Northern Nut Growers Association Report of the Proceedings at the Twenty-Fifth Annual Meeting: Battle Creek, Michigan, September 10 and 11, 1934
Science
Northern Nut Growers Association Report of the Proceedings at the Twenty-Fifth Annual Meeting: Battle Creek, Michigan, September 10 and 11, 1934
Northern Nut Growers Association -- Periodicals; Nut trees -- Periodicals; Nuts -- Periodicals
The shortage of moisture in 1933 apparently was responsible for
considerable winter killing of young hickories which were in sod. There
was no loss in cultivated ground. The hickories were like the apples
this year in that they did not bloom much, and unlike them in that the
apples ripened ahead of their normal season, while the hickories ripened
later. Stratford nuts are usually ready to gather September 1 but this
year are still clinging to the trees. Fairbanks is our most prolific
kind. Nuts closely resembling Fairbanks, yet somewhat different from it,
keep bobbing up on different sides of us when there is a good crop of
hickory nuts. None of them have yet been superior to Fairbanks. Perhaps
one should give each a good testing and keep up a search for one with
better quality than Fairbanks. Certainly there is no reason for calling
Stratford a hybrid. It is one of a group of shagbarks with smaller
leaves and buds, and thinner husks than are found in what we would call
a typical shagbark. The shagbarks might be divided into several species
and be as distinct as some of the species of other trees, such as the
ash for example. Vest and Hand represent another group with thin, wavy
shells and thereby are quite distinct from the typical shagbarks.
On account of extremely hot weather coming so early the nut trees were
grafted earlier than usual and in this order: chestnuts, bitternuts,
hickory stocks, shagbark stocks and, after a few days, the walnuts and
pecans. The grafting was successful in the order worked. Immediately
after the walnuts and pecans were worked the temperature began mounting,
reaching 114 deg. F. in the shade at one time, and of course much more in
the sun and just above the bare dry ground. The chestnuts and bitternuts
had time to knit together before the extreme heat and gave a splendid
stand. The shagbarks also made a good stand. But the walnuts and pecan
stocks were near a total failure. Apparently what occurred was that the
grafting wax and paraffin which was coated over the scion melted and
penetrated the union, like that much kerosene or penetrating oil, and
prevented callusing. The cions remained plump and green for a long time
except for a thin layer at the cut surfaces. The usual resin, beeswax,
linseed oil and lamp black grafting wax was used. Can anyone suggest a
wax which will remain absolutely dry under the conditions described
above? What happened, as near as I can tell, is that the extremely hot
weather and the continuation of it melted the grafting wax and the
paraffin. They fused and made a new combination which looked like grease
and absolutely prevented any growth. The shagbark hickories gave a good
stand, about as perfect a stand as you could expect in hickories. Last
of all the pecan stocks were worked. They should have been the easiest
to work but they were a total failure. That is because the hot weather
set in less than a week after they were set, while the others had more
time.
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