In testing almonds, I have found that trees whose
bark turns red early in the fall are definitely more hardy than those
whose bark remains green or tan. In observing apricots, I have learned
that young twigs with red bark are more resistant to cold than those
with brown. Of course, these findings cannot be considered as facts
until further studies have been made. I hope that others will find the
idea of investigating this more-than-possibility as interesting as I do.
As the years increased, however, the growth of the seedling walnuts
decreased and some having made a nice tree-like form, with a trunk of
approximately an inch in diameter, within a succession of years were
reduced in size through the combination of winter injury and attacks by
the butternut curculio as well as a bacterial blight until by 1952 only
a fraction of the 12,000 seedlings remained, certainly less than 1,000.
All of the originally grafted specimens are dead with the exception of
one variety which has been kept alive by constantly re-grafting it on
black walnut. We have not named this variety as yet, although it has
borne both staminate and pistillate bloom, it has never borne any ripe
nuts.
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