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Effect of interstock bridge grafting (M9 dwarfing rootstock and same cultivar cutting) on vegetative growth reproductive growth and carbohydrate composition of mature trees

Citation

Samad, A and McNeil, DL and Khan, ZU, Effect of interstock bridge grafting (M9 dwarfing rootstock and same cultivar cutting) on vegetative growth reproductive growth and carbohydrate composition of mature trees, Scientia Horticulturae, 79, (1-2) pp. 23-38. ISSN 0304-4238 (1999) [Refereed Article]

DOI: doi:10.1016/S0304-4238(98)00179-4

Abstract

Four apple cultivars, Granny Smith, Cox's Orange, Gala and Oregon Red Delicious on rootstock MM106, M793 or Northern Spy were interstock bridge grafted with M9 dwarfing rootstock or same cultivar cuttings to investigate the effect on vegetative, reproductive and biochemical changes and fruit quality at harvest in different apple cultivars. Controls were also left with no interstock treatment. In general bridge grafting reduced shoot growth (up to 20%), increased floriferousness, changed carbohydrate (CHO) level and increased yield (up to 30%) with the greatest effects in the second season. The treatment did not significantly change mean fruit weight, fruit length to diameter (L/D) ratio or flesh colour in first season, while in the second season there were significant differences in these apple quality measures. Seed number and brix value at harvest from both treatments were significantly increased in both seasons. Flesh firmness also showed significant increases in both seasons. The M9 bridge and same cultivar interstocks were generally similar in effect though occasionally the M9 had a greater effect. Interstock bridge grafting of mature apple trees may be a viable method of reducing growth and improving yield.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Grain Legumes
UTAS Author:McNeil, DL (Professor David McNeil)
ID Code:52475
Year Published:1999
Web of Science® Times Cited:17
Deposited By:Agricultural Science
Deposited On:2008-08-01
Last Modified:2011-11-28
Downloads:0

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