Biochemical indicators comparative analysis of the apples variety Ekrannoe

The purpose of the study is to conduct a comparative analysis of the biochemical composition of apples of the Sverdlovsk selection of the variety Ekrannoe. Tasks: to study the biochemical parameters and the mineral composition of apples; to study the elemental profile of the soil. The results of a study of the elemental composition of the soil and the biochemical composition of apples of the Ekrannoe variety growing in two different plots (34th and 42nd quarters) of Grigoryevsky Gardens (Chelyabinsk Region, Kaslinsky District, Grigorievka village) are presented. The profiles of sugars, organic acids, content of dietary fiber, polyphenols, flavonoids, vitamin C, as well as titratable acidity, antioxidant activity and mineral composition of fruits were studied. With identical agrotechnical parameters of cultivation and growing conditions, the fruits have a significant difference in the values of biochemical parameters, which is also due to the uneven distribution of half of the mineral elements with a high proportion of quantitative variability Si+2 (218 %), Pb+2 (90), Mn+3 (82), Sr+2 (77), Bа+2 (72), P+3 (69), Co+2 (44), Cа+2 (37), Zn+2 (27),Mg+2 (26), Ni+2 (18 %) according to the soil profile used for growing apple trees of this variety. Apples growing in the 34th plot are characterized by an increased content of flavonoids (by 2 times), minerals (Al+3- by 2.6 times, B+3 - by 15.6 %, Cr+2 - by 53, 8%, Fe+2 - by 19.0 %, Mn+3 - by 1.7 times, Na+ - by 65.3 times, Ni+2 - by 76.2 %, Si+2 and Zn+2 - by 1.4-1.5 times), for fruits from the 42nd section - organic acids (malic - 3.4 times, succinic - 4.3 times, lactic - 40.1 %), insoluble dietary fiber (by 13.3 %), polyphenols (by 18.9 %), vitamin C (by 47.7 %), macro- and microelements: Ba+2 - by 2.1 times, Ca+2- by 46.4 % , К+ - by 14.2 %, P+3 - by 26.5 %, Sr+2 - by 2.5 times, as well as Co+2 and Ti+2.