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http://dx.doi.org/10.5532/KJAFM.2019.21.2.111

Preliminary growth chamber experiments using thermal infrared image to detect crop disease  

Jeong, Hoejeong (Department of Applied Plant Science, Chonnam National University)
Jeong, Rae-Dong (Department of Applied Biology, Institute of Environmentally Friendly Agriculture, Chonnam National University)
Ryu, Jae-Hyun (Department of Applied Plant Science, Chonnam National University)
Oh, Dohyeok (Department of Applied Plant Science, Chonnam National University)
Choi, Seonwoong (Department of Applied Plant Science, Chonnam National University)
Cho, Jaeil (Department of Applied Plant Science, Chonnam National University)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.21, no.2, 2019 , pp. 111-116 More about this Journal
Abstract
The biotic stress of garlic and tobacco infected by bacteria and virus was evaluated using a thermal imaging camera in a growth chamber. The remote sensing technique using the thermal camera detected that garlic leaf temperature increased when the leaves were infected by bacterial soft rot of garlic. Furthermore, the temperature of leaf was relatively high for the leaves where the colony-forming unit per mL was large. Such temperature patterns were detected for tobacco leaves infected by Cucumber Mosaic Virus using thermal images. In addition, the crop water stress index (CWSI) calculated from leaf temperature also increased for the leaves infected by the virus. The event such that CWSI increased by the infection of the virus occurred before visual disease symptom appeared. Our results suggest that the thermal imaging camera would be useful for the development of crop remote sensing technique, which can be applied to a smart farm.
Keywords
Thermal infrared image; Leaf temperature; Crop water stress index; Garlic; Tobacco; Crop disease;
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