Chlorophyll fluorescence of mature lemon trees was measured with a Fraunhofer line discriminator (FLD). An increase in fluorescence was correlated with plant water stress as measured by stomatal resistance and twig water potential.
CITATION STYLE
McFarlane, J. C., Watson, R. D., Theisen, A. F., Jackson, R. D., Ehrler, W. L., Pinter, P. J., … Reginato, R. J. (1980). Plant stress detection by remote measurement of fluorescence. Applied Optics, 19(19), 3287. https://doi.org/10.1364/ao.19.003287
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