【摘要】 本文通过对浙江省蚕种公司和中国农业科学院蚕业研究所提供的菁松、皓月品种的原原种和杂交种27年的历年饲育成绩和经济性状分析,认为菁松、皓月的主要经济性状没有改变,仍保持推广初期的饲育成绩水平,且某些经济性状有所提高;同时阐述了菁松、皓月品种的种性维持及系统改良的方法和经验。更多还原

【Abstract】 Through the analysis on rearing results and economical performance of parent and hybrid for 27 years, which provided by Zhejiang Silkworm Egg Co. Ltd and Sericultural Research Institute, Chinese Academy of Agricultural Sciences, it was considered that no changes of major economic traits, maintaining the rearing level of early promotion, and improvement of some economic traits in the variety of "Jingsong" and "Haoyue" in Zhejiang Province. At the same time, the maintenance of specific property and line improvement were explained, and several advices about variety maintenance were also put forward to the departments of production in this paper.更多还原