Volume 48 Number 2 Article 14 Pages: 130-132
Year 1994 Month 4
Title: Early Production of Apple Cultivars on M.9 and Mark Rootstock
Authors: D.C. Ferree and J.C. Schmid
Citation
Abstract:
After six years there was little difference in
tree size or yield of three apple cultivars on
Mark or M.9 rootstocks.
Yields of all cultivars in
this trial were relatively low and growth was
vigorous resulting in large tree size.
TCA of
both the spur ('Redchief') and standard habit
(Top Red) 'Delicious' strains were larger on
Mark than on M.9. 'Melrose' tended to produce
larger trees and was more precocious than the
other cultivars in this study on M.9. 'Smoothee'/
M.9 had equivalent cumulative yield/ha than
other cultivars and had the highest production
efficiency of all combinations in this study.
It is
suggested that training techniques to reduce
growth and encourage flowering are needed
when trees on dwarfing rootstocks are grown
on high fertility soils in order to achieve pro
duction efficiency.
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