ADAPTIVE POTENTIAL AND SEED PRODUCTIVITY OF PEAS UNDER THE USE OF FUNGICIDAL PREPARATIONS IN THE ARID CONDITIONS OF SOUTHERN UKRAINE
Abstract
The purpose. To scientifically substantiate the optimal sowing dates and fungicidal protection schemes as factors for increasing the seed productivity of field peas (Pisum sativum L.) in the arid conditions of Southern Ukraine.
Methods and Materials. The study employed the field method (environmental factors influence), visual-laboratory method (phytosanitary assessment), measurement-weight method (yield structure analysis), comparative method (efficacy of chemical products), and mathematical-statistical method (Excel-based analysis of result reliability).
Results. The application of optimal agrotechnical parameters promoted the formation of maximum pea seed productivity. A comprehensive analysis of data collected during 2023–2025 confirmed that pea yield in Southern Ukraine is determined by the synergy between sowing dates and fungicidal protection systems. The third decade of March was identified as the optimal sowing period (average productivity – 2.40 t/ha), proving more effective than the second decade of March or the first decade of April. All fungicidal protection variants yielded a significant increase compared to the control (1.78 t/ha). The best results were provided by a product based on trifloxystrobin and prothioconazole (2.54 t/ha, +42.7% over the control). Slightly lower but still high performance was demonstrated by a mixture of flutriafol and carbendazim (2.49 t/ha), while schemes involving azoxystrobin ensured yields at the level of 2.35–2.41 t/ha. Conclusions. Research conducted from 2023 to 2025 confirmed that sowing in the third decade of March ensures the highest pea productivity in Southern Ukraine. Using the fungicide trifloxystrobin + prothioconazole (0.5 L/ha), record figures were achieved: number of pods – 6.34, 1,000-seed weight – 278.12 g, and plant productivity – 4.28 g. The maximum seed productivity of the crop (2.64 t/ha) was established under the condition of sowing in the third decade of March and treating the crops with a fungicide containing trifloxystrobin and prothioconazole. The results obtained suggest that the scientifically substantiated application of modern fungicides within an integrated pea protection system, along with the use of optimal treatment timing, is an effective measure for stabilizing yields and improving seed quality under the arid conditions of Southern Ukraine.
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