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Measuring Efficient Light Usage in Plants

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Measuring Efficient Light Usage in Plants

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When used with spectral measurements from a filed spectroradiometer such as the PSR+ from Spectral Evolution, the Photochemical Reflectance Vegetation Index (PRI) and Red/Green Vegetation Index (Red/Green) can provide researchers with important data on the ability of vegetation to efficiently use sunlight for photosynthesis. This data can provide a picture of plant health including an assessment of plant stress. One of the 19 vegetation indices offered with DARWin SP Data Acquisition software and the PSR+ field spectroradiometer, PRI looks at the carotenoid pigments, especially the xanthophyll pigments absorbed by plants.

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