Fig. 4From: In vivo label-free mapping of the effect of a photosystem II inhibiting herbicide in plants using chlorophyll fluorescence lifetime a Fluorescence emission spectrum of Flagon EC 400 when excited at 440 nm. b Fluorescence decay curve fitted with double exponential model using the FLIMfit software; c dependence of fluorescence lifetime on detection wavelength. Data shown in b and c was acquired with an excitation wavelength of 405 nmBack to article page