GENOTYPICAL FEATURES OF THE BIOCHEMICAL COMPOSITION ANDANTIOXIDANT COMPLEX OF THE FRUITS OF BLUE HONESCULE VARIETIESUNDER THE CONDITIONS OF BELARUS

Abstract

The results of a comparative study in the southern agroclimatic zone of Belarus of 14 biochemical characteristics (organic acids, carbohydrates and phenolic compounds) and antioxidant properties of fruits of 5 new introduced varieties of blue honeysuckle - Aurora, Honeybee, Indigo Gem, Wojtek and Zojka and the released variety Leningradsky Velikan,
selected in as a standard of comparison. A significant dependence of their biochemical composition, as well as antioxidant
and enzymatic activity on the plant genotype was revealed. It was established that in the taxonomic series, the leading
position in the integral level of nutritional and vitamin value of berry products according to the totality of analyzed
characteristics belonged to the varieties Honey bee and Wojtek, which were characterized by 1.6 and 1.3 times higher fruit
quality, respectively, compared to the zoned variety Leningradsky Velikan with the relative comparability of this trait in the
Indigo gem variety and the Zojka and Aurora varieties that close this series lagging behind the leading taxa by 1.9-2.2 and
4.3-5.3 times, respectively. It was revealed that all introduced varieties of honeysuckle lag behind the zoned variety in
terms of the general level of AOA of fruits against the background of higher enzymatic activity with the maximum value
of CAT activity in the varieties Zojka and Indigo gem, PO in the varieties Wojtek and Indigo gem, PFO in the varieties Aurora and Honey bee and the lowest indicators of CAT and PO activity were found in the zoned variety Leningradsky Velikan, and PPO in the variety Indigo gem. The similarity of blue honeysuckle varietal series in terms of changes in antioxidant properties and the integral level of nutritional and vitamin value of fruits based on a set of biochemical
characteristics has been established