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Since its initial discovery in 1945, pitch canker caused by Gibberella circinata (anamorph Fusarium circinatum) has become one of the most important pine diseases in the world. It infests 57 pine species (including Pinus sylvestris) and Douglas−fir. F. circinatum has been reported in both nurseries and forests on all continents except Australia and Oceania. Both vegetative and reproductive parts of...
The aim of the study was to determine the relationship between the quality of habitat and the quality of Scots pine wood. We focused on the wood from mature stands growing on poor habitats on inland dunes in the Notecka Forest and on former farmlands (central and western Poland). We selected 12 trees, from which we took wood samples for tree ring investigation. We determined the age of trees, width...
Scots pine in the Polish part of the Carpathians shows a diversified annual rhythm of changes in size of the radial increments. It mainly results from a different susceptibility of trees to pluvial conditions of summer (June-August) and the air temperature during the autumn (October) preceding the year in which the annual tree ring is formed. The air temperature in the winter months (February-March)...
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