. The effect of biopreparation for plant protection and growth regulation on bioflavonoid complex of Vaccinium сorymbosum L. (highbush blueberry) in the conditions of Belarus

The results of a comparative study of the composition of the P-vitamin complex of tall blueberry fruits are presented depending on the treatments of the experimental crop with biological growth regulators Oxidate torpha with trace elements and Rostmoment (each in a concentration of 0.4 %), as well as various concentrations (1, 2 and 5 %) of a new bacterial preparation of fungicidal action Ecoberit. Oxidate torpha had the most pronounced stimulating effect on the biosynthesis of anthocyanins, catechins and the total yield of bioflavonoids. Ecoberit at a concentration of 5 % mainly stimulated the formation of catechins, at a concentration of 2 % – flavonols, and at a concentration of 1 % it inhibited the synthesis of leukoanthocyanins, anthocyanins proper, but at the same time had a stimulating effect on the formation of catechins and flavonols. The use of Rostmoment reduced the synthesis of leukoanthocyanins, anthocyanin pigments and catechins, which generally led to fruit depletion with bioflavonoids. The maximum efficiency of enriching blueberry berry products with P-vitamins is achieved by treating plants with Oxidate torpha in concentration 0,4 % and Ecoberit in concentrations of 2 and 5 %.

1. Karabanov I. A. Flavonoids in the Plant World. Minsk, 1981. 80 p. (in Russian).

2. Rupasova Zh. A., Yakovlev A. P., Reshetnikov V. N., Lishtvan I. I., Vasilevskaya T. I., Krinitskaya N. B. Growing Blueberries in the Peat Bogs of Pripyat Polesie (Physiological and Biochemical Aspects of Development). Minsk, 2016. 242 p. (in Russian).

3. Pleskacevich R. I., Berlinchik E. E. The most common diseases in highbush blueberry fruiting plantations. Golubikovodstvo v Belarusi: itogi i perspektivy: materialy respublikanskoi nauchno-prakticheskoi konferentsii, Minsk, 17 avgusta 2012 g. [Blueberry Growing in Belarus: Results and Prospects: Materials of the Republican Scientific and Practical Conference, Minsk, August 17, 2012]. Minsk, 2012, pp. 49–53 (in Russian).

4. Rupasova Zh. A., Yakovlev A. P., Reshetnikov V. N., Kolomiets E. I., Aleschenkova Z. M. Efficiency of Microbial Fertilizers in Blueberry Cultivation on Depleted Peatlands in Belarus. Minsk, 2020. 236 p. (in Russian).

5. Rupasova Zh. A., Krinitskaya N. B., Zadalia V. S., Pavlovsky N. B., Raltsevich A. V., Goncharova L. V., Shpitalnaya T. V., Bely P. N., Kolomiets E. I., Aleshchenkova Z. M., Mandrik-Litvinkovich M. N., Skorina V. V. Influence of preparations with fungicidal activity on the accumulation of organic acids and carbohydrates in blueberry fruit (Vaccinium сorymbosum L.) under the conditions of Belarus. Ekologicheskie sistemy i pribory = Ecological Systems and Devices, 2023, no. 8, pp. 25–32 (in Russian).

6. Swain T., Hillis W. E. The phenolic constituents of Prunus domenstica. 1. The quantitative analysis of phenolic constituents. Journal of the Science of Food and Agriculture, 1959, vol. 10, no. 1, pp. 63–68. https://doi.org/10.1002/jsfa.2740100110

7. Skorikova Yu. G., Shaftan E. A. Methodology for determination of anthocyanins in fruits and berries. Trudy 3 Vsesoyuznogo seminara po biologicheski aktivnym (lechebnym) veshchestvam plodov i yagod [Proceedings of the 3rd All-Union Seminar on Biologically Active (Healing) Substances of Fruits and Berries]. Sverdlovsk, 1968, pp. 451–461 (in Russian).

8. Andreyeva V. Yu., Kalinkina G. I., Kolomiets N. E., Isaikina N. V. Procedure for determination of antocyans in the black chokeberries (Aronia melanocarpa). Farmatsiya = Pharmacy, 2013, no. 3, pp. 19–21 (in Russian).

9. Ermakov A. I., ed. Methods of Biochemical Study of Plants. Leningrad, 1987. 430 p. (in Russian).