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植物的种子需要在适宜的条件下才能萌发,这是植物的重要生理机能。有一些植物的种子,收获后在适宜的环境条件下并不萌发,等过了一段时间后,遇到适宜的环境条件才能正常萌发。这种现象称之为种子的休眠。习惯上常以80%的种子能正常萌发作为通过休眠的标准。休眠期就是指种子从收获时起至发芽率达到80%时所经历的时间。大多数植物都有休眠期,只是时间长短差异较大。西瓜种子是否有休眠期?尚未见有报道。为了摸
Plant seeds need to germinate under suitable conditions, which is an important physiological function of plants. Some plants have seeds that do not germinate under appropriate environmental conditions after harvesting. After a certain period of time, they can germinate properly under suitable environmental conditions. This phenomenon is called seed dormancy. It is customary to germinate as often as 80% of the seeds as a criterion for passing sleep. Dormancy refers to the time it takes for the seed to reach 80% germination rate from harvest. Most plants have a dormant period, but the difference between the length of time. Watermelon seeds have a dormant period? There have been no reports. To touch