THE GENETIC-STRUCTURE OF SCOTS PINE (PINUS-SYLVESTRIS L) POPULATION FROM THE TOP OF SZCZELINIEC-WIELKI MT, CENTRAL SUDETES

The comparison of the genetic stucture of the population of Scots pine from Szczeliniec Wielki Mt. with the population of its progeny and th ree other populations from the same geographic region shows great simi larity of both populations as far as the frequencies of genes and geno types are concerned. Also other genetic parameters, such as heterozygo sity, genotypic poly morphism indices and a number of alleles per locu s were in both populations very similar. It seems that our data proved that the provenance trial experiments reflect rather closely the gene tic structure of maternal populations. The fact that the population fr om Szczeliniec Wielki and its ''replica'' are genetically most similar to the geographically closest population from Bystrzyca Klodzka leads to the conclusion, that these populations are of common origin. Thoug h the relic character of the populations from Szczeliniec can not be e xcluded. The morphological distinctness of the population from Szczeli niec is caused by a modifying influence of environmental conditions.