Fluorescent indices of oak and wheat leaves in dependence on chlorophyll content

Olesya А. Kalmatskaya; Vladimir A. Karavaev; Lyudmila E. Gunar

doi:10.1117/12.2229840

21 April 2016 Fluorescent indices of oak and wheat leaves in dependence on chlorophyll content

Olesya А. Kalmatskaya, Vladimir A. Karavaev, Lyudmila E. Gunar

Proceedings Volume 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS); 99170O (2016) https://doi.org/10.1117/12.2229840
Event: Saratov Fall Meeting 2015, 2015, Saratov, Russian Federation

Abstract

Fluorescence spectra and fluorescence induction curves of the leaves of two plant species in dependence on chlorophyll content were studied. Red oak (Quercus rubra L.) leaves upon the autumn chlorophyll degradation, as well as wheat leaves (Triticum aestivum L.) at various stages of ontogenesis showed linear dependence between the ratio ω = F740 / F685 (the ratio of the maximum values of fluorescence at respective wavelengths) and chlorophyll content. In both cases, parameter F_v / F_m (the relative value of the variable fluorescence) remained almost unchanged up to significant reduction of chlorophyll content, indicating on maintaining the high photochemical activity of photosystem 2.

Citation Download Citation

Olesya А. Kalmatskaya, Vladimir A. Karavaev, and Lyudmila E. Gunar "Fluorescent indices of oak and wheat leaves in dependence on chlorophyll content", Proc. SPIE 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS), 99170O (21 April 2016); https://doi.org/10.1117/12.2229840

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