Vliv vyvětvování na tloušťkový a výškový přírůst třešně ptačí (Prunus avium L.) v podmínkách ŠLP 'Masarykův les' Křtiny

Wild cherry produces very valuable wood that can increase economic benefits in forest management. In order to achieve quality cherries, it is necessary to carry out the pruning, which gradually achieves straight, long and knotless trunks. The aim of the work was to evaluate the reaction of cherries to different ways of pruning. The research took place in four young stands located at the TFE Křtiny. The results confirm that the pruning has a negative effect on the diameter increment. The more powerful the crown reduction, the more increment decreases. The effect of pruning on the height increment did not prove certainly. A practical recommendation is to realise a milder or selective pruning method that does not reduce significantly the diameter increment. Wild cherries should be pruned in time, repeatedly after two to three years, when the branches are not too thick, and a rapid healing of the cutting wounds can be expected. In addition, it is necessary to grow cherry trees with nurse species, which protect their trunks from the sunlight causing secondary shoots.