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本试验对２个由６０Ｃｏγ射线辐照产生的苗期白化突变体Ｗ２４和Ｗ２７的叶色转换过程及其稳定性、农艺性状和配合力特征进行了研究。结果表明，２个突变体的叶色突变在不同生长温度下均可表达，叶色特征基本相似。第１～３张叶片在伸出时表现白化，但在随后的生长过程中逐渐转绿，可转绿叶片的面积，第１叶约为４０％，第３叶约为９０％，第４叶开始表现正常绿色。突变体与亲本２１７７Ｓ的柱头外露率及大多数农艺性状无显著差异，并保持了亲本的育性转换特性和配合力，从而表明，叶色突变性状可作为选择标记，在苗期可排除杂交种子中的自交种子，而对杂交优势表达和制种没有显著的负效应。
In this experiment, the leaf color conversion process and the stability, agronomic traits and combining ability of two white albino mutant W24 and W27 irradiated by 60Coγ-ray were studied. The results showed that the leaf color mutant of two mutants could be expressed under different growth temperature, and the leaf color characteristics were similar. The 1st to 3rd leaves showed whitening when they were stretched out, but turned green gradually during the subsequent growth. The area of the green leaves turned to be about 40% for the first leaf, about 90% for the third leaf, and the fourth leaf Began to behave normally green. There was no significant difference in stigma exsertion rate and most agronomic traits between mutant and parent 2177S, and the fertility conversion and combining ability of the parents were maintained, indicating that the leaf color mutant trait can be used as a selection marker to eliminate hybrid seed at seedling stage In the selfing seeds, but no significant negative effect on hybrid dominant expression and seed production.