目前国内红薯育种仍以品种间的有性杂交为主要方法,我们结合育种工作对一些组合的主要经济性状(产量与干率)和抗根腐病能力的遗传变异趋势进行了初步探讨,现就红薯杂交亲本选配的几个问题谈几点看法,供参考.(一)在育种工作中,经常碰到高产品种多为 At present, the domestic sweet potato breeding is still based on the sexual hybridization between breeds as the main method, we combine the breeding work of some combinations of the main economic traits (yield and dry rate) and resistance to root rot of the genetic variation trends were discussed, now Sweet potato hybrid parents several issues to talk about several points for reference. (A) in breeding work, often encounter high-yield varieties are