The cion is made with about two and one-half inches of Internode below the bud and one-half inch above, a sharp knife being the best tool for making the cuts.
"Manual of American Grape-Growing"
U. P. Hedrick
The unit of pruning is a short fruit cane of four to five Internodes, accompanied by a renewal spur of one Internode.
"Manual of American Grape-Growing"
U. P. Hedrick
In all cases a full Internode has been left above the top bud.
"Manual of American Grape-Growing"
U. P. Hedrick