pollen

• Various procedures have been advocated for the storage of pollen .
  对于花粉的贮藏已经提出过各种不同的方法。
• During pollen formation a compound is produced naturally in the anther .
  在花粉形成过程中，花药内天然产生一种化合物。
• Activation of nucellar cells by discharge from the pollen tubes has been claimed .
  认为由花粉管的流出物能使珠心细胞活化。
• Pollination is the mechanical transfer of pollen from the anthers to the sti gmas .
  授粉是机械地把花药里的花粉传送到柱头上去。
• It could be seen as an arrangement to have flowers ready when pollen arrives .
  可以把它看成花粉到来时花早已作好准备的一种配合。
• The degeneration of mitochondria is one of the earliest events in pollen abortion .
  线粒体的退化是花粉败育中最早发生的现象之一。
• The pollen flows freely without sticking to the sides of a glass storage container .
  花粉在玻璃容器内能自如滑动而不会贴着于器壁。
• On the plus side, wind dilutes and scatters air pollutants, and carries pollen .
  从好处来说，风能稀释和驱散空气中的污染物质，传播花粉。
• The pollen can be carried aloft and travel great distances in the upper air stream .
  花粉能被带到高处，并在高层的气流中被带至很远的距离。
• The pollen is shed directly on the stigma, resulting in a high percentage of self fertilization .
  花粉直接散落在头上，因而自花受精百分率高。