Fluorescence spectra as an indicator of the influence of environmental conditions on fruit trees

Matilda Mema 1, *, Kejda Kristo 2 and Emil Xhuvani 2

1 Department of Physics, Faculty of Mathematical and Physical Engineering, Polytechnic, University of Tirana, Albania.
2 Department of Physics, Faculty of Natural Sciences, University of Tirana, Albania.
 
Research Article
International Journal of Science and Research Archive, 2024, 12(01), 241–245.
Article DOI: 10.30574/ijsra.2024.12.1.0775
Publication history: 
Received on 21 March 2024; revised on 03 May 2024; accepted on 06 May 2024
 
Abstract: 
Molecular fluorescence spectra determine possible structural changes of these molecules and provide data (by comparing them with absorption ones) on the efficiency of solar energy utilization. Fluorescence emission spectra provide information on the functionality of the photosynthetic apparatus by means of two bands red F690 and beyond red F735. The objective of the study is to highlight possible changes in the organization and operation of the photosynthetic apparatus, induced by different radiations, in the leaves, for a variety of pear (Santa Maria), based on the characteristics of the two bands of emitted fluorescence. The Santa Maria variety was studied in the period of June.
 
Keywords: 
Fluorescence spectra; Chl a; Chl b; F690; F735
 
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