Namely the use of pruning tools saw artificially (or cut) wound on the branches of the process, at the beginning of the growing point or sheath to the nature of the base unit, and in wound healing effect prior to impede or slow the transport of nutrients and water up and down the guide, thereby adjusting the growing, and promoting growth or slow potential into action, said the flower scratched. If scratched appropriate regulation or control its results are quite remarkable, and its role is: can artificially regulate growing shoots in April (ie strong and the weak), to balance its branch-related system, in particular the vertical relationship between the tree; can weaken growing, promote flowering, its mechanism is due to the wound ring engraved ---- caused varying degrees of rejection can Assimilate (including soluble sugar) and, therefore, to varying degrees, increase the concentration of cells in the tissue shoots so as to promote and accelerate the process of flower bud differentiation. Also by sawing injury (such as: even three saws, etc.) under the back part of the backbone of the branch, it can increase the opening angle, to restrain the growth potential (Wong Chi), to promote the results, and to increase the energy use of space.