The introduction of dwarf apple growing in real terms in Korea has started from 1970. Nowadays, the cultivation area of dwarf apple trees has greately expanded, reaching 30% of total apple growing area in 1982 present. Many of the pomologists have int...
The introduction of dwarf apple growing in real terms in Korea has started from 1970. Nowadays, the cultivation area of dwarf apple trees has greately expanded, reaching 30% of total apple growing area in 1982 present. Many of the pomologists have interest in the growth habit of the dwarf apple trees but sy stematic studies on growth and flowering of them were not studied in detail.
The present study was carried out to find out the effects of the most important dwarfing rootstocks; M.27, M.9, M.26, and MM.106 on their counter part scion cultivars; Fuji, Jonagold, Spur Earli Blaze, Starkrimson, Vista Bella, Oregon Spur, and Mutsu in their growth using 6-year-old apple trees.
The results obtained were as follows. The tree height of Fuji on M.26 and on MM.106 were 288.60㎝, 291.20cm, respectively. The tree width of Fuji on M.26 and MM.106 were 328.20㎝, 292. 40cm, respectively. The tree height of Jonagold on M.26 were 256.20cm. The width of Jonaold on M.26 were 239.20cm. Therefore, a regardless of rootstocks, the tree height and width of Fuji cultivar were greater than those of Jonagold cultivar. The tree height, width, trunk circumference and number of shoots of Fuji on M.26 were greater than these of other scion cultivars on M.26. The Spur EarliBlaze on M.26 is superior to other cultivars in the number of flowers.