Abstract: Ten enzyme systems were tested for the endosperm of korean pine from three populations using the horizontal starch gel electrophoresis technique. 18 loci were obtained. The results indicated the ratio of polymorphic loci was 77.78%, the average number of alleles was 2.0(A) and the expected heterozygous was 0.1648(He). The genetic differentiation (Gst=5.38%) among populations was lower than other species in Pinus genus and most variations were within population. According to Nei's index, the genetic distance (0.0095) between Xiaobeihu and Changbai Mountain was nearest, not correlation to the geographical distance. It shows the original complexity of population.

Key words: Pinus koraiensis Allozyme, Genetic Diversity