Volume 49 Number 2 Article 24
Year 1995 Month 4
Title: Leaf Elemental Concentrations as Influenced by Growth Habit and Strains of ´Delicious` Apples
Authors: E. Fallahi, B.R. Simons and D.O. Wilson Jr.
Abstract:
Leaf elemental concentrations and leaf fresh
and dry weights and their relationship with
yield efficiency in twenty-eight strains of 'Delicious' apple (Malus domestica Borkh.) with two
types of growth habit (spur and standard) were
evaluated over two years.
Cluster analysis of
leaf elemental concentrations divided strains
into groups approximately corresponding to
growth habit. 'Starkspur Ultrared' and 'Wellspm',
which are classified as spur types, tended to
group with the standard type strains on the
basis of elemental concentration.
Strains with a
spur type growth habit had more fluctuation in
yield from year to year and had higher leaf
fresh and dry weights, leaf Ca, Mg, Zn, Mn, and
Cu, but lower leaf K than standard type strains.
'Early Red One,' 'Starkspur Supreme', 'Starkspur
Ultrared,' and 'Redchief' had higher concentrations of leaf N, while 'Aomori,' 'Apex,' 'Classic
Red,' Improved Ryan Sput' and 'Red King
Oregon Spur' had lower leaf N than many other
strains. 'Aomori' had a higher leaf K ana lower
leaf Ca, but 'Hardi-Brite Spur' had lower K and
higher leaf Ca than other strains. 'Imperial' and
'Improved Ryanred' were among strains with
high leaf Fe and 'Improved Ryan Spur' and
'Ace' had low Fe. 'Silyerspur' had the highest
leaf Zn and Mn, making it desirable for areas
with deficiencies of these elements. 'Spured
Royal' had a higher concentration of leaf Cu
than most other strains.
Full text download: APS subscribers
ISHS members & pay-per-view
(PDF 1343816 bytes)
Translate:
APS membership administration
ISHS membership administration
