Volume 41 Number 1 Article 4 Pages: 13-16
Year 1987 Month 1
Title: Variation in Leaf Calcium in a Range of Apple Rootstocks
Authors: A.J. Kennedy, R. Watkins and J.M. Werts
Citation
Abstract:
Forty-nine apple rootstocks were analysed
for leaf calcium over 6 years.
They showed
marked differences in consistency of calcium
levels over years.
The results are discussed in
relation to breeding and selection of improved
genotypes.
It has long been established that calcium
nutrition and storage disorders of apples are
related (1). More recently the subject of calcium nutrition in fruit trees has been reviewed
by Vang-Petersen (10) who suggests that the
concentration of calcium in the soil seldom
limits uptake by roots.
The view is largely
supported Shear (5). Kennedy, et al. (4) have
shown that the ability of apple rootstocks to
utilise the available calcium is strongly influenced by genotype and environmental conditions.
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