种子比重
At different growth stages, the change specific leaf weight and chlorophyll content in the soybean types were similar, which were lower at the seedling stage and the seed-podding stage, higher at the blooming stage, peaked at the seed-filling stage.
从生育期的变化来看,3种类型大豆叶片比叶重和叶绿素含量变化基本一致,苗期和结荚期较低,开花期较高,最大值出现在鼓粒期;
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