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Atmospheric and Oceanic Optics

2016 year, number 1

Stability of results of plant state detection by laser fluorescence method

Yu.V. Fedotov, O.A. Bullo, M.L. Belov, V.A. Gorodnichev
N. E. Bauman Moscow State Technical University, 2-nd Baumanskaya str., 5, 105005, Moscow, Russia
Keywords: лазерный флуоресцентный метод, контроль состояния растительности, спектры флуоресценции, стабильность, laser fluorescence method, vegetation monitoring, fluorescence spectra, stability


Laser fluorescence method of plant state detection is considered. Laboratory setup is described and analysis of plant fluorescence spectra excited at a wavelength of 532 nm are presented. It is shown that the measurement small series average of the fluorescence intensity ratio R at wavelengths of 685 and 740 nm is marked by high stability for different samples of a plant. Sum of confidential intervals of ratio R (for confidential probability 95%) in most cases is no more than difference of mean values of the ratio R for normal and stress states caused by various reasons.