A narrow-waveband spectral index that tracks diurnal changes in photosynthetic efficiency

doi:10.1016/0034-4257(92)90059-S

Remote Sensing of Environment

Volume 41, Issue 1, July 1992, Pages 35-44

https://doi.org/10.1016/0034-4257(92)90059-S Get rights and content

Abstract

We present a new “physiological reflectance index” (PRI) isolated from narrow waveband spectral measurements of sunflower canopies. This index correlates with the epoxidation state of the xanthophyll cycle pigments and with the efficiency of photosynthesis in control and nitrogen stress canopies, but not in water stress canopies undergoing midday wilting. It is analogous in formulation to the broadband normalized difference vegetation index (NDVI) and uses reflectance at 531 nm and at a reference wavelength to minimize complications associated with diurnal sun angle changes. In conjunction with other methods, this index may lead to improved remote and ground-based estimates of canopy photosynthetic function.

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^☆: CIW DPB Publication #1105.

^†: Present address: Institut de Recerca i Tecnologia Agroalimentaries, 08348 Cabrils (Barcelona), Spain.

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A narrow-waveband spectral index that tracks diurnal changes in photosynthetic efficiency☆

Abstract

Biochim. Biophys. Acta

Remote Sens. Environ.

Remote Sens. Environ.

Remote Sens. Environ.

Remote Sens. Environ.

Light-induced spectral absorbance changes in relation to photosynthesis and the epoxidation state of xanthophyll cycle components in cotton leaves

Plant Physiol.

An image recorded by the airborne visible/infrared imaging spectrometer (AVIRIS)

Int. J. Remote Sens.