Vol. 10, issue 07, article # 10

pdf Grishin A. I., Matvienko G. G., Kharchenko O. V., Timofeev V. I. Investigation of the plant fluorescence induced by the biharmonic of a Nd:YAG laser. // Atmospheric and oceanic optics. 1997. V. 10. No. 07. P. 503-506.
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Experimental investigations of the fluorescence of tree crowns in the red spectral range induced by the laser radiation with a wavelength of 0.53 μm have been carried out in summer-fall. Dependence of the quantum yield of chlorophyll a fluorescence on plant species has been established and investigated. Seasonal variations of the fluorescence intensity have the tendency to complete decay for the deciduous trees and to insignificant variations for the coniferous trees. Application of the fluorescence method to the remote specific categorization of the plant tissue and determination of the chlorophyll content is shown to be promising.