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Growing degree-hours and degree-days in two management zones for each phenological stage of wheat (Triticum aestivum L.)

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Abstract

Monitoring the climatic conditions of crops is essential for smart agriculture development and adaptation of agricultural systems in the era of global change. Thereby, it is possibly better to understand the stages of development of the crop, thus adopting management practices more efficiently and planning the harvest with greater accuracy. This study was developed to analyze the growing degree-hours and degree-days in two management zones (MZs) for each phenological stage of wheat (Triticum aestivum L.) and the application of low-cost agroclimatological stations to monitor the climatic conditions of the field production. The study was developed in a Ferralsol in Céu-Azul/Brazil. Ten low-cost agrometeorological stations were installed in two MZs delineated based on elevation data using the web platform AgDataBox. Data on solar radiation, atmospheric pressure, wind speed, precipitation, relative humidity, air, and soil temperature were evaluated over two wheat crop seasons. Our results showed different climatic conditions, especially humidity and temperature, between MZs and crop seasons, which could probably cause yield variability. By the low-cost agroclimatological stations, it is possible to collect data on the thermal accumulation by the culture in growing degree-hours, which is a more accurate parameter than the growing degree-days (commonly used in similar studies). With the growing degree-hours data, it was possible to follow the development of the phenological stages of wheat. In conclusion, the results obtained suggest the importance of evaluating agroclimatological parameters in monitoring wheat crops. However, more studies are needed in regions with greater slopes, which may have microclimates that intensely influence the crop.

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Data Availability

The data that support the findings of this study are available from the corresponding author, Rodrigues, M, upon reasonable request.

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Acknowledgements

The authors are grateful to the Araucária Foundation (Fundação Araucária), the Coordination for the Improvement of Higher Education Personnel (CAPES), the National Council for Scientific and Technological Development (CNPq), and the Itaipu Technological Park Foundation (FPTI), for the support received.

Funding

This work was supported by the Coordination for the Improvement of Higher Education Personnel and Itaipu Technological Park Foundation.

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Contributions

Conceptualization: Antonio Marcos Massao Hachisuca and Mahuan Capeletto Abdala. Methodology: Eduardo Godoy de Souza. Formal analysis and investigation: Antonio Marcos Massao Hachisuca and Diandra Ganascini. Writing—original draft preparation: Antonio Marcos Massao Hachisuca. Writing—review and editing: Antonio Marcos Massao Hachisuca and Mahuan Capeletto Abdala. Funding acquisition: Eduardo Godoy de Souza. Resources: Marlon Rodrigues. Supervision: Claudio Leones Bazzi.

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Correspondence to Marlon Rodrigues.

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The authors declare competing interests.

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Hachisuca, A.M.M., Abdala, M.C., de Souza, E.G. et al. Growing degree-hours and degree-days in two management zones for each phenological stage of wheat (Triticum aestivum L.). Int J Biometeorol 67, 1169–1183 (2023). https://doi.org/10.1007/s00484-023-02486-4

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  • DOI: https://doi.org/10.1007/s00484-023-02486-4

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