【摘要】 优良蚕品种是发展蚕桑生产的重要物质基础之一,是最经济、最有效的增产手段。为了解全国各重点蚕区推广应用的当家蚕品种的演变,对川,苏,浙三省各年代和全国各省(区、市)当家蚕品种变化及其所占比列进行资料整理。从资料中得知:春用"菁松×皓月"与夏秋用蚕品种"932·芙蓉×7532·湘晖(两广2号)"为目前的当家蚕品种,其饲养量所占比列有望增加。更多还原

【Abstract】 Fine silkworm varieties are one of the important material bases for the development of silkworm production,and are the most economical and effective means of increasing production. In order to understand the evolution of silkworm varieties in key regions of China, the data of silkworm varieties and their proportion in sichuan, jiangsu and zhejiang provinces were collected. It is learned from the data that the current silkworm varieties used in spring are"pineproportion of its breeding quantity is expected to increase.更多还原