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Experimentally Studied Laser Fluorescence Method for Remote Sensing of Plant Stress Situation Induced by Improper Plants Watering
Engineering Education # 04, April 2014
DOI: 10.7463/0414.0707937
The paper concerns a laser fluorescence method for vegetation monitoring. It presents the experimental study results of laser-induced fluorescence spectra of plants in stress situations caused by improper watering. It is shown that at 532 nm wavelength of fluorescence excitation a stress factor impact may cause both a magnification of fluorescent signal and a deformation of fluorescence spectrum profile.  An identifying factor to characterize deformation of laser-induced fluorescence spectrum profile can be a relationship of fluorescence intensities at two wavelengths, i.e. 685 and 740 nm. Measurement of fluorescent signal intensity and fluorescence spectrum profile can be a basis of the laser fluorescence method to detect the plant stress situations.

# 05, May 2013
УДК: 504.064.36
Experimental studies of laser fluorescence method for remote control of plant stress situation induced by soil pollution
Engineering Education # 05, May 2013
DOI: 10.7463/0513.0565060
The article describes an experimental setup for studying the laser fluorescence method for control of stress situations for plants. Fluorescence spectra of lawn grass are presented in normal and various stress conditions during fluorescence excitation at the wavelength of 532 nm induced by anthropogenic soil pollution. It is shown that influence of stress factors induced by soil pollution on plants transforms the fluorescence spectrum significantly; these results could be used as a basis for a new laser method for remote control of plants’ condition.
Laser fluorescence detection method of plant stress conditions caused by insufficient nutrients or contaminants in soil
Engineering Education # 12, December 2012
DOI: 10.7463/1212.0506199
The authors analyzed fluorescence spectra of healthy vegetation and greenery under stress caused by lack of nutrients or presence of contaminants in soil. It is shown that use of fluorescence emission in the green or blue-green regions of spectrum and registration of fluorescent radiation in three narrow spectral ranges with central wavelengths of 680, 740 and 700 nm allows reliable detection of vegetation stress.
Experimental studies of laser fluorescence method for remote sensing of plants in stressful situations due to mechanical injuries
Engineering Education # 11, November 2012
DOI: 10.7463/1112.0480063
Experimental setup for studying the condition of plants by laser fluorescence method is described in this article. Fluorescence spectra of lawn grass in normal and stressful situations is also presented. It is shown that influence of stress factor on plants could lead to increase in fluorescent signal.
77-30569/361884 Laser fluorescence method of remote control of plants state under stress
Engineering Education # 04, April 2012
 The authors consider a laser fluorescence method of detection of plants state under stress. It is shown that the laser fluorescence method is an advanced method for remote detection of plants stress states, and it requires further research and development.
 
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