With the increase of density, the distant between the seedlings was closer, the expanding of leaf was restrained, so the dry weight of seedling was decreased.
随密度的增加，植株间距离减小，叶面积的扩展受到抑制，单株干物质量减少；
With the increase of density, the distant between the seedlings was closer, the expanding of leaf was restrained, so the dry weight of seedling was decreased.
随密度的增加，植株间距离减小，叶面积的扩展受到抑制，单株干物质量减少；
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