RESULTS OF SELECTION ON IMPROVEMENT OF THE BIOCHEMICAL COMPOSITION OF FRUITS OF THE APPLE-TREE IN DSOSPK
The article presents the results of biochemical evaluation of varieties, selected and elite seedlings of Apple plant gene pool by the main indicators: soluble dry matter, the sum of sugars, titratable acidity, sugar - acid index, ascorbic acid, largely determining the quality and taste of the fruit. Biochemical composition of fruits of the studied genotypes 231: 9 breeding stations, 14 of Dagestan varieties, introduced 107, 101 selective and elite breeding seedlings, DASPK.Among the varieties and hybrid seedlings, sources of increased content in the fruits of valuable biochemical characteristics were identified.