几对现行家蚕品种组合的纯种主要经济性状变异特征研究

通过对现行几对家蚕品种的原原种选育及品种组配育种应用中主要经济性状的调查,比较各年份之间各品种经济性状的变异,以及提高家蚕品种质量,维护品种种性状稳定性的相关技术研究.结果表明:制定合理的选育作业计划,针对各品种主要性状特征进行不同目的的选择,可以达到了保证品种种质、维护种性稳定的目的.为更好选育新品种,繁育优良蚕种提供稳定的种质资源.

Studies on the Main Economic Characters and their Variation for Several Races of Some Silkworm Hybrid Combinations

Investigation on the main economic characters of several parent races and their hybrid combinations,comparison of the character variation between races among years and research on the techniques of enhancing the race quality and stability of the characters were conducted.The results indicated that the silkworm race quality could be improved and the race characters could be stabi-lized by means of making reasonable breeding plan and selection in order to provide the fine and stable silkworm germplasm resources.