everal days before grafting, in order to get it adjusted from
winter to summer conditions.

DR. MacDANIELS: I think Dr. Crane is going to talk about the bunch
disease tomorrow morning and will give us some indication about the work
that has been done with that.

This matter of dormancy of scions we could probably get into an argument
about, but that isn't the subject right now.

MR. CORSAN: I find that you mustn't go cutting back much. They don't
like to be pruned. They are an open tree that grows a branch here, a
branch there. They don't get anything like the dense branches of, say,
the Turkish tree hazel. They are the very opposite, and they don't want
to be pruned, and if you go pruning them, they are likely to have the
witches'-broom.

MR. McDANIEL: There is another paper by Mr. Ward of Lafayette, Indiana,
"The Carpathian Walnut in Indiana." The first part of it, the
introduction, covers pretty much the same thing we have heard before
from some of the other speakers about the Carpathian strains in this
country.

The Carpathian Walnut in Indiana

W. B. WARD

Extension Horticulturist, Purdue University

West Lafayette, Indiana

The Carpathian or hardy Persian walnuts (_Juglans regia_), as grown in
Indiana, are nearly all seedling trees resulting from the desire of some
hobbyists to try something new. Other than a few exceptions, most of the
seedling trees were planted during the period of 1934 to 1938. Credit is
due to the Wisconsin Horticultural Society in offering the seedling nuts
for sale and from these plantings numerous trees grew and fruited. A few
test winters, with the temperature as low as minus 20 degrees F., left
only those trees hardy in wood and bud. The seedling trees under
observation have been fruiting for the past six to eight years, with
some trees producing as much as five to six bushels of nuts per year.

The tree grows best in well drained, fertile soil and a bluegrass sod.
Small amounts of nitrate fertilizer, about the same quantity used on
fruit trees, have stimulated growth and no doubt have helped in the
sizing up of the nuts. The tree does not do well under cultivation or
mulching, as winter injury to the tree has been recorded when compared
to bluegrass sod. There is also a possibility that the tree will respond
to applications of liquid or soluble nitrates when mixed in spray
materials. Six walnut trees were sprayed with "Nu Green" on May 9th and
May 28th, 1950, using