亚籼粳稻杂交能较好地克服籼粳杂交所不易克服的缺点,比较容易选育出高产更高产的品种。在选材上两亲本中必须有一籼粳杂交的后代,具有籼稻血缘,另一亲本必须具有耐寒基因。在选育过程中,应严格淘汰基因型早衰的材料。 Indica-japonica hybridization can overcome the shortcoming that indica-japonica hybrid is not easily overcome, and it is easier to breed more high-yielding and higher-yielding varieties. In the selection of the parents must have a cross between indica and japonica offspring, with indica blood, another parent must have cold tolerance genes. In the breeding process, should be strictly eliminated premature aging genotype material.