artificial pollination

基本解释

Due to the size of the mango trees (10 to 30mtrs. ), artificial pollination is not an easy task. It requires large scale of intensive labor.
由于芒果树的高度（10~30公尺），人工授粉并不是一件容易的事，需要大量的熟练劳力。
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The results oft-test showed that there was significant difference of the seed plumpness between the artificial pollination seeds and the spontaneous pollination.
t 检验表明，经人工辅助授粉产生的种子与自然授粉产生的种子在种子饱满度方面存在显著差异。
Furthermore, the temperature can elongate stigma obviously and reduce self-fertilization ratio apparently, but artificial pollination can improve the self-fertilization rate with long stigma.
此外，高温能促进柱头外露棉花柱的伸长，且会降低自交成铃率，但人工辅助授粉可以提高长花柱类的棉花自交成铃率。