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field chlorophyll a/b measurements

Laurent Cournac laurent.cournac at cea.fr
Wed Sep 8 11:00:26 EST 1999

Dear netters,

I am currently investigating the different available technical possibilities
of getting field measurements of leaf chlorophyll a/b ratios (or eventually
other sun/shade adaptation characteristics related to PS/LHC distributions
that could be assayed in situ).

-Are there satisfactory non-destructive protocols (based for instance on
reflectance, absorbance, fluorescence...) that could be applied directly to
attached leaves?
-If not, could you suggest low-cost portable spectrophotometers (able to work
in tropical conditions) that could achieve the task on solvant extracts.

Any advice or suggestion would be greatly appreciated.
Laurent Cournac.

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