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对５个水稻广亲和品种（ＷＣＶ）进行亲和性与亲和谱的研究结果表明：ＣＡ５２９的亲和谱最广，０２４２８的亲和谱最窄，其亲和范围：ＣＡ５２９＞８５０４＞０２９＞Ｗ．Ｌ．１３１２＞０２４２８。籼粳交Ｆ１结实率与Ｆ２平均结实率密切相关，ＷＣＶ参与籼粳交能提高杂种后代结实率的选择效果。
The affinity and affinity spectra of five broad compatibility varieties (WCV) of rice showed that CA529 had the broadest affinity spectrum and the narrowest affinity spectrum of 02428 with the affinity range of CA529> 8504> 029 > W. L. 1312> 02428. The seed setting rate of F1 hybrids between indica and japonica was closely related to the average seed setting rate of F2, and the effect of WCV on indica-japonica hybrid rice could improve the seed-setting rate of hybrids.