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
In the spring of 1940, I planted a Broadview Persian walnut graft on
black walnut stock, and this tree is bearing for the first time with
eighteen nuts showing. Three or four years ago this Broadview suffered
some winter damage by a split trunk and split lower branch. I painted
over the cracks with gasket cement, and they are now healed. The
Broadview has also shown some winter-kill of terminal twigs, but not
enough to affect its bearing this year. There has been no splitting of
the trunks or branches of the two surviving Crath Persian walnut trees
and no winter injury to terminal twigs. The Crath walnut trees are now
18" in circumference a foot from the ground and about 12 to 15' tall.
The Broadview on the black walnut stock has a circumference of 16" above
the graft and 15-1/4" below the graft, tending to show that the
Broadview grows faster than the black walnut.
It is interesting to note that the Broadview blooms a week or ten days
later than the Crath Persian walnut, and at the same time as the native
butternut.
Black Walnuts
I have planted a few Thomas black walnut seedlings, two grafts, and a
Tasterite black walnut graft. A Thomas black walnut graft has borne nuts
in three different years, including this year. The graft was sent out in
the spring of 1939, and the seedlings were set out in the spring of
1940. The seedlings have not yet borne. The Thomas black walnut graft
last bore three years ago, when the nuts on the whole ripened and were
well filled. We had a very cold spring in 1945, so much so that apples
were almost a total failure.
I also planted a Tasterite black walnut in the spring of 1939, and this
is the first year that it has borne any nuts. It remains to be seen
whether they will be filled out or not. There is, however, an important
difference between the Thomas and the Tasterite, which are growing only
50' apart, namely that the Thomas suffers from winter injury to the
terminal twigs each year, whereas there has not been any sign of such
injury to the Tasterite.
Hickories
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