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关于向日葵发芽的问题

更新时间: 2020-09-27 00:00:00     

种子耐低温能力很强,当地温稳定,在2摄氏度以上,种子就开始萌动;4到5摄氏度时,种子能发芽生根;地温达8到10摄氏度时,就能满足种子发芽出苗的需要。发芽的最适温度为31到37摄氏度,最高温度为38到44摄氏度。向日葵在整个生育过程中,只要温度不低于10摄氏度,就能正常生长。在适宜温度范围内,温度越高,发育越快。

关键词: 关于 向日葵 发芽 问题

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