利用T型细胞质不育系,免除去雄配制玉米交杂种,已在生产上应用多年.但因遭受细胞质专化斑病小种的为害,T型不育系被迫停止使用.而利用核不育系配制玉米杂交种,一方面可解决某些病菌对细胞质专化侵染的问题;另一方面,可通过转育类型繁多的核不育系与资源广泛的自交系测配,从而选出优势特强的组合.这为利用玉米杂种优势提供了新的途径. T-type cytoplasmic male sterility (CMS) lines were used to eliminate maize hybrids, which has been used for many years in production, but T-CMS was forced to stop using due to the cytoplasm-specific races On the one hand, it can solve the problem that some germs on the cytoplasm are specialized in infection; on the other hand, it can be selected by transferring a large variety of male sterility lines and a wide range of inbred lines of resources Outstanding combination of advantages.This provides a new way for the utilization of maize heterosis.