Uman National University | today: 06/27/2025
| Author(s) |
Leontiuk I.B., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Парубок М. І., , , Rozborska L.V., , , |
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| Category | The Agronomy | ||
| year | 2025 | issue | Issue 106 Part 1 |
| pages | 426-435 | index UDK | 633.11:631.81:632.956 | DOI | 10.32782/2415-8240-2025-106-1-426-435 (Link) |
| Abstract | The purpose of this study was to develop agro-technological strategies aimed at intensifying physiological processes in winter wheat plants in order to enhance their adaptive capacity and productivity under resource-limited and stress-prone growing conditions. Field experiments were conducted during 2022–2024 at the educational and production base of Uman National University of Horticulture. The experimental design included four treatments: control (no biopreparation), and seed inoculation with Ecofosforin, Microhumin, and Polymixobacterin. The experiments were carried out on leached chernozem soils with specified agrochemical properties. Key indicators measured included leaf area dynamics at different growth stages (tillering, stem elongation, heading), photosynthetic pigment content (chlorophylls a and b), net photosynthetic productivity, leaf index, and final grain yield. Standard biometric and analytical methods were applied. Seed treatment with microbial preparations significantly improved physiological traits of winter wheat. The highest values of leaf area were recorded with Polymixobacterin (up to 59.2 thousand m²/ha at heading), with a corresponding increase in photosynthetic potential (2.69 million m²·days/ha) and leaf index (5.62). The total chlorophyll content increased by 14.8–24.9% compared to the control, reaching a maximum with Polymixobacterin and Ecofosforin (3.636 and 3.563 mg/g, respectively). Enhanced photosynthetic pigment content and sugar accumulation contributed to increased net photosynthetic productivity: 4.01 g/m² per day in the Polymixobacterin treatment versus 2.38 g/m² in the control. Grain yield also increased significantly. The highest average yield (2022–2024) was achieved with Polymixobacterin — 5.67 t/ha, which exceeded the control by 34%. Ecofosforin and Microhumin increased yields by 26.5% and 16.3%, respectively. The findings confirm the effectiveness of microbial preparations in enhancing the physiological and biochemical parameters of winter wheat, leading to increased photosynthetic activity and yield. The study supports the integration of microbial biostimulants into sustainable wheat production technologies as a viable alternative to synthetic inputs. Such approaches offer both agronomic and ecological benefits, particularly under stress-related and resource-constrained conditions. | ||
| Key words | Winter wheat, microbials, leaves area, pure photosynthesis productivity, yield. | ||