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Evaluation of dry matter accumulation and water loss dynamics of maize (Zea mays L.) hybrids in a long-term field experiment
Published:
2025-06-30
https://doi.org/10.12666/ebcxtk74
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Copyright (c) 2025 Árpád Illés, János Sólyom, János Nagy, Csaba Bojtor
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Illés, Á., Sólyom, J., Nagy, J., & Bojtor, C. (2025). Evaluation of dry matter accumulation and water loss dynamics of maize (Zea mays L.) hybrids in
a long-term field experiment. Növénytermelés, 74(2), 51-63. https://doi.org/10.12666/ebcxtk74
Abstract
The extremely hot summer weather in 2024 provided favorable conditions for the heat sum-based evaluation of maize hybrids. At the University of Debrecen's Látókép Experimental Station, we evaluated the development, dry matter accumulation, and water loss dynamics of five hybrids with different FAO numbers (P9398, P9944, P9975, P0450, P0710).
Based on the results, hybrid-specific physiological maturation and dry matter accumulation could be well monitored as a function of the useful heat sum. The dry matter and grain moisture values determined during sampling allowed for accurate characterization of the water loss rate, which showed significant differences between the hybrids. The timing and duration of the intensive water loss phase are decisive for the harvest date and drying costs. Heat sum-based monitoring is a reliable tool for determining the phenological stages of maize hybrids and can contribute to the optimization of cultivation technology in a changing climate.
Based on the results, hybrid-specific physiological maturation and dry matter accumulation could be well monitored as a function of the useful heat sum. The dry matter and grain moisture values determined during sampling allowed for accurate characterization of the water loss rate, which showed significant differences between the hybrids. The timing and duration of the intensive water loss phase are decisive for the harvest date and drying costs. Heat sum-based monitoring is a reliable tool for determining the phenological stages of maize hybrids and can contribute to the optimization of cultivation technology in a changing climate.
