![]() Using thermography and IR thermometry, highly significant and close relationships were established between canopy temperature and leaf water potential. Interestingly, enough similar results were observed for processed, by unmixing the soil influence, and unprocessed thermal images at soil coverage higher than 60 %. Both methods allowed discriminating differences in salt tolerance. Differences among treatments and between cultivars, with differences varying between 19 and 02 degrees C, respectively, were in dense crop stands comparably well ascertained by IR thermometry and thermography. Therefore, we compared the potential of high-resolution thermography and infrared (IR) thermometry to discriminate among stress treatments (control, drought, salt and combined salt and drought) and cultivar effects in large container-based experiments that mimicked field conditions. Considerable research has been carried out with each of these techniques individually however, a comparable assessment has not been done to the best of our knowledge. Abstract The temperature of leaves and canopies of plants has long been recognised to be an indicator of plant water stress and can be assessed by thermometry or thermography.
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