Mathematical model GERMINAN for the analysis of germination test results
The objective of this work was to propose a simple mathematical model, called GERMINAN, for the analysis of germination test results obtained through the application of different treatments. To verify the validity of the proposed model, the results of germination tests of Vicia villosa under water a...
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| Autores principales: | , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
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Facultad de Ciencias Agropecuarias
2025
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| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/46850 |
| Aporte de: |
| Sumario: | The objective of this work was to propose a simple mathematical model, called GERMINAN, for the analysis of germination test results obtained through the application of different treatments. To verify the validity of the proposed model, the results of germination tests of Vicia villosa under water and salinity stress, and of Panicum virgatum under water stress, were analyzed and compared with the hydrotime model. Germination tests were performed with the following treatments: control and water potentials of -0.3, -0.6, -0.8, -1, and -1.2 MPa for V. villosa, and -0.8, -1.0, -1.2 MPa for P. virgatum. The osmolytes used were polyethylene glycol (PEG) to simulate water stress and sodium chloride (NaCl) for salinity stress. The overall regression coefficients (R²) of the experimental and modeled results using the GERMINAN, Gummerson, and Bradford models for V. villosa under water stress were 0.981, 0.960, and 0.959, respectively; for salinity, 0.994, 0.963, and 0.962; while for P. virgatum under water stress, they were 0.949, 0.927, and 0.855, respectively. The GERMINAN model demonstrated greater alignment between the experimental and modeled values compared to those obtained with the Gummerson and Bradford models. Moreover, the proposed model can be easily applied using a scientific calculator or Excel program. |
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