When worked at the top of a stem formed of the stock, the growth from the graft or bud must be pruned in a similar way.
If a piece of bark and cortex are torn off, the occlusion takes longer, because the tissues have to creep over the exposed area of wood; and the same is true of a transverse cut severing the branch, as may be seen in any properly pruned tree.
The others are generally pruned so as to combine a moderate supply of young wood with a greater or less number of fruit spurs.
This is the proper foundation for a good specimen, and illustrates how all such subjects should be pruned to keep them stocky and presentable in form.
The older plants will occasionally require the roots pruned in order to keep them in as small pots as possible without being starved.