ISHS Acta Horticulturae 538: Eucarpia symposium on Fruit Breeding and Genetics
APPLE BREEDING AT AOMORI APPLE EXPERIMENT STATION, JAPAN |
| Authors: | T. Kon, S. Sato, T. Kudo, K. Fujita, T. Fukasawa-Akawa |
| Keywords: | fruit self-thinning, multiple resistance, hardwood cuttings, apomixis |
| 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. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
