Division

Division is one method of vegetative propagation. An aggregate of roots is cut into pieces and the pieces planted as separate parts. Rhubarb, sweet potatoes, and dahlias are propagated this way. In the case of dahlias, care must be given to ensure that a bud is present on each root piece. Many species of plants have so many buds on the roots that special attention is not required. White potatoes are derived not of roots but of underground stems; they are always propagated by dividing the tubers and leaving a bud on each tuber piece. Scales that grow at the base of bulbs such as lily bulbs can also be divided. Because many root pieces can produce adventitious stems, root cuttings are commonly used by nurseries for propagation purposes. Cherries, plums, and figs are all produced this way.

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