自花受精

业已知道，针叶树自花不育是由于自花受精后胚凋萎。

It has been known that the self-sterility of conifers results from embryo collapse after self-fertilization .

有一些两性花植物几乎完全是异花受精，而另一些主要是自花受精。

Some of these are almost entirely cross-fertilized , some mainly self-fertilized .

橄榄树是自花受精的，附近不需要有其他植株。

Olives are self-fertile and don 't need another plant close by .

多数植物具有一个防止自花受精的自交不亲和系统，但有些植物是自花能稔的。

Many plants have a self-incompatibility system stopping self fertilization , but others are self-fertile .

一些植物不定期地进行自花受精。

Some plants reseed themselves indefinitely .

花粉直接散落在头上，因而自花受精百分率高。

The pollen is shed directly on the stigma , resulting in a high percentage of self fertilization .

大多数关于种子园理论，是以假定能发生随机交配和自花受精而不会成为严重问题为依据的。

Most seed orchard theory is based on the assumption that panmixis will occur and that selfing will not be a serious problem .