Vegetative and Yield Behavior of ‘Golab-kohans’, ‘Fuji’, ‘Gala’, ‘Starking’and ‘Delbar estival’ Apple Trees Trained to V-Shape System

This paper presents the results of trials carried out in an apple orchard situated in the horticultural research center of tehran university of Iran. Within trials, we compared many vegetative and yield characteristics of five apple cultivars. Trialswere conducted on the cultivars ‘Golab-kohans’, ‘Fuji’, ‘Gala’, ‘Starking’ and ‘Delbar estival’ grafted on M.9 trained in a V system. All the trees were planted in winter 2005. Since the second year after planting, trees were drip irrigated.Early results obtained show that ‘Golab-kohans’ has the greatest tree height (278/63cm), shoot growth (100/588 cm) and TCA (7/308 cm2). Addition, ‘Golab-Kohans had the lowest yield efficiency (0/035 kg/cm2) and yield per tree (0/287) But ‘Delbar estival’ had the greatest yield per tree (0/98 kg) and yield efficiency (0/550 Kg/cm2).