9

Ohio Black Walnut, scions W. G.
Bixby's trees 17 64.7
McCoy Black Walnut, scions W. G.
Bixby's trees 9 77.0
Stabler Black Walnut, scions some
W. G. Bixby's trees, and some Dr.
Deming's trees 85 51.2
[4]Ten Eyck Black Walnut, scions
W. G. Bixby's trees 32 97.0
Thomas Black Walnut, scions W.
G. Bixby's trees 23 100.0
Wasson Black Walnut, scions W.
G. Bixby's trees 8 75.0
--- ----
174 69.5

Persian Walnuts 4 varieties, scions
about 2-3 from parent trees, all
of which were quite vigorous
growers 46 0.0
Aiken Butternut, scions W. G.
Bixby's trees 39 38.5
Lancaster Heartnut, scions W. G.
Bixby's trees 53 3.8

[Footnote 4: One scion was overlooked in tying and waxing, otherwise
apparently we would have had 100% catches.]

* * * * *

In the above two groups of hickories the one where scions were cut from
young, rapidly growing trees, contrasts unmistakably with those where
scions were cut from old bearing trees. The same is shown in the table
of black walnut grafts, where the Alley, Adams, and O'Connor scions were
cut from old bearing trees, and the others from young, rapidly growing
trees.

The poor success with the heartnuts is quite in line with previous
attempts at propagating this species by grafting. Results shown here
with the butternut are deemed reasonably satisfactory, in view of the
well known difficulty of grafting this species. It should be noted here
that, in the case of every graft that took and grew, it was the small
buds that were successful, not the large ones. The total lack of success
with the Persian walnut is inexplicable to the writer, but he knows of
no previous attempts to graft Persian walnut on Persian walnut root.

Black walnuts show a very high percentage of catches, in the case of the
Thomas and Ten Eyck varieties 100%, but in the case of the Stabler this
is reduced to 51.2%. I would say in this connection that neither of my
two Stabler trees are vigorous growers, and so the trees grafted with
scions from these are really cases where we have not been using scions
from vigorous growing trees, and we know that this does not give a high
percent