Comparative analysis of genetic variability of three relic populations and six forest stands of different age grown in Kremenets Hills and Maloye Polesye has been carried out at 19 allozyme loci. All populations and four forest stands were characterized by a low level of heterozygosity (Ho = 0.245-0.300). In two other stands it was significantly higher (H0 = 0.245-0.300). Allelic and genotypic variability of the natural populations are reproduced in the studied stands. However, genetic distance among man-made stands and populations (D(Ncp) = 0.014) is considerably higher than that among three populations (D(Ncp) = 0.003).