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在对６个水稻亲和性测验品种进行统一测交鉴定的基础上，研究不同环境条件对杂种育性的影响。试验重复２～３ａ。结果表明：多数广亲和品种的亲和性具有明显的籼粳倾向性；亚种间杂交Ｆ＿１的小穗育性在组合间的变异较品种间杂交组合间的变异大；亚种间杂交Ｆ＿１的育性比品种间杂交Ｆ＿１更易受环境条件的影响。相对而言，密矮６４Ｓ、培矮６４Ｓ、０２４２８、Ｄｕｌａｒ等４个广亲和品种所配杂种Ｆ＿１的育性在不同组合间的变异较小，并且受环境条件的影响也较小，表明其余和性表达的稳定性较好。
Based on the identification of 6 rice compatibility test varieties, the effects of different environmental conditions on the hybrid fertility were studied. Test repeated 2 ~ 3a. The results showed that the affinity of most broad compatibility varieties was obviously indica - japonica preference. The variation of spikelet fertility among F1 hybrids among subspecies was greater than that between F1 hybrids. The intersubspecific F1 Is more susceptible to environmental conditions than the cross between cultivars F_1. Relatively speaking, the fertility of F_1, a hybrid of four widely inbred varieties, such as Mianyi 64S, Pei’ai 64S, 02428 and Dular, showed less variation among different combinations and was less affected by environmental conditions, indicating that the rest And the stability of sexual expression is better.