【摘要】 阐述了从杂交组合（中系×日系）选育日系品种的方法。经过多年选择，从中培育出７个日系品种。该方法不仅拓宽了家蚕日系品种选育途径，而且丰富了家蚕日系品种资源。更多还原

【Abstract】 A new Japanese variety was usually bred from Japanese strains cross breeding. In this paper,the way bred Japanese variety from hybrid between Japanese strain and chinese strain was expounded,and seven Japanese varieties had been bred.It not only enlarged the breeding way,but also enriched the resources of silkworm.更多还原