量、茧层量、茧层率与幼虫生命率虽然未达显著相关,但均呈负相关.[结论]家蚕抗病性与经济性状呈负相关或显著负相关.在家蚕品种的选育过程中,应当兼顾经济性状与抗病性.%[Objective] The research aimed to study the correlation between the economic characters and the disease resistance of silkworm. [ Method jThe economic characters and disease resistance of 15 silkworm varieties under normal rearing conditions were investigated to analyze the correlation between the economic characters and disease resistance. [Result]The egg-quantity of single moth,whole cocoon weight,cocoon shell weight,cocoon shell rate all showed negative correlations with larva - pupa survival rale and the correlation between the cocoon shell weight and pupation rate was significant. The correlations between egg-quantity of single moth,whole cocoon weight,cocoon shell weight,cocoon shell rate and larva-pupa survival rate were not significant,but the correlations were negative. [Conclusion]The disease resistance of silkworm showed a negative or significant negative correlation with the economic characters. Both the economic characters and the disease resistance should be considered in the breeding process of silkworm.
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