Uman National University | today: 07/30/2026
| Author(s) |
Яценко В. В., , , Луценко І. С., , , Яценко Н. В., , , Yatsenko A.A., Doctor of Agricultural Sciences, , Uman National University of Horticulture, Ukraine |
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| Category | The Agronomy | ||
| year | 2026 | issue | Issue 108 part 1 |
| pages | 94-103 | index UDK | 635.652:631.559:631.526.32:631.563 | DOI | 10.32782/2415-8240-2026-108-1-94-103 (Link) |
| Abstract | The study is devoted to determining the optimal harvesting dates for bush bean (Phaseolus vulgaris L.) cultivars of different types – snap bean and flageolet – to ensure maximum marketable yield. The experiment was conducted at the research plots of the Department of Crop Production at Uman National University of Horticulture in 2024–2025 on leached chernozem heavy loam soil. The study included cultivars registered in the State Register of Plant Varieties of Ukraine (Laura st, Apex, Berggold, Cannellino, Saxa, Supernano giallo, Topcrop) and introduced classical flageolet cultivars (Chevrier Vert, Elsa, Flambeau, Flamingo). The cultivar Laura served as the control. The experiments were established using the randomization method with four replications. The accounting plot area was 10 m², with a sowing pattern of 45×10 cm. Yield was assessed at the technical ripeness stages of pods (BBCH 81, 89) according to DSTU EEC OOOFFV-06. The dynamics of pod length, width, and weight formation, as well as marketable yield, were studied over 7–19 days after flowering. Significant differences between the types were established for the studied traits. In the snap bean type, pod length increased from 10.37 cm (day 7) to 14.53 cm (day 19), width – from 0.54 cm to 0.88 cm, with maximum pod weight (6.39 g) and yield (22.01 t/ha) achieved on day 13. In the flageolet type, pod length ranged from 9.27 cm to 14.12 cm, width – from 0.53 cm to 1.19 cm, with maximum pod weight (7.34 g) and yield (22.50 t/ha) formed on day 16. After reaching peak values, a decline in productivity was observed due to physiological aging of pods. Snap bean cultivars are characterized by prolonged pod growth and uniform thickening, while flageolet forms wider and heavier pods with earlier morphological stabilization. The optimal harvesting dates are 13–16 days after flowering for the snap bean type and 16 days for flageolet. The obtained results have practical significance for improving the cultivation technology of bush bean and increasing the efficiency of its production. | ||
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