Utilization of single‐image normalized difference vegetation index ( <scp>SI</scp> ‐ <scp>NDVI</scp> ) for early plant stress detection

Abstract

Stress was detected in <i>Arabidopsis thaliana</i> seedlings within 15 min of salinity application using SI-NDVI analysis, before stress was visible. Stress was also observed during ammonium nitrate treatment of <i>Eruca sativa</i> plants before visual detection. Early detection of plant stress is possible using SI-NDVI imaging, which is both simpler to use and more cost efficient than traditional dual-image NDVI or hyper-spectral imaging.