self-pollination

释义

n.

自花授粉繁殖；自花受粉

网络

自花传粉；自授粉；自我授粉

在例句中理解 6 句

1. Until now, the mechanism of stigma closure and the hypotheses of avoiding self-pollination have been still uncertain.

   到目前为止，对柱头闭合的机制及其避免自交的假说还存在许多争议。

2. Self -pollination , in general, produces lower percentages of seeds than controlled cross-pollination.

   与自然传粉和杂交控制传粉相比，自花传粉常常导致较低的结实率。

3. Rice is the same as male and female flowers of crops, self-pollination, it is difficult to remove a male flower engage in a hybrid.

   因为水稻是雌雄同花的作物，自花授粉，难以一朵一朵地去掉雄花搞杂交。

4. Self - pollination , and subsequently self- fertilization , in orchards always takes place to some extent .

   在果园中，常常有某种程度的自花传粉和随后地自花授精。

5. Homogamy The condition in flowers in which the anthers and stigmas ripen at the same time, so encouraging self-pollination.

   指一朵花中的花粉囊和柱头同时成熟的现象。

6. The causes and settling method of low seed setting rate of platycodon grandiflorum by self-pollination

   桔梗自花传粉结实率低的原因及其解决方法