Stunted varieties were generally chosen, particularly if they had the side branches opposite or regular, for much depends upon this; a one-sided tree is of no value in the eyes of the Chinese.
Robert FortuneNature generally struggles against this treatment for a while, until her powers seem in a great measure exhausted, when she quietly yields to the power of the art.
Robert FortuneThe main stem was then in most cases twisted in a zigzag form, which process checked the flow of the sap, and at the same time encouraged the production of side branches at those parts of the stem where they were most desired.
Robert Fortune