对KS—14、KS—9、KS—7三个光敏核不育系进行杂交亲和性测验,结果表明:这三个光敏核不育系与籼稻及广亲和品种(品系)有较好的亲和性,与一般粳稻品种(品系)不和;但与籼稻或广亲和品种(品系)的亲和性仍是相对有限的,三个光敏核不育系对相同父本的亲和性也有一定的差异。从测验结果还可看出,“三系”的不育系的育性恢复和光敏核不育系的育性恢复,是分属两个不同范畴的生物现象。育种上配组某一组合时,亲和性测验是不可缺少的坏节。 The results of hybridization compatibility test showed that the three photoperiod-sensitive genic male sterile lines had good compatibility with indica and broad compatibility varieties (lines) , But not compatible with common japonica rice varieties (lines). However, the compatibility with indica or broad compatibility varieties (lines) is still relatively limited. The three parents of the same photosensitive male sterile line There are also some differences in sex. It can also be seen from the test results that the fertility restoration of the “three lines” sterile lines and the fertility restoration of the photosensitive male sterile lines are biological phenomena belonging to two different categories. Affinity testing is an indispensable nuisance when breeding a combination of groups.