当前水稻育种界，籼粳亚种间杂交优势利用，经广泛开拓利用研究，科学地总结出了Ｆ１优势利用及非Ｆ１优势利用的两大群类。且在各自的研究领域内，均育成了超级稻新品种（组合）。为全面开拓籼粳亚种间杂交非Ｆ１优势的利用，特对其进行了优势利用类型的研究。１材料与方法１ At present, rice breeding, hybrid utilization between indica and japonica subspecies has been extensively exploited and exploited, scientifically summing up two major groups that utilize advantages of F1 and non-F1. And in their respective fields of research, have developed a new super-rice varieties (combinations). In order to fully exploit the utilization of non-F1 superiority in inter-subspecific hybridization between indica and japonica, we conducted a special study on the types of superior utilization. 1 Materials and methods 1