Изменчивость древесины 50-летней обыкновенной сосны (Pínus sylvestris L.) польских генетических популяций

Abstract

The paper presents the preliminary results of the study on the properties of 50-year-old pine trees of selected genetic origins obtained on the provenance surface located in Rogów (Poland). Studies refer to the physical and technical properties of wood, incremental, immune and other botanical and anatomical properties of wood, needles, seeds. So far examined 3 populations differ in eccentricity of the core and the proportion of hardwood and sapwood in the tree stem. The largest increase in thickness is deposited in the eastern direction, while the highest proportion of hardwoods in tree trunks is found at about 4-6 m height