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
Since it requires about ten years here for a native bitternut to acquire
the proper size of one-half inch to three-quarter inch diameter, which
is about the size necessary for grafting, you have some idea of how
slowly this native species grows. The forest trees, of which there seem
to be thousands on my property, very seldom exceed a diameter of six
inches, yet they appear to be very old trees. Occasionally we find one
that reaches the diameter of a foot or more, and generally it is one
that is located where it has plenty of space to grow, as in open
pasture. The tree is rather easy to graft to many varieties of
hickories. No doubt if it were grown in large numbers, in the proper
soil, the time for producing seedling stock ready for nursery
propagation could be cut down. But it appears more likely that some
northern pecan seed can be found which will produce a hardy understock
to furnish a seedling of sufficient vigor and size for propagating
purposes in five years or less.
+Records of Bearing+
Our first successful grafting of Weschcke hickory on bitternut hickory
(_Carya cordiformis_) was in 1927, but these grafts did not bear for
about ten years. We know now that this was because there was a lack of
pollen of the shagbark species to pollinate its blossoms. Now these
trees are bearing profusely.
The second batch of grafts from the original Weschcke hickory, which
grew near Fayette, Iowa, was made in 1934. One mature nut from grafts
made that spring was gathered from the ground in the same year, about
October 1, 1934, but it had been partly consumed by a squirrel. From
that year to the present, these grafted trees produced each year and
never failed to mature some edible nuts up to and including this year,
when there is a very large crop (6-1/2 bushels). This, then, is the 15th
consecutive crop of nuts of which I have a record. During two years we
had such early fall frosts that the nuts were a little shriveled and not
fully mature, but still edible. In other years there were some light
crops, but there never has been a crop failure in all this time. The
variation in bearing is also due in part to several late frosts which in
the spring in some years killed back all the foliage and newly expanding
buds. Yet new dormant buds opened, some of which had flowers, and so
carried on the unbroken bearing record.
Public-domain text, read in full here on John Shaqi.
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