【摘要】 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。更多还原

【Abstract】 For understanding the stability of compatibility expressed in hybrid fertility,8 wide compatibility varieties(WCV)were crossed to 3 indica testers and 3 japonica testers respectively.All F1 hybrids were apprasied under different seeding dates for2～3years,All the data was statistlcally analysed according to variation on spikelet fertility of the hybrids.The results obtainedwere as follows:(1)The cornpatibllity in most WCVs was clearly tendentions to either indica or japonica rice variety.(2)Varia-tion expressed in spikelet fertility aniong the hybrids of inter-subspecies combinations were larger than that among the hybrids otintervarleties combination,(3)The spikelet fertility of the hybrHs of intert-subspecies combinations was more susceptible to envi-ronmental factors than of the hybrids of intervarietles combination. Comparatively speaking the hybrid fertllity of Miai64S,Peiai64S,02428 and Dular were more stable in different combinations under different environrnents.更多还原