Comparative estimation of biochemical composition of fruits of new introduced cultivars higbush blueberry (Vaccinium corymbosum L.) in the conditions of Belarus

Abstract

Article presents the two-year comparative study results for the indicator of the sugar-acid index, the content of free organic, ascorbic and hydroxycinnamic acids, dry, tanning and pectin substances, soluble sugars and basic groups of bioflavonoids in fruits of 9 new V. corymbosum – Bluecrop (st) varieties introduced in Belarus, Bluejay, Nui, Puru, Spartan, Sunrise, Toro, Brigitta Blue and Elliott. It was shown that the highest content variety of dry substances in them was Puru, free organic acids – Elliott variety; Ascorbic acid – Nui, hydroxycinnamic acids – Elliott; Pectin substances – Sunrise and Elliott; Tannins and major groups of bioflavonoids, in addition to catechins, – Elliott, catechins – Bluecrop. Soluble sugars – varieties Sunrise and Brigitta Blue, the first of which, like the variety Puru, was characterized by the highest value of the sugar-acid index.

The highest integral level of nutritional and vitamin values of fruits, in the aggregate of analyzed traits, surpassing that of the other varieties in 1.3–16 times, is established in the Elliott variety, while the smallest one is found in Spartan and Toro varieties.