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收获前的新种籽几乎不能发芽的要经过一段时间的贮存．发芽率会明显增高。原来种籽成熟收获以后还有个休眠或后熟的过程。处于休眠状态的种籽是不易发芽的。下面介绍几种作物休眠期。在各类作物的种籽中麦类的休眠期较长。春麦的种籽的休眠期是川～4O天．冬麦会更长一些。玉米
New seeds before harvest hardly germinate for some time to be stored. Germination rate will be significantly higher. After the original harvest of mature seeds there is a dormant or after-ripening process. The dormant seed is not easy to germinate. Here are some kinds of crop dormancy. The dormancy of wheat is longer in the seeds of various crops. The dormant period of spring wheat seed is Sichuan ~ 4O days. Winter wheat will be longer. corn