Toward noninvasive monitoring of plant leaf water content by electrical impedance spectroscopy
| Autor: | Serrano-Finetti, Ernesto, Castillo, Eduardo, Alejos, Smith, León Hilario, Ludwin Misael |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. ISI - Grup d'Instrumentació, Sensors i Interfícies |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Plant water content
Plant electrical properties Electrical impedance spectroscopy Enginyeria electrònica [Àrees temàtiques de la UPC] Relacions planta-aigua Impedance spectroscopy Pendiente Forestry Plant-water relationships Espectroscòpia d'impedància Horticulture Agronomy and Crop Science Computer Science Applications |
| Zdroj: | Repositorio Institucional-Ulima Universidad de Lima |
| Popis: | Plant water content is one key factor that affects the wellbeing of plants. Furthermore, detecting plant water needs in a timely manner is important when considering irrigation strategies (water management). A first step toward plant water monitoring is the availability of a portable and cost-effective system that yields reliable information. Electrical impedance spectroscopy (EIS) has previously been used invasively to provide such data and can be implemented at an acceptable cost. In this work, a cost-effective impedance analyzer capable of performing noninvasive four-electrode measurements was built. In addition, data fitting has been improved by using a modified equivalent circuit model, yielding relevant information about the plant water status. The results show that the resistor that models the extracellular fluid can track the change in the water content of a plant leaf while it is drying at room temperature. On the other hand, impedance data might provide information about the leaf tissue structure at small interelectrode distances. This work was funded by The Scientific Research Institute (IDIC) of the Universidad de Lima (Perú) as part of the research project “Medición en tiempo real de la Impedancia eléctrica para la detección de estrés hídrico en cultivos de espinaca”. |
| Databáze: | OpenAIRE |
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