The cotyledons of the mature embryo are either green, yellow or chalky yellow.

成熟胚的子叶是绿色, 黄色或浅黄色.

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These abnormalities would cause the abnormal structure of mature embryo sac.

这些异常可能最终导致多种结构异常成熟胚囊的形成.

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Some abnormal mature embryo sacs are observed.

于成熟胚囊期观察到发育异常的胚囊.

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In mature embryo sac, the nucellar cap is composed of 2～7 layer of cells.

珠心帽在胚囊成熟时, 具有2～7层细胞.

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