The paper deals with the experimental studies of laser-induced fluorescence (LIF) spectra of plants under adverse development conditions at the eye-safe 355 nm wavelength of fluorescence excitation. It has been shown that in the spectral band of 670 - 750 nm a fluorescence spectra shape analysis makes it possible to detect vegetation under adverse development conditions. However, in the spectral band of 375 – 650 nm the resulting data do not give evidence of steady relationship between the fluorescence intensity and the plant conditions.
We have experimentally studied laser-induced fluorescence spectra of plants under man-made soil pollution at the fluorescence excitation wavelength of 355 nm. The paper describes a laboratory setup, presents measurement data of laser-induced fluorescence spectra of plants in the normal condition and under stress caused by man-made soil pollution and shows that the man-made soil pollution has a strong impact on the laser-induced fluorescence spectrum of plants.
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