文档介绍：
A Theoretical Model Research of Rice Water Stress Index
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based on Infrared Thermal Imaging
GAO Mingchao1, ZHANG Wenzhong1, YAO Chen1, YIN Dawei1, CHENG Xiaoyi1,
PEI Yao1, YU Jilin2, ZHAO Miaomiao1**
(1. Rice Research Institute, Key Laboratory of Northeast Rice Biology and Breeding, Ministry of
Agriculture, Key Laboratory of Northern Japonica Rice ics and Breeding, Ministry of
Education, Shenyang Agricultural University, ShenYang 110866;
2. College of Agronomy, Shenyang Agricultural University, ShenYang 110866)
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 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.
Keywords: Rice; Infrared thermal imaging; Crop water stress index (CWSI); Stomatal resistance; Net
photosynthetic rate; Soil moisture content
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