Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting: Guelph, Ontario, September 3, 4, 5, 1947
Science
Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting: Guelph, Ontario, September 3, 4, 5, 1947
Northern Nut Growers Association -- Periodicals; Nut trees -- Periodicals; Nuts -- Periodicals
"I believe that grafted chestnuts growing in frost pockets are most
likely to develop faulty unions; possibly frost injury to immature cells
at the junction point may occur. Dr. Crane mentions a similar failure of
unions between Persian and black walnuts on the Pacific Coast."
Dr. Crane: "What cut did you use in grafting those chestnuts?"
Stoke: "Modified cleft. In using Dr. Morris' bark slot graft I find it
best to leave just a little of the cut face of the scion wedge above the
top of the stock. This, with top of the stock cut sloping away from the
scion, as illustrated, promotes quick healing with no 'die-back.'"
Dr. Smith: "Is that top slanting?"
Stoke: "Yes, I cut it slanting."
Dr. MacDaniels: "That is a good graft for walnuts, too."
Note: Mr. Stoke showed the group a picture of a mockernut tree in one of
his fields which he had girdled to kill it. The tree lived four years
and during those years the moisture had to go up through the inner wood.
The substance of Mr. Stoke's talk, together with illustrations, may be
found on page 99 of the 1946 report.
Importance of Bud Selection in the Grafting of Nut Trees
G. J. KORN, Kalamazoo, Michigan
For many years the fruit growers have been improving the qualities of
their fruits in several ways. The early pioneers of our country selected
the best fruits from seedling trees. Chance seedlings that were found in
pastures, by roadsides, or possibly in some out-of-the-way place,
selected because of some special quality or group of qualities, still
dominate our commercial plantings of fruits and nuts. Several of the
apple varieties to be found in the market today are from these chance
seedlings.
In more recent years some of our agricultural colleges have been
breeding fruits. Such breeding has given us several of our more
promising named varieties. In this way a great improvement has been
brought about in our fruits.
Environment too appears to have played an important part in making
changes in fruits and nuts. Nuts that are extremely hardy in the more
northern latitudes, appear to have developed this hardiness gradually
throughout many generations. Because of this quality we are now able to
select varieties that are most likely to succeed in any particular
locality.
More rapid and satisfactory methods of improving our fruits and nuts
have been brought about through breeding. This development of the
science of plant breeding has made it possible to blend the good
qualities of two seedlings into a new variety. Man does not have to
follow nature's slow hit-and-miss method of developing more desirable
qualities in her products. Controlled breeding, as brought about by man,
produces faster and more satisfactory results. Man's improvement over
nature has come about through his choice of the qualities to be blended,
and his ability to bring together two parents from widely separated
parts of the earth, if necessary.
Public-domain text, read in full here on John Shaqi.
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