Fig. 5. Band location of the derivative chlorophyll index (DCI) calculated as D705/D722, developed to track changes due to the double peak generated by the suggested effects of pigment and chlorophyll fluorescence at the canopy level in stressed vegetation (healthy site, GY41: Fv/Fm = 0.81; Ca+b = 38.8 µg/cm2; stressed site, MD35: Fv/Fm = 0.75; Ca+b = 19.08 µg/cm2)