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对迟熟中籼ＩＲ１５２９６８３２的５０个早熟突变系进行分类，并应用相关和回归分析方法，研究了迟熟品种的早熟突变系的１１个农艺性状之间的相互关系和遗传参数，以及这些性状对熟期的影响。结果表明：１早熟突变系可分为早熟中稻和中熟中稻两种生态遗传类型。２早熟突变体的抽穗期与千粒重呈极显著负相关。３与早熟突变体抽穗期关系密切的性状，按直接作用大小顺序排为：千粒重＞株高＞不实率。４早熟突变体的株高、千粒重和生育期有较高的广义遗传力。
Fifty early-maturing lines of late maturing mid-season indica IR15296832 were classified and their correlations and regression analysis were used to study the relationship and inheritance among 11 agronomic traits of late maturing lines Parameters, and the impact of these traits on maturity. The results showed that: 1 Early-maturing mutants can be divided into two types of early-maturity and middle-maturity of middle-aged rice ecological genetic type. The heading date of early maturing mutants was significantly and negatively correlated with 1000-grain weight. 3 and early maturity of the heading date closely related traits, according to the direct effect of size order: 1000-grain weight> plant height> false rate. 4 Early maturity mutant plant height, grain weight and growth period have a higher general heritability.