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1.胚乳原核在授粉24～36小时内完成一次分裂。 2.胚乳核的形成属游离核型、进行有丝分裂。 3.胚乳细胞的细胞膜的形成靠二次纺锤丝。 4.在胚乳细胞的液胞里贮藏着Amylopectin。 5.卵核在授粉24小时左右受精,但约有8天的停滞期。 6.胚周围的胚乳细胞被吸收消失,形成空隙,其内充满粘液。 7.授粉4周后着生在胚先端的子叶进行分离。 8.胚的分化是在授粉4周时结束,但继续进行伸长生长,授粉8周后胚长340μ左右。
1. Endosperm prokaryotic in the pollination within 24 to 36 hours to complete a division. 2. The formation of endosperm nucleus is a free karyotype for mitosis. 3. Endosperm cell membrane formation by secondary spindle wire. 4. Amylopectin is stored in the endosperm cells. 5. Ovum fertilized around 24 hours of fertilization, but about 8 days of stagnation. 6. Endosperm cells around the embryo are absorbed and disappear, forming a gap, which is full of mucus. After 4 weeks of pollination, the cotyledons at the apex of the embryo were separated. 8. Differentiation of embryos ended 4 weeks after pollination, but continued to grow. After embryo pollination for 8 weeks, the embryo length was about 340μ.