Istraživanje bibliografskih podataka za (PCA)
Exploration of Fraxinus ornus L: Bibliographic data using prinicipal component analysis (PCA)
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Bibliographic data of manna ash were analyzed in order to find out at the first sight the direction of the research on the species which would serve as the model for further investigations on different plant species. By finding out the direction of the previous researches, it becomes easier for us to select the direction of the future ones. By using references from the data base 'Scopus' obtained in the last ten years we noted the frequency of the key words for domains of research. PCA analysis showed that the previous researches conducted on Fraxinus ornus were mainly aimed at the studies of the ecological aspect, chemical composition and stress and to a lesser extent at genetic variability and hybridization. We suggest more genetic investigations of this species in the future.