Amyloplasts may fuse into a large starch mass and hydrolyze gradually.In comparison with the trefoil stage, amyloplasts contain few DNA after 65 days of germination.

• 种子萌发后65天是子叶贮藏物质消耗末期，淀粉质体DNA的含量比萌发后20天的三叶期明显减少。