signature=5b52530ea186171f740a85819bf304cb,Laser-induced imaging of blue/red and blue/far-red fluore...

摘要：

Green plants exhibit a blue (F440), green (F520), red (F690) and far-red (F740) fluorescence emission. These laser-induced fluorescence (LIF) signatures and ratios allow an early stress diagnosis. The fluorescence ratios blue/red (F440/F690) and blue/far-red (F440/F735) proved to be very sensitive indicators of ongoing stress events. This has been demonstrated by fluorescence emission spectra and the new fluorescence imaging technique. High-light, water and temperature stress as well as nitrogen deficiency, herbicide application, or attacks by mites, etc., can easily be monitored via increasing or decreasing fluorescence ratios and images

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