Assessing the Crop-Water Status in Almond (Prunus dulcis Mill.) Trees via Thermal Imaging Camera Connected to Smartphone
Autor
García-Tejero, Iván Francisco
Ortega-Arévalo, Carlos José
Iglesias-Contreras, Manuel
Moreno, José Manuel
Souza, Luciene
Cuadros Tavira, S.
Durán-Zuazo, Víctor Hugo
Editor
MDPIFecha
2018Materia
Thermal readingsIrrigation scheduling
Data acquisition
Thermal indexes
Non-water stressed baselines
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Different tools are being implemented in order to improve the water management in
agricultural irrigated areas of semiarid environments. Thermography has been progressively
introduced as a promising technique for irrigation scheduling and the assessing of crop-water
status, especially when deficit irrigation is being implemented. However, an important limitation
is related to the cost of the actual cameras, this being a severe limitation to its practical usage by
farmers and technicians. This work evaluates the potential and the robustness of a thermal imaging
camera that is connected to smartphone (Flir One) recently developed by Flir Systems Inc. as a
first step to assess the crop water status. The trial was developed in mature almond (Prunus dulcis
Mill.) trees that are subjected to different irrigation treatments. Thermal information obtained by
the Flir One camera was deal with the thermal information obtained with a conventional Thermal
Camera (Flir SC660) with a high resolution, and subsequently, confronted with other related plant
physiological parameters (leaf water potential, Yleaf, and stomatal conductance, gs). Thermal imaging
camera connected to smartphone provided useful information in estimating the crop-water status
in almond trees, being a potential promising tool to accelerate the monitoring process and thereby
enhance water-stress management of almond orchards.