Northern Nut Growers Association Report of the Proceedings at the Fifth Annual Meeting: Evansville, Indiana, August 20 and 21, 1914
Science
Northern Nut Growers Association Report of the Proceedings at the Fifth Annual Meeting: Evansville, Indiana, August 20 and 21, 1914
Northern Nut Growers Association -- Periodicals; Nut trees -- Periodicals; Nuts -- Periodicals
Root pruning, where it can
be practiced to advantage, will be found more effective still. I have
never known newly transplanted stocks or those which had the tree digger
run under them, to bleed freely when grafted, and we have sometimes
gotten a good stand of grafts on such stocks, but such stocks may not
always have sufficient sap for the best results in grafting, if they
have been recently transplanted or root pruned. Fall planted As a
matter of experiment, I want to try budding both the pecan and walnut by
this method the present season, but I don't expect any results from
walnut buds set in this way. For the information of those who may wish
to try this method the present season, I will say that we cut the
shagbark buds a little heavier than we cut apple or pear buds. The wood
was left in the bud. The bark on the stock was split and the buds
inserted just as in any other shield budding. The buds were wrapped very
firmly, with waxed muslin, just as we wrap patch buds.
Our success with grafting the English or Persian walnut, under northern
conditions, has been variable and not very satisfactory. With good
scions and good stocks and other favorable conditions, we have sometimes
gotten over 90 per cent to grow, but the stand is more often much below
this and the present season we did not average over 25 per cent. The
fact that we get good stands of grafts when all conditions are right, is
not only encouraging but demonstrates that the English walnut can be
grafted under eastern or northern conditions with at least a fair degree
of certainty as to results, just as soon as we learn the causes of our
failures and are thus able to apply the remedy. Perhaps the greatest
drawback to the successful grafting of the English walnut is the
difficulty of obtaining good scions. The annual growth of the walnut is
much more pithy than that of the pecan or shagbark, and for this reason,
only a comparatively small portion of the growth is available for
grafting purposes if we are able to select scions that will give the
best results. Like the pecan and shagbark, the two-year wood makes the
best scions for grafting, provided that the wood has good buds on it,
but under our conditions those buds that lie dormant are usually shed
off during the summer and few good buds remain that will start quickly
into active growth. It is true that adventitious buds will often form
where these buds have shed off, and these will push into growth if the
stock is kept free from sprouts, but usually too late in the season to
make good trees, and keeping the seedling stock free from sprouts when
it should be in leafage is more or less weakening and injurious and the
grafts, starting into growth late in the season, do not mature and ripen
their growth up properly before frost and are quite likely to be injured
by early November freezes, unless they have some protection. To graft
the English walnut with unvarying and satisfactory results, under
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