Grapes -- Varieties -- United States; Viticulture -- United States
"The preparation and grading of stocks and scions are exactly the same
for this method as for the tongue graft.
"Stock and scion are cut at an angle of 45 degrees. A piece of
galvanized iron wire two inches long is then pushed one inch into the
firmest pith. This will usually be the pith of the stock, but it will
depend on the varieties being grafted. The scion is then pushed on to
the wire and pressed down until it is in contact with the stock. If
the cuttings have large pith it is better to use two pieces of wire,
one placed in the stock first and the other in the scion.
"The length of wire to use will vary with the size and firmness of the
cuttings, but 2 inches will usually be found most satisfactory. Wire
of No. 17 gauge is the most useful size."
_Making bundles._
"If the grafts are to be planted out directly in the nursery, they may
be simply laid in boxes or trays, covered with damp sacks, and carried
out to be planted as soon as made. It is usually better, however, to
place them for several weeks in a callusing bed before planting. In
this case it is necessary for convenience of handling to tie them up
into bundles. No more than twenty grafts should be placed in a bundle,
and ten is better. If the bundles are too large there is danger of the
grafts in the middle becoming moldy or dry.
"A stand is very convenient. It consists of a piece of board 12
inches, on one end of which is nailed a cleat 6 inches by 4 inches and
under the other end a support of the same size. Two 4-inch wire nails
are driven through the board from below, 4 inches apart and 5 inches
from the cleat. Two other 4-inch nails are driven similarly at 1-1/2
inches from the other end. The grafts are laid on this stand with the
scions resting against the cleat, and are then tied with the two
pieces of bluestoned raffia that have previously been placed above
each pair of nails. This arrangement insures all the scions, and
therefore the unions, being at the same level, and puts both ties
below the union where they will not strain the graft. The tying is
more expeditious and less liable to disturb the unions than if the
bundles are made without a guide.
"A skillful grafter will make about one hundred tongue grafts on
cuttings per hour, or from sixty-five to seventy-five per hour if he
does the tying as well. Wire grafts can be made at the rate of two
hundred and fifty or more per hour, and by proper division of labor
where several grafters are employed this number can be easily
exceeded. These estimates do not include the preparation and grading
of the cuttings."
_Grafting rooted cuttings._
Public-domain text, read in full here on John Shaqi.
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