“种”是农业增产的内因。随着农业现代化的发展,种子工作的现代化务必要先行一步。现就提纯复壮的问题谈点看法。育种创新与提纯复壮的辩证关系选育出突破性优良品种引起产量大幅度增长的事实,已被广泛重视。但是,在加强与提高育种工作的同时,良种繁育事业也不容忽略。我们既要大力选育新品种(组合),又要对现有大面积使用或将推广的 “Species” is the internal cause of agricultural production increase. With the development of agricultural modernization, the modernization of the work of seeds must take a first step. Now on the issue of purification and rejuvenation talk about point of view. The dialectical relationship between breeding innovation and purification and rejuvenation has drawn extensive attention due to the fact that breeding breakthrough excellent varieties has caused a substantial increase in output. However, while strengthening and improving breeding work, the cause of breeding and breeding should not be neglected. We must vigorously breed new varieties (combinations), but also on the existing large-scale use or to promote