New Zealand Journal of Crop and Horticultural Science abstracts
Four Australian apple cultivars with polygenic resistance
to black spot, Venturia inaequalis
S. J. TANCRED
J. B. HEATON
A. G. ZEPPA
S. R. DULLAHIDE
Granite Belt Horticultural Research Station
Department of Primary Industries
P.O. Box 501, Stanthorpe
Queensland 4380, Australia
Abstract Four Australian apple (
Malus domestica
Borkh.) cultivars that have orchard resistance to black spot,
Venturia
inaequalis, were investigated for their usefulness as sources of resistance
in apple breeding. Test crosses showed that the cultivars `Geeveston Fanny',
`Tasman's Pride', `Democrat', and `Redbow' all carried quantitative resistance
genes. Unfortunately, because the resistance was inherited by only a small
proportion of their progeny these cultivars are not useful sources of black
spot resistance in apple breeding. These cultivars have been superseded by
modern, higher quality cultivars.
Keywords apple breeding; Malus domestica; black spot;
apple scab; Venturia inaequalis; disease resistance
New Zealand Journal of Crop and Horticultural Science, 1995, Vol. 23:
267-271
0114-0671/95/2303-0267 $2.50/0 (c) The Royal Society of New Zealand
1995
PDF file of entire paper: medium quality (379K); (scanned from paper original: notes about this process)
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