Assessing water status in rice plants in water-deficient environments using thermal imaging

Abstract Background Rice is a staple food for the global population. However, extreme weather events threaten the stability of the water supply for agriculture, posing a critical challenge to the stability of the food supply. The use of technology to assess the water status of rice plants enables th...

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Main Authors: Chin-Ying Yang, Yan-Ci Zhang, Ya-Ling Hou
Format: Article
Language:English
Published: SpringerOpen 2025-01-01
Series:Botanical Studies
Subjects:
Online Access:https://doi.org/10.1186/s40529-025-00452-4
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author Chin-Ying Yang
Yan-Ci Zhang
Ya-Ling Hou
author_facet Chin-Ying Yang
Yan-Ci Zhang
Ya-Ling Hou
author_sort Chin-Ying Yang
collection DOAJ
description Abstract Background Rice is a staple food for the global population. However, extreme weather events threaten the stability of the water supply for agriculture, posing a critical challenge to the stability of the food supply. The use of technology to assess the water status of rice plants enables the precise management of agricultural water resources. Results The results of this study reveal that rice-producing regions with more severe drought have higher ion leakage rates, lower Soil Plant Analysis Development (SPAD) meter values, and reduced total chlorophyll content in plants. Although no significant differences were observed in red-green-blue (RGB) images, physiological parameters and canopy temperature differed significantly from conventional farming when infrared thermography was used to capture rice plants in the early stages of drought. The Crop Water Stress Index (CWSI), calculated from canopy temperature and atmospheric temperature, indicated a high correlation between access to water for rice plants and their physiological parameters. Regression analysis using CWSI and plant water status yielded a corrected coefficient of determination of 0.86. Conclusion Our study demonstrate that infrared thermography can effectively detect early signs of water stress in rice, aiding farmers in irrigation planning and enabling precise management and optimal utilization of water resources.
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series Botanical Studies
spelling doaj-art-ac9e732bfdf54aa3b0f5755f5e79771c2025-01-26T12:21:36ZengSpringerOpenBotanical Studies1999-31102025-01-0166111110.1186/s40529-025-00452-4Assessing water status in rice plants in water-deficient environments using thermal imagingChin-Ying Yang0Yan-Ci Zhang1Ya-Ling Hou2Department of Agronomy, National Chung Hsing UniversityDepartment of Agronomy, National Chung Hsing UniversityCrop Science Division, Taiwan Agricultural Research Institute, Ministry of AgricultureAbstract Background Rice is a staple food for the global population. However, extreme weather events threaten the stability of the water supply for agriculture, posing a critical challenge to the stability of the food supply. The use of technology to assess the water status of rice plants enables the precise management of agricultural water resources. Results The results of this study reveal that rice-producing regions with more severe drought have higher ion leakage rates, lower Soil Plant Analysis Development (SPAD) meter values, and reduced total chlorophyll content in plants. Although no significant differences were observed in red-green-blue (RGB) images, physiological parameters and canopy temperature differed significantly from conventional farming when infrared thermography was used to capture rice plants in the early stages of drought. The Crop Water Stress Index (CWSI), calculated from canopy temperature and atmospheric temperature, indicated a high correlation between access to water for rice plants and their physiological parameters. Regression analysis using CWSI and plant water status yielded a corrected coefficient of determination of 0.86. Conclusion Our study demonstrate that infrared thermography can effectively detect early signs of water stress in rice, aiding farmers in irrigation planning and enabling precise management and optimal utilization of water resources.https://doi.org/10.1186/s40529-025-00452-4RiceDroughtThermal imagingCrop water stress indexSmart agricultural
spellingShingle Chin-Ying Yang
Yan-Ci Zhang
Ya-Ling Hou
Assessing water status in rice plants in water-deficient environments using thermal imaging
Botanical Studies
Rice
Drought
Thermal imaging
Crop water stress index
Smart agricultural
title Assessing water status in rice plants in water-deficient environments using thermal imaging
title_full Assessing water status in rice plants in water-deficient environments using thermal imaging
title_fullStr Assessing water status in rice plants in water-deficient environments using thermal imaging
title_full_unstemmed Assessing water status in rice plants in water-deficient environments using thermal imaging
title_short Assessing water status in rice plants in water-deficient environments using thermal imaging
title_sort assessing water status in rice plants in water deficient environments using thermal imaging
topic Rice
Drought
Thermal imaging
Crop water stress index
Smart agricultural
url https://doi.org/10.1186/s40529-025-00452-4
work_keys_str_mv AT chinyingyang assessingwaterstatusinriceplantsinwaterdeficientenvironmentsusingthermalimaging
AT yancizhang assessingwaterstatusinriceplantsinwaterdeficientenvironmentsusingthermalimaging
AT yalinghou assessingwaterstatusinriceplantsinwaterdeficientenvironmentsusingthermalimaging