Articles
APPLE BREEDING AT AOMORI APPLE EXPERIMENT STATION, JAPAN
Article number
538_36
Pages
215 – 218
Language
Abstract
Aomori Apple Experiment Station started a breeding program for apples in 1929. Eight apple cultivars have been plant-patented.
Our recent major aim is to breed high fruit quality cultivars combined with a low cost of production.
We have now six breeding goals: (1)self-compatible cultivars; (2) fruit self-thinning cultivars; (3) breeding new cultivars and rootstocks with resistance to Alternaria leaf spot, scab, valsa canker, and violet root rot; (4) columnar cultivars; (5) dwarfing rootstocks with good propagability by hardwood cuttings; (6) dwarfing rootstocks having apomictic character.
We released ‘Megumi’ as a self-compatible cultivar, in 1950. We have selected ‘Aori 9’ (Aomori Apple No. 9) as a fruit self-thinning cultivar and ‘Aodai 3’ (Aomori Rootstock No.3) as a dwarfing rootstock with good propagability by hardwood cuttings.
We applied them to the Ministry of Agriculture, Forestry and Fisheries of Japan for plant-patents in December 1997. To achieve these breeding goals early, we have already started to utilize DNA markers for selecting progenies and for constructing a database of parental cultivars.
We are also constructing a linkage map of the important parents used in Japan.
Our recent major aim is to breed high fruit quality cultivars combined with a low cost of production.
We have now six breeding goals: (1)self-compatible cultivars; (2) fruit self-thinning cultivars; (3) breeding new cultivars and rootstocks with resistance to Alternaria leaf spot, scab, valsa canker, and violet root rot; (4) columnar cultivars; (5) dwarfing rootstocks with good propagability by hardwood cuttings; (6) dwarfing rootstocks having apomictic character.
We released ‘Megumi’ as a self-compatible cultivar, in 1950. We have selected ‘Aori 9’ (Aomori Apple No. 9) as a fruit self-thinning cultivar and ‘Aodai 3’ (Aomori Rootstock No.3) as a dwarfing rootstock with good propagability by hardwood cuttings.
We applied them to the Ministry of Agriculture, Forestry and Fisheries of Japan for plant-patents in December 1997. To achieve these breeding goals early, we have already started to utilize DNA markers for selecting progenies and for constructing a database of parental cultivars.
We are also constructing a linkage map of the important parents used in Japan.
Authors
T. Kon, S. Sato, T. Kudo, K. Fujita, T. Fukasawa-Akawa
Keywords
fruit self-thinning, multiple resistance, hardwood cuttings, apomixis
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