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A Two-channel Hyperspectral Radiometer for the Assessment of Photosynthetic Radiation-use Efficiency

✍ Scribed by M. Méthy

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 129 KB
Volume: 75
Category: Article
ISSN: 0021-8634
DOI: 10.1006/jaer.1999.0488

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✦ Synopsis

A radiometric device was designed for simultaneous measurement of plant canopy re#ectance in two narrow wavelength bands centred around 531 and 570 nm. The device facilitates a quick analysis of a photochemical re#ectance index (PRI, a non-intrusive indicator of xanthophyll cycle pigments and of photosystem II photochemical e$ciency of leaves). The robustness of the apparatus, the low cost of the components make it suitable for ecological studies and "eld measurements. Some examples of applications are outlined.

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