对生产上常用的７个玉米杂交种的种子水分含量及相关性状进行了分析，结果认为玉米籽粒水分的遗传规律符合加性—显性模型，且加性方差比重较高，并且存在部分显性作用。籽粒水分含量的遗传变异率较大，广义遗传力值较小。杂交种籽粒水分含量与其母本呈正相关。 The results showed that the genetic law of water content in maize accords with the additive-dominance model, and the proportion of additive variance is high, and there is a partial dominance on the seed moisture content and related traits of seven maize hybrids commonly used in production. effect. The genetic variation rate of grain moisture content is larger, the generalized heritability value is smaller. The moisture content of hybrid seeds was positively correlated with its female parent.