Summary
In vivo chlorophyll fluorescence measurements have become a valuable tool in ecophysiology. Fluorescence emission spectra are influenced by the reabsorption of the tissue and indicate the composition of the antenna system and are influenced by the chlorophyll content per leaf area. The fluorescence induction kinetics (“Kautsky effect”) can be used to study photosynthetic activity. These rapid, non-destructive methods can be applied for ecophysiological field research to check the vitality of plants and to document stress effects on the photosynthetic apparatus. The Rfd-values (Rfd=fd/fs), the ratio of the fluorescence decrease (fd) to the steady state fluorescence (fs), can be taken as a rapid vitality index of the leaves and trees. We here describe fundamental chlorophyll fluorescence results of leaves which are needed for the interpretation of in vivo fluorescence signatures in stress physiology and in the forest dieback research.
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Lichtenthaler, H.K., Buschmann, C., Rinderle, U. et al. Application of chlorophyll fluorescence in ecophysiology. Radiat Environ Biophys 25, 297–308 (1986). https://doi.org/10.1007/BF01214643
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DOI: https://doi.org/10.1007/BF01214643