Keywords
Abstract
This article presents the research results aimed at studying the features of sprouting formation of sweet cherry trees, depending on the rootstock, variety and a method of crown training. Active sprouting processes negatively affect the productivity of these crops, and make it difficult to carry out agro-technological efforts, which reduce the efficiency of fruit production. We considered the features of sprouting formation of variety-rootstock combinations using seedling rootstock ‘Antipka’ (as a control), and vegetative and interesting for agro–climatic conditions of the Crimea – VSL-2 and ‘Kolt’. Promising varieties ‘Krupnoplodnaya’, ‘Lyubava’, ‘Annushka’ were used as graſts. It was noted that the clone rootstock VSL-2 leaded to the formation of the largest amount of root sprouting in all varieties. Differences in sprouting formation of sweet cherry varieties using different methods of crown training were revealed. In all variants of crown training of ‘Krupnoplodnaya’ variety, the amount of root sprouting differed insignificantly (5.9–6.5 pcs/tree). The formation of trunk sprouting varied from 0.1 (flattened spindle) to 1.4 (weeping crown) pcs/tree. In the sweet cherry variety ‘Lyubava’, low rates of sprouting formation were observed in the variants when using free-growing or flattened spindle crown shape (4.6–5.7 pcs/tree of root sprouting, 0.6–1.5 pcs/tree of trunk sprouting). Significantly higher indicators were noted when using a weeping crown shape – 10.2 and 2.5 pcs/tree, respectively. High rates of root sprouting were determined for ‘Annushka’ trees with the use of both flattened spindle and weeping crown shapes – 16.1 and 17.9 pcs/tree, compared to the value of 8.4 pcs/tree in the control. It is recommended to use the obtained data when planning to establish industrial sweet cherry plantations using new high-intensity technologies in the conditions of the Crimea.