Grafting Walnuts.
In cleft grafting walnuts is it necessary to use scions with only a leaf
bud, or with staminate or pistillate buds? Is cutting the pith of the
scion or stock fatal to the tree?
In grafting walnuts it is usual to take shoots bearing wood buds, and
not the spurs which carry the fruit blossoms, although a part of the
graft containing also a wood bud can be used, retaining the latter.
Cutting into the pith of the scion or of the stock is not fatal, but it
is avoided because it makes a split or wound which is very hard to heal.
For this reason it is better to cut at one side of the pith in the
stock, and to cut the scion so that the slope is chiefly in the wood at
one side of the pith and not cutting a double wedge in a way to bring
the pith in the center.
Grafting Nuts on Oaks.
I have 10 to 15 acres of black oak trees which I wish to graft over to
chestnuts. Can grafting be done successfully?
Some success has been secured in grafting the chestnut on the chestnut
oak, but not, so far as we have heard, on the black oak. But grafts on
the chestnut oak are not permanently thrifty and productive, though they
have been reported as growing for some time. The same is true of English
walnut grafts on some of the native oaks.
Grafting Walnut Seedlings.
Would it be proper to graft one-year California black walnut seedlings
that must also be transplanted?
As the seedlings must be moved, plant in orchard and graft as two or
three-year-olds, according to the size which they attain.
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