... bird pollination 鸟媒性 free pollination 自由传粉,自由授粉... controlled pollination 人工授粉 ...
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... entomophilous pollination 虫媒传粉 free pollination 自由传粉; 自由授粉 honeybee pollination 蜜蜂授粉 ...
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intervarietal free pollination 品种间自由异花传粉
intervarietal free cross-pollination 品种间自由异花传粉
free cross pollination 自由异花传粉
In addition, the analysis showed that the forced self-setting rate is lower than the free pollination.
另外，经分析可知，强迫自交的结实率比自由授粉的结实率要低。
This is sobering because it suggests that pollination is vulnerable even in a relatively pristine environment that is free of pesticides and human disturbance but still subject to climate change.
这是发人深省的，它表明授粉过程极易被打乱，甚至在一个相对平静安定的环境，没有农药和人为干扰，但仍然受到气候变化的影响。
There ware two cell proembryo and some endosperm free nucleuses in the embryo sac 7-8 days after pollination;
授粉后7-8天，在胚囊中见到二细胞原胚及数个胚乳游离核。
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