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- There is a high pollen count in the air. 空气中有很高的花粉计数。
- pollen embryogenesis 花粉发生
- Stamen is in the middle of a flower and may produce pollen. 雄蕊长在花的中央，能产生花粉。
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
- The workers have little pollen baskets on their legs. 工蜂脚上有装花粉的小"篮子"。
- Anther is a part of a flower that contains the pollen. 花药是花的雄蕊上带花粉的部分。
- Cysts are the result of faulty embryogenesis. 囊肿由胚胎发育不全引起。
- The innermost wall of a spore or pollen grain. 内壁孢子或花粉粒最深处的壁
- Somatic Embryogenesis of Aesculus hippocastanum L. 欧洲七叶树体细胞胚胎发生研究。
- Pollen sterile blossoms lack normal turgor. 花粉不育的花朵缺乏正常的膨压现象。
- The pollen is shed directly on the stigma. 花粉直接散落在柱头上。
- Some people have an allergy to pollen. 一些人对花粉有过敏反应。
- Nectar and pollen are very nutritious. 花蜜和花粉是很有营养的。
- Pollinated by wind-dispersed pollen. 风媒传粉的通过风的飘散来传播花粉的
- The process itself is referred to as adventive embryogenesis. 其过程本身称为不定胚胎发生。
- Both the pollen grains and the gynoecia are active. 花粉粒和雌蕊都具有活力。
- Seeds and pollen are spread by the wind. 种子和花粉是随风传播的。
- There is a high pollen count inthe air. 空气中有很高的花粉计数。
- Histological Studies of Somatic Embryogenesis in Eruca sativa Mill. 芸芥体细胞胚胎发生的组织细胞学研究。
- A study on pollen morphology of the genus Vitis L. 葡萄属植物花粉形态的研究。
