INFLUENCE OF WEATHER CONDITIONS ON THE VARIABILITY OF CHARACTERISTICS OF THE BIOCHEMICAL COMPOSITION OF FRUITS OF INTRODUCED VARIETIES OXYCOCCUS MACROCARPUS (AIT.) PERS. IN THE CONDITIONS OF BELARUS

The article presents the results of a comparative study of the variability of the biochemical composition of the fruits of six cultivars introduced in Belarus: Oxycoccus macrocarpus (Ait.) Pers. – Stevens, Bain Favorit, Hiliston, Holistar Red, Stankovic and WSU 108 during contrast moistening seasons. It has been established that the least pronounced intersectional differences are characterized by the parameters of accumulation in the fruits of dry substances, ascorbic and hydroxycinnamic acids, as well as the total amount of antoniated pigments and bioflavonoids in general, while of most significance are the sugar-dependent concentration and the content of soluble sugars, pectins, leucoanthocyanins and flavonols. It is shown that in the taxonomic series of large-fruited cranberries the Stankovich cultivar was characterized by the greatest resistance of the biochemical composition of the fruits to weather factors, while the lowest cultivar was Bain Favorit and especially Hiliston. 

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