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皇冠梨的授粉方法

更新时间: 2021-02-03 18:44:29     

皇冠梨的授粉方法多为人工授粉,具体步骤如下:

1、将雄花蕊直接对到雌花蕊上面即可;

2、用毛笔沾上雄花蕊的花粉,将它涂抹到雌花蕊上面。

3、授粉后,花粉粒在柱头上萌发。随着花粉管的伸长,营养核与精核进入胚囊内。随后1个精核与卵细胞受精结合成合子,将来发育为胚。另1个精核与2个极核受精结合为胚乳核,将来发育成胚乳,故这一过程被称为双受精。通过随后双受精最后发育成种子。

关键词: 皇冠 授粉 方法

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