The chemical composition of apple berry fruits (Malus baccata (L.) Borkh.) in the conditions of Buryatia

The article contains data on the content of elemental composition and organic acids in apple berry in the conditions of Buryatia from 3 places of growth. Soils from different places of apple berry growing differ in the content of the elements. Soils from the vicinity of the Romanovo village contain a significant amount of Ca, S, Cl, and from the Burlakovo - Al, Fe. Samples of soils taken in the Kurdyumka area are rich in K. The soil content data are necessary for determining the degree of absorption of elements by plants. In apple tree leaves, more macro and trace elements are accumulated than in fruits. In this case, the leaves are concentrators P, S, Cl, Ca. Based on the values of the coefficient of biological absorption, it is established that Al, Ti, Cr, Mn, Fe, Zr are absorbed least by plants. In the fruit of apple berry the content of sugars and organic acids is determined. It is established that the fruits, collected from the plants of the Romanovo cenopopulation are distinguished by a significant content of fructose, glucose, sucrose. The greatest amount of benzoic acid was found in apple fruits collected in the vicinity of Kurdyumka village. In the fruits of apple trees harvested in Buryatia, tartaric acid is not found. Biochemical analysis of fruits of apple berry showed that in most small-bodied coenopopulations M. baccata the mass fraction of ascorbic acid does not exceed 0,0012 - 0,003%. The quantity of sugars cannot be markers for apple berry because of their low content in fruits.