Assessment of the influence of apple tree varietal characteristics on the content of micro- and macroelements in cider

The constant improvement of the varietal composition of apple trees in the region actualizes the problem of breeding selection based on a set of biochemistry methods, variety study, statistics of the most promising genotypes for obtaining high-quality domestic processed products with improved macro- and microelement composition. The purpose of the study is to apply a set of statistical analysis methods in order to identify the share of influence of various phenotypic characteristics of the apple tree genotype on the content of macroand microelements in cider, as well as to identify the varieties that are promising in terms of the composition of macro- and microelements in cider. During the statistical analysis of cider data from 25 different apple varieties and forms, no influence of genotype ploidy, ripening period, and degree of fruit maturity on the content of micro- and macroelements in cider was established. Comparison of the average values of the content of chemical elements in apple varieties and crabs made it possible to identify statistically significant differences in potassium content (t = 3,22 at p < 0,01), sodium (t = 2,83 at p < 0,01), magnesium (t = 2,22 at p < 0,05), calcium (t = 2,40 at p < 0,05), iron (t = 3,22 at p < 0,05), cadmium (t = 2,39 at p < 0,05). Based on the application of cluster analysis using the Ward’s method, all studied apple tree genotypes are divided into 3 groups, different in the content of macro- and microelements in the cider. When comparing the distribution by groups, Orfey and Ketni varieties with a more valuable biochemical composition, bright aroma, harmonious taste of fruit products and fruits were chosen for selection and production, which may be due to the presence of species forms and ancient varieties with valuable technological properties in their pedigree.

1. Khalilov E.S., Smykov A.V., Chelebiev E.F., Uskov M.K. The degree of frost resistance of generative buds of promising breeding forms of apple trees in the conditions of the foothill zone of the Crimea. Trudy Kubanskogo gosudarstvennogo agrarnogo universiteta = Proceedings of the Kuban State Agrarian University, 2021, no. 92, pp. 183–189. (In Russian). DOI: 10.21515/1999-1703-92-183-189.

2. Chelebiev E.F. Comprehensive assessment of apple varieties and breeding forms in the conditions of the Crimean foothill zone. Trudy Kubanskogo gosudarstvennogo agrarnogo universiteta = Proceedings of the Kuban State Agrarian University, 2021, no. 93, pp. 238–245. (In Russian). DOI: 10.21515/1999-1703-93-238-245.

3. Chepinoga I.S. Preliminary selection in the apple (Mill.) gene pool of the Krymsk EBS, VIR Branch for organic gardening. Trudy Kubanskogo gosudarstvennogo agrarnogo universiteta = Proceedings of the Kuban State Agrarian University, 2023, no. 105, pp. 278–283. (In Russian). DOI: 10.21515/1999-1703-105-278-283.

4. Egorov E.A., Shadrina Zh.A., Kochyan G.A., Kulikov I.M., Borisova A.A. The role of breeding and nursery centers in the innovative development of the horticulture branch. Sadovodstvo i vinogradarstvo = Horticulture and viticulture, 2020, no. 4, pp. 49–57. (In Russian). DOI: 10.31676/0235-2591-2020-4-49-57.

5. Sedov E.N., Korneeva S.A., Yanchuk T.V. The role of domestic selection in improving the apple assortment in Russia. Vestnik rossiiskoi sel'skokhozyaistvennoi nauki = Vestnik of the Russian Agricultural Science, 2021, no. 4, pp. 17–19. (In Russian). DOI 10.30850/vrsn/2021/4/17-19.

6. Sedov E.N., Korneeva S.A., Yanchuk T.V., Veprintseva M.V. New competitive apple cultivars of VNIISPK breeding for intensive industrial orchards. Vestnik Michurinskogo gosudarstvennogo agrarnogo universiteta = Bulletin of Michurinsk State Agrarian University, 2023, no. 3 (74), pp. 12–17. (In Russian).

7. Shidakov R.S., Shidakova A.S., Khalilov B.Kh. Genotypic interdependence of traits and properties when they are inherited by hybrid offspring of an apple tree. Vestnik rossiiskoi sel'skokhozyaistvennoi nauki = Vestnik of the Russian Agricultural Science, 2022, no. 6, pp. 62–66. (In Russian). DOI: 10.31857/2500-2082/2022/6/62-66.

8. Suprun I.I., Tokmakov S.V., Al-Nakib E.A., Lobodina E.V. Identification of apple genes Md-Exp7 and Md-PG1 alleles in advanced selections resistant to scab. Vavilovskii zhurnal genetiki i selektsii = Vavilov Journal of Genetics and Breeding, 2022, vol. 26, no. 7, pp. 645–651. (In Russian). DOI 10.18699/VJGB-22-79.

9. Suprun I.I., Egorov E.A., Nasonov A.I., Lobodina E.V., Tokmakov S.V., Stepanov I.V. Marker-assisted selection in the development of advanced apple-tree forms and donors combining scab resistance with increased fruit storability. Trudy po prikladnoi botanike, genetike i selektsii = Proceedings on applied botany, genetics and selection, 2023, vol. 184, no. 3, pp. 135– 145. (In Russian). DOI: 10.30901/2227-8834-2023-3-135-145.

10. Pomology: In 5 vol. Vol. 1. Apple tree under the general editorship of Academician of the Russian Academy of Sciences E.N. Sedova. Moscow, RAS, 2020, 634 p. (In Russian).

11. Sedov E.N., Yanchuk T.V., Korneeva S.A. The best zoned apple cultivars of VNIISPK breeding for different regions of Russia. Agrarnaya nauka = Agrarian Science, 2020, no. 10, pp. 92–94. (In Russian). DOI: 10.32634/0869-8155-2020342-10-92-94.

12. Chelebiev E.F., Khalilov E.S., Uskov M.K. New apple varieties of the Nikitsky Botanical Garden selection. Plodovodstvo, semenovodstvo, introduktsiya drevesnykh rastenii = Gardening, seed growing, introduction of woody plants, 2023, vol. 26, pp. 201–206. (In Russian).

13. Ulyanovskaya E.V., Atabiev K.M. Selection improvement of apple tree assortment for southern horticulture. Sadovodstvo i vinogradarstvo = Horticulture and viticulture, 2023, no. 1, pp. 18– 23. (In Russian). DOI: 10.31676/0235-2591-2023-1-18-23