Articles
THE POTENTIAL OF CHLOROPHYLL FLUORESCENCE MEASUREMENTS TO DETECT SALT AND WATERLOGGING STRESS IN URBAN TREES
Article number
496_32
Pages
253 – 260
Language
Abstract
The measurement of chlorophyll fluorescence for use as a rapid diagnostic tool which detected stress interactions in Betula pendula seedlings is reported.
Seedlings in well-drained or waterlogged conditions were subjected to foliar applications of various concentrations of sodium chloride (NaCl) solutions.
Measurements of leaf chlorophyll fluorescence provided strong correlations with visual necrosis (r2adj = 94.5%), and cell electrolyte leakage (r2adj = 86.9%). Leaf chlorophyll fluorescence was not correlated with stem growth.
Chlorophyll fluorescence values <0.8 indicated the onset of stress.
The opportunities offered by measurements of chlorophyll fluorescence to provide a diagnostic tool for arborists are discussed.
Seedlings in well-drained or waterlogged conditions were subjected to foliar applications of various concentrations of sodium chloride (NaCl) solutions.
Measurements of leaf chlorophyll fluorescence provided strong correlations with visual necrosis (r2adj = 94.5%), and cell electrolyte leakage (r2adj = 86.9%). Leaf chlorophyll fluorescence was not correlated with stem growth.
Chlorophyll fluorescence values <0.8 indicated the onset of stress.
The opportunities offered by measurements of chlorophyll fluorescence to provide a diagnostic tool for arborists are discussed.
Publication
Authors
G.C. Percival, A. Galloway
Keywords
stress, diagnostic tool, chlorophyll fluorescence, Betula pendula
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