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把水仙根剪断水仙根还能长吗
更新时间: 2020-09-19 00:00:00  

水仙根剪断后,水仙根不能继续生长。

根的根尖是是根的生长、延长及吸收水分的主要部分。根尖分成根冠、分生区、伸长区和成熟区。根生长最快的部位是伸长区,伸长区的细胞来自分生区。已经剪断的根不能继续生长,根的生长靠根尖分生区产生新细胞、伸长区的细胞伸长,水仙根被剪断后,留在水仙球上的断根失去分生区和伸长区,不能继续生长,只能由根源基长出新根。

关键词: 水仙

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