家蚕抗病性与经济性状的相关性研究

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。

Study on the Correlation between Disease Resistance and Economic Characters of Silkworm

Objective]The research aimed to study the correlation between the economic characters and the disease resistance of silkworm.Method]The 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 rate 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.