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Suitability of nine scab-resistant or partially scab-resistant apple cultivars: Bohemia, Rubinola, Topaz, Goldstar, Pinova, Redkroft, Free Redstar, Melfree and Gold Milenium for organic orchards was evaluated during the period 2002-2010. The trial consisted of two experimental plots. In the first plot, no plant protection chemicals were applied either to the trees or to the soil. In the second plot,...
A study was carried out of shoot growth and branching, fruit bud setting and fruiting in four sour cherry cultivars: 'Debreceni Botermo', 'Nefris', 'Schatten- morelle' and 'Serocka'. Trees were planted at a high density (4 x 1.5 m), trained with a leader and pruned with the renewal method. A relationship was shown to exist between shoot length and fruit bud setting density. Trees of 'Debreceni Botermo'...
Sour cherry trees cultivars Debreceni Botermo, Nefris, English Morello and local Sokówka Serocka were densely planted at4x1.4x1.5 and 4 x 2 m, and the leader trained for mechanical harvesting with a self-propelled straddle harvester working in continuous motion. From the 3rd year onward the trees were renewal-pruned. Branches older than 3 years were cut back and replaced by young wood. All the cultivars...
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