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两千年前的种子为何能发芽成苗

更新时间: 2020-09-25 00:00:00     

1、种子自身要有一定的体积,且表皮要坚硬、结实,这样才能长期储存所要消耗的养分。比如豆科植物种子、莲子等;

2、种子周围的温度要低,比如国家种子库保存种子的温度就设为-20℃;

3、具有缺氧的保存环境;

4、还要干燥。没有这些适当的条件,种子就会霉烂或被炭化。

关键词: 年前 种子 为何 发芽

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