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怎么判断是不是桑树

更新时间: 2021-01-16 05:07:50     

1、桑树雌雄异株,分辨雌雄桑树,可以通过花来判断。

2、雄花松散,开花后不久就会落了,雌花则不会。

3、雌雄桑花都是腋生,雄花是下垂的柔荑花序,每朵小花会伸出4枚雄蕊,靠风媒传粉;雌花则是穗状花序,柱头有茸毛或突起,这是为了最大限度接受花粉,最后才好结出果子。

关键词: 怎么 判断 桑树

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