A Complete Collection of 100000 Whys
Fav十万个为什么
为什么土豆会发芽？
土豆会发芽，主要基于以下几个原因：
1、休眠期结束：土豆块茎在收获后有一个休眠期，期间即使条件适宜也不会发芽。休眠期结束后，土豆内部的抑制物质分解，生长点开始活跃，为发芽做准备。
2、适宜的温度：土豆发芽需要适宜的温度。一般来说，温度在10-20摄氏度之间最有利于土豆发芽。过高或过低的温度都会抑制发芽。
3、充足的光照：光照是土豆发芽的另一个重要因素。光照可以促进土豆块茎中生长素的合成，生长素是促进植物生长和发芽的重要激素。
4、充足的水分：水分是土豆发芽的必要条件。土豆块茎需要吸收足够的水分，才能启动生长过程，开始发芽。
总结：土豆会发芽，主要是由于休眠期结束、适宜的温度、充足的光照和充足的水分共同作用的结果。这些因素使土豆块茎内部的生长点开始活跃，最终导致发芽。
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