Watersprout

... watersprout, or from the old typical bearing wood. / MR. KOETHEN. I have yet failed to know what a watersprout is. If you will give any healthy limb that comes from a tree plenty of light and air, it will develop into fruit[…]

Source: wiktionary

... watersprout may be tied without bending, it is probably better to select another cane, even of a less productive type, that will be less likely to be broken. Where a renewal is desired, such a cane may be pruned to a spur and in[…]

Source: wiktionary

... watersprout, F1 canes starting from a watersprout, F2 canes starting from one year old cane, which was grown on a watersprout.

Source: wiktionary

Watersprout scions are wedged into the cambium layer both above and below the damage in early spring when the bark is slipping. Grooves can be cut into the sound bark tissue to receive each end of the scions, or the gnawed edge can be[…]

Source: wiktionary