Reakcje biologiczne dębów na podkrzesywanie

The paper provides a comparison of biological consequences of pruning oak trees leaving stubs with the oaks in which branches were removed along tree−trunk surface. The wood around all examined knots was healthy. Zones of rotten wood were detected in the great majority of knots, especially in the pruned trees with retained stubs. Moreover, the occlusion time of knots without stubs was markedly shorter. The results of the research point to the purposefulness of pruning oaks without leaving stubs.