Autor: Alexei Solovchenko, Olga B. Chivkunova, Mark N. Merzlyak, Anatoly A. Gitelson, Sergei I. Pogosyan
Rok vydání: 2003
Předmět:
Zdroj: Russian Journal of Plant Physiology. 50:704-710
ISSN: 1021-4437
DOI: 10.1023/a:1025608728405
Popis: Nondestructive techniques developed by the authors for assessment of chlorophylls, carotenoids, and anthocyanins in higher plant leaves and fruits are presented. The spectral features of leaf reflectance in the visible and near infrared regions are briefly considered. For pigment analysis only reflectance values at several specific wavelengths are required. The chlorophyll (Chl) content over a wide range of its changes can be assessed during leaf ontogeny using reflectance near 700 nm and, in the absence of anthocyanins, at 550 nm. The approaches used for elimination of Chl interference in the analysis of carotenoids (reflectance at 520 nm) and anthocyanins (at 550 nm) are described. The suitability of reflectance spectroscopy for estimates of carotenoid/chlorophyll ratios during leaf senescence and fruit ripening is demonstrated. The algorithms developed for pigment analysis are presented, and the conditions of their applicability are considered. Further perspectives for the application of reflectance spectroscopy including remote sensing for estimation of plant pigment content and physiological states are discussed.
Databáze: OpenAIRE
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