Tbc crops of structure depleted by partial felling creates specific conditions for growth and development of trees. The characteristic rhythm of growth of these crops, as well as morphological features of trees, especially оf their long and well developed crowns, have undoubtedly influence on wood structure and its properties. The scope of these studies was, therefore, to determine physical and mechanical wood properties of firs, grown in the crops of multifloar structure. The studies were carried out on 3 areas, established in lower mountain forest zone of Beskid Sądecki (Tab. 1), On each area 15 tentative trees were analysed. The material for studies was represented by boles taken at the level of 1.5 m of tree height. The analysed wood characteristics, of the trees from all 3 areas, do not showed essential differences. The following mean values characterize the wood: the annual ring widths 2.2 mm, the late wood part 30,8%, density 0.407 g/cm3, volumetric proportion 12.7%, compression 44,7 MPa, tension 73.3 MPa, statical bending 70,0 MPa, hardness 40.7 MPa (Tabs. 3, 4). The studies showed that the wood originating from the multifoar crops, in comparision to the wood originating from onefloar crops, is characterized by of about 13% larger annual ring width, whether density and the mechanical properties are lower of more than 10%.
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