self-sterility

常见例句

• Selfing is inhibited by genetic self incompatibility and also by the fact that within a single flower the stigma is receptive before the anthesis are ready to shed pollen.
  由于遗传上的自交不亲和性以及花中柱头只能在花粉准备撒粉以前接受花粉，因而防止了自交。
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