INVESTIGATION ON THE STEM QUALITY OF PINUS BRUTIA INDIVIDUALS GROWN FROM HEALTY TREES WITH POOR STEM QUALITY

Natural mature brutian pine (Pinus brutia Ten.) stands are generallycomposed of individual trees with poor stem quality owing to fact that they havenot been managed by a proper thinning programme. An expectation gains weightas to whether the undesirable trails will carry in the new generation to beestablished by using the seed obtained from those of trees with poor stem form.The present investigation was commenced in 1986 in order to study thisproblem. 1+0 seedlings grown by generative and vegetative methods from theSuleyman Demirel Universitesi Orman Fakultesi DergisiSeri: A, Sayi: 2, Yil: 2001, ISSN: 1302-7085, Sayfa:11-2612healty trees with good crown structure but poor stem form were planted inautumn,1987 to carry out the experiments.Assesments were made in 1994 after the individuals are attained a certainheight and form at 7 year of age. But, time was too early for reliable result onthis subject. Final report was not published that time, therefore. In the spring of2001 observations clearly showed that the sceptical topic mentioned above isnot justified and a new generation composed of high quality young individualsmay be regenerated by the readily available seed supply from the old generationwith poor stem form.Keywords : Pinus brutia stands, regeneration, individuals with poor stemform.