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- The flower is polygamous-andromonoecious with staminate and hermaphrodite flowers on the same plant, fertile and steril pollen grains are produced respectively. 以光学显微镜、穿透式及扫描式电子显微镜，并配合组织染色观察，研究台湾栾树的(1)雄花及两性花早期花部发育与花序上之性别表现；
- Not only the staminate and hermaphrodite flowers have functionally and structurally difference, but also the fertile and steril pollen grains produced respectively. 雄花及两性花除了在构造、功能上有差异之外，其产生的花粉粒亦有所不同。
- There is a high pollen count in the air. 空气中有很高的花粉计数。
- The fertility performance was all better,the sterile pollens were mainly typic power sterile. 育性表现均较好，不育花粉以典败为主，不育性稳定，花粉不育率高；
- sterility pollen 不育花粉
- 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。
- The structural characteristics of the microfilaments were revealed in sterile pollenes of CMS, CHA and mature fertile on wheat by Coomassie brilliant blue R250. 以T型细胞质雄性不育(CMS)、化学杂交剂(CHA)诱导的雄性不育及成熟可育的花粉粒为材料,用考马斯亮蓝R250显示细胞内微丝的方法,观察分析了3种类型花粉粒内微丝结构的变化。
- 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。
- The innermost wall of a spore or pollen grain. 内壁孢子或花粉粒最深处的壁
- Pollen sterile blossoms lack normal turgor. 花粉不育的花朵缺乏正常的膨压现象。
- The disease can cause sterility in men and women. 这种疾病可能导致男女不育。
- The samples also passed the sterility test. 样本同时亦经化验证实不含细菌。
- 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
- Cytoplastic male sterility(CMS) in higher plants is a maternally inherited inability to produce functional pollen. 高等植物中的细胞质雄性不育（CMS）是一种不能产生功能性花粉的母性遗传的性状。
- Both the pollen grains and the gynoecia are active. 花粉粒和雌蕊都具有活力。
