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Platon I.,Bistrita Fruit Research and Development Station | Jakab Z.S.,Bistrita Fruit Research and Development Station
Acta Horticulturae

During the spring of 2000, the apple cultivars 'Florina' and 'Auriu de Bistriţa' grafted on M9 rootstock, were planted at three the densities per each variety (1666 - control, 2,500 and 5,000 trees/ha). The orchard was located on a podzolic soil with a clay-loamy texture and a low pH. All trees were trained as V system and were drip irrigated. During the 8 years of study, measurements regarding the fruit yield per tree, the cumulative yield per hectare and fruit quality indexes were carried out. The total production cost and the profit obtained per hectare at each cultivar/density combination have been calculated. Total cumulative yield in the experimental variants was influenced by the number of trees planted per hectare and by the cultivar. For 'Auriu de Bistriţa', yields were 53% higher with 2,500 trees/ha density and 112% at 5,000 trees/ha density when compared with the control of 1,666 trees/ha. In 'Florina', the total yield, when compared with the control, showed a 69.3% higher value at the density of 2,500 trees/ha and 135.5% at densities of 5,000 trees/ha. The total production costs per hectare were higher at the densities of 2,500 trees/ha and respectively 5,000 trees/ha, due to higher labor costs, being influenced by the pruning and harvesting labor costs. Although, the total costs realized at higher densities than 1666 trees/ha were increased, the profit was obtained through the higher yields per hectare. Source

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