The potential of using existing table grape variety biodiversity to meet the usefulness of the human diet is a key component of improving the existing cultivation of fruit products within the framework of modern agricultural development strategies. The purpose of this study was to establish the possibilities of meeting the needs of the population for valuable nutritional elements based on traditional table grape varieties, which are mainly introduced in the region at the level of small farms and household plots.
Table grape varieties (Arcadia, Nadezhda AZOS, Preobrazhenie, Rumeyka, Dubovsky pink) and strawberry (Fragaria ananassa Duch) varieties (Honey, Rusanivka, Asia, Alba, Clary) – were investigated for the content of calcium, phosphorus, sulphur, magnesium, potassium, zinc, copper, selenium, manganese, glucose, dietary fibre, vitamins A, C, E, PP. The dependence on the factors of the year and variety, their interaction, and the classifying ability of features in the space of canonical functions were calculated as well.
The presence of minerals was analysed by atomic emission spectrometry, glucose (by sugar meter, dietary fibre), enzymatic gravimetric method, vitamins (by fluorometric method, and vitamin C), and titrometric analysis. The possibilities of traditional table grape varieties in meeting the needs for basic valuable food elements are shown and a conclusion is made about the possibilities of selecting appropriate forms. The possibilities are quite capable of meeting modern requirements in this aspect of agricultural development. A predominantly low variability of the studied traits was revealed, which indicates good reproducibility of the obtained result and the predominant influence of the genotype on the development of the corresponding trait in conditions of contrasting environmental characteristics of years. It was found that improvement in only one of the signs – the content of vitamin PP – is problematic. The low differentiating ability of varieties of the Dubovsky pink, Preobrazhenie, and Rumeyka group leads to the need for further clarification on the ability of only the first of the varieties to be a component in the proposed complex.
It is recommended to grow a complex of varieties Nadezhda AZOS and Dubovsky pink. Comprehensively, the variety Clary prevailed in terms of the content of valuable food substances, which is recommended for more intensive production implementation due to its high value in satisfying nutritional needs. Local diversity of older varieties is a good source of hidden polymorphism for use in improving glucose and dietary fiber content. Local varieties also have a high level of content of relevant valuable minerals and vitamins for use in schemes for the genetic improvement of modern varieties of this crop. These characteristics are determined mainly genetically and are weakly dependent on environmental conditions in their formation. In the future, it is planned to study the variability in biochemical parameters of berries for more modern varieties.
Keywords: viticulture; strawberry; genotype; nutritional value; trace elements; product quality; biologically active substances
Citations:
Nazarenko, M., & Petrenko, A. (2024). Biochemical value of table grape varieties when grown in the Northern Steppe of Ukraine. Scientific Horizons, 27(10), in publishing.
Nazarenko, M., & Shytikov R. (2024). Biochemical value of strawberry varieties grown under the conditions of the Northern Steppe of Ukraine. Agriculture and Forestry, 70(3), 29-44. doi: 10.17707/AgricultForest.70.3.02.
Research by: Nazarenko
