Optimizing thermal imaging as a technique for detecting stomatal closure induced by drought stress under greenhouse conditions

摘要: Temperature of leaves or canopies can be used as an indicator stomatal aperture, which is considered a sensitive response to soil water deficit. In this paper we analyse the robustness and sensitivity thermal imaging for detecting changes in conductance leaf status range plant species. Thermal successfully distinguished between irrigated non-irrigated plants variety species under greenhouse controlled chamber conditions, with strong correlations indices measured by porometry. Our results also highlighted issues that need addressed order confident always drought stress using technique. These include variability angles limited reliability ‘wet’ ‘dry’ represent stomata fully open closed. should assist design protocols application crop production ecosystem monitoring.