Uman National University | today: 12/25/2025
| Author(s) |
Кирієнко М. В., , , Zamorskyi V.V., Doctor of Agricultural Sciences, , Uman National University of Horticulture, Ukraine |
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|---|---|---|---|
| Category | The Agronomy | ||
| year | 2025 | issue | Issue 107 part 1 |
| pages | 391-398 | index UDK | 634.11:634.1-5:634.1.055:634.1.076 | DOI | 10.32782/2415-8240-2025-107-1-391-398 (Link) |
| Abstract | In Uman National University conducted research on early-mid table grape varieties Kardyshakh Tairovsky, Kishmish Tairovsky, Original, and Perseus; late table varieties Comet, Taiyan, and Zagadka. Four technical varieties were also studied: Rubin Tairovsky, Muscat Odessa, Aromatic, and Zagrey. It was found that the use of foliar feeding in grape plantations was the most effective option using Nutrivant Plus Fruit, Ikar NB 5-17, Ikar Elize, Kruzero, and Floron preparations. Three complexes were used for foliar fertilization. The first included the following preparations: Nutrivant Plus Fruit (4.0 l/ha), Ikar NB 5-17 (1.0 l/ha), Ikar Elize 1.0 l/ha), Kruzero (1.0 l/ha), and Floron (0.5 l/ha). Complex No. 2 consisted of: Nutrivant Plus Fruit (4.0 l/ha), Ikar NB 5-17 (1.0 l/ha), Ikar Elize 1.0 l/ha) and Kruzero (1.0 l/ha). The third complex consisted of the following preparations: Nutrivant Plus Fruit (4.0 l/ha), Ikar NB 5-17 (1.0 l/ha), Ikar Elize 1.0 l/ha) and Fitomare (1.0 l/ha). The research was conducted according to the methodology of M.O. Bublik . The Kardishah Tairovsky grape variety bushes showed the greatest sensitivity to Complex 1, as the total leaf area increased by 64.0% (from 1.66 m2 to 2.72 m2), and the total length of shoots increased from 14.2 m to 23.7 m. Other complexes were less effective. The Kishmish Tairovsky variety was also sensitive to fertilization, as all three complexes showed significant growth compared to the control. Analysis of the data showed growth among all variants of the experiment – the leaf area increased significantly (+54%) – from 1.01 m2 to 1.56 m2. Plants of the Original variety were moderate to foliar fertilization. All complexes provided reliable growth, and Complex 1 proved to be the most effective (+23.0% of leaf area – from 1.09 to 1.34 m2). For Perseus grape bushes, Complex 3 was the best, as the maximum increase in leaf area was 78.0% (from 1.35 m² to 2.40 m²). Among late table grape varieties, all varieties (Comet, Taiyan, Zagadka) showed a significant increase in biometric parameters and leaf surface area when treated with complex fertilizers. Complex 1 was the most effective in all cases. In plantings of the Rubin Tairovsky technical variety, foliar feeding significantly increased biometric indicators. Thus, the total leaf area in the Complex 1 variant increased by 64% relative to the control. High efficiency indicates a good response of the variety to balanced nutrition, which probably ensures intensive growth of the assimilation surface and an increase in photosynthetic potential. The bushes of the well-known Muscat Odessa variety reacted less intensively to fertilizers compared to the Rubin Tairovsky variety. The highest increase in leaf surface (+27% compared to the control) was observed in the Complex 1 variant. The low variability of indicators indicates the genetic stability of the variety. The use of foliar feeding in grape plantations revealed the most effective option using Nutrivant Plus Fruit, Ikar NB 5-17, Ikar Elize, Kruzero, and Floron preparations. Among table varieties, the early-mid varieties Perseus and Kardyshakh Tairovsky and the late-ripening variety Kometa responded most actively. The greatest increase in photosynthetic potential in technical grape varieties using these preparations was observed in the Rubin Tairovsky and Aromatny varieties. | ||
| Key words | grapes, foliar application, photosynthetic potential | ||