Fruit Varieties and Horticultural Digest (J Fruit Var & Hort Digest)
Volume 21 Number 4 Article 12 Pages: 81-81
Year 1967 Month 10
Title: Notes from a Research Report of Summerland Research Station, 1961-64
Author: APS Citation
Abstract:
Apple rootstock studies at Summerland,
B.C. indicate that the best possibilities
for high density plantings in
commercial orchards are provided by
the semi-dwarfing rootstocks, EM VII,
EM 26, MM 106, and possibly EM IV.
However collar rot is a severe problem
with MM 106, and to some extent
with EM VII.
Compact apple mutants have been
obtained by exposing dormant scions
to X-rays, gamma rays, or thermal
neutrons.
Trees obtained from these
mutants have exhibited shorter internodes,
more fruit spurs, fewer vegetative
shoots, slightly smaller leaves,
but larger leaf area per unit of shoot
length than the parent varieties.
The
fruit of most, but not all, of the mutants
have been undesirable in shape
oblate, assymetrical, grooved, or
small.
Fruit variety evaluation studies
have shown the best varieties to be as
follows:
Apple: Highest colored Delicious
sports-Harrold Red, Starkrimson,
Hi-Early Red, Hapke and Imperial.
Best McIntosh sports-Summerland,
Rogers, Imperial, Reid,
Geneva.
Most promising varieties
maturing before McIntosh-
Quinte, Tydeman's Early.
Nectarine: Early varieties (Redhaven
peach season)-N.Y. 884,
N.J. N23; main season-N.Y. 1017
and Nectared.
Peach: For fresh market-Early
Redhaven.
For canning-Golden
Jubilee, Fairhaven; clingstone-
Fortuna.
Grape: New varieties for wine-
Bath, Seibel 9549 and 9110, Foch,
New York Muscat and Buffalo.
