Northern Nut Growers Association Incorporated 39th Annual Report: at Norris, Tenn. September 13-15 1948
Science
Northern Nut Growers Association Incorporated 39th Annual Report: at Norris, Tenn. September 13-15 1948
Northern Nut Growers Association -- Periodicals; Nut trees -- Periodicals; Nuts -- Periodicals
The perishable nature of the nuts of the Chinese chestnut has probably
been the greatest drawback to an earlier acceptance of this crop as an
adjunct to the horticulture of the Southeast. It has been only in the
past few years that enough has been learned about the harvesting and
storage requirements to permit the storing of these chestnuts so that
they can be marketed in an orderly manner either for eating or for seed
purposes. Storage losses through periods up to six months have been held
to less than 10% for a mixture of nuts from all the trees at Philema.
Storage tests of nuts from individual trees have shown a range in
keeping quality from no loss after six months' storage to nearly 100%
loss. By culling out the trees producing nuts with a high rate of
spoilage under the best storage conditions it should be possible to
reduce storage losses to a minimum. Every grower of seedling trees
should follow this same process of culling out or topworking trees
producing nuts of poor keeping quality if the industry is to grow and
prosper, since otherwise the offering of spoiled nuts for sale to the
consumer will soon destroy the demand for the nuts.
There is no question but that the Chinese chestnut tree is very well
adapted to the Southeast. It has proven to be healthy, vigorous, and
productive. Yield records at Philema show actual yields of more than
1,000 pounds per acre and potential average annual yields of 1,500 or
more pounds per acre are not out of reason. In 1947, in the Brown tract
at Philema, if all the trees that bore nuts had been collected into a
solid block the yield per acre would have been nearly 2,500 pounds.
Crowding of the trees in the Brown tract is becoming serious at 11 years
of age with a 25 x 25 foot spacing. Alternate-year bearing is becoming
apparent and the stand of trees must be thinned immediately. Because of
such potential yields and because rather extended storage of nuts of
varied keeping quality is now economically possible the future of the
chestnut industry in the Southeast is very promising.
The selection and propagation of selected seedlings is desirable as a
means of advancing the industry at a more rapid rate. The propagation of
selected seedlings offers a problem because of lack of compatibility
between some stocks and scions. Since the chestnut is almost completely
cross-pollinated it may be necessary to develop special plantings of two
or three selections as a source of seed nuts for the production of
stocks. Such plantings might possibly produce seedlings of quite uniform
and desirable characteristics, but this prospect, is not very promising.
Certainly, the evidence points to the conclusion that scion selections
must be worked on stocks of the same strains if incompatibility is to be
held at a minimum.
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