运用常规石蜡制片法,在光学水平观察了淀粉在大麦胚珠发育中的消长动态。结果表明,淀粉粒的聚积出现三次高峰,即大孢子母细胞减数分裂之前,受精之前和种子成熟时期。认为淀粉的积累预示着活跃的代谢活动。珠心中具贮藏淀粉,说明短命珠心不仅作为转运组织,而且在一定时期具贮藏功能。 The growth and development of starch in the development of barley ovule were observed at optical level by the conventional paraffin method. The results showed that there were three peaks of accumulation of starch grains, that is, megaspore mother cell meiosis, before fertilization and seed maturity. Starch accumulation is predicted to indicate active metabolic activity. Pearl with the storage of starch, indicating short-lived beads not only as a transport organization, but also in a certain period of storage.