A Theoretical Model Research of Rice Water Stress Index Based on Automated Infrared Thermal Imaging

Abstract:

It detected the canopy temperature of rice via automated infrared imaging technology in the test under different irrigation condition, and used the CWSI theoretical model to diagnose whether the crop suffered water stress or not. It also analyzed the water stress index theoretical model of crop and other indexes on reflecting the water status of crop, including the relationship between the CWSI and leaf stomatal resistance, the CWSI and leaf net photosynthetic rate, and the CWSI and the soil moisture content. The results showed that the relations between the surface theoretical model and the above indexes were fine. It meant the CWSI well reflected the features of water stress of rice.

• Periodical: Advanced Materials Research (Volumes 712-715)
• Pages: 433-438
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.712-715.433
• Online since: June 2013
• Authors: Ming Chao Cao*, Wen Zhong Zhang, Ya Dong Han, Chen Yao, Yi Tao Wang, Guo Hua Ding
• Keywords: Automated Infrared Thermal Imaging, Crop Water Stress Index (CWSI), Net Photosynthetic Rate, Soil Moisture Content, Stomatal Resistance

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