品种复壮 meaning in English

race restoration
renovation of varieties

As an abundant wild sericultural resource bombyx mandarina is a treasure with much potential in research and development . it could increase the genetic diversity and be used as an important material for the study on the origin of silkworm
野桑蚕作为丰富的野生蚕业资源，是可开发利用的宝贵基因库，用于增加家蚕的遗传多样性和进行品种复壮，同时也是研究家蚕起源分化的重要材料。