Multidisciplinary studies (genetic and phytocoenological) of 4 populations of Austrian pine (Pinus nigra Arnold) were carried out in western and central Serbia. The obtained results gave the same inter-population arrangement in both methods. Dendograms (NTSYS) differentiate at the greatest genetic distance the population of Austrian pine in Šargan compared to other populations: Crni Vrh, Goč and Studenica. Using phytocoenological analysis it was determined that population of Austrian pine in

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... gan forms a community Erico-Pinetum gocensis, while the other populations form a community Seslerio rigidae-Pinetum gocensis. Multidisciplinary approach that was demonstrated within this paper presents the first studies of Austrian pine that directly link genotype dependence and environmental conditions manifested through the phytocoenological affiliation.