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甘薯秧苗每一个叶节上都有一个腋芽和两个根原基,用仅带有1叶1芽的单叶节茎段扦插繁殖,也能生根发芽成苗,且繁殖率比常规扦插繁殖可提高10倍以上。具体方法是:
Sweet potato seedlings have one axillary bud and two root primordia on each leaf node. The single-leaf stems with only 1 leaf and 1 bud cuttings can also be rooted and sprouted into seedlings, and the propagation rate can be increased than that of conventional cutting propagation 10 times more. The specific method is: