The photochemical reflectance index (PRI) as a water-stress index Thénot, F. Méthy, M. /Winkel, Thierry PHYSIOLOGIE VEGETALE PLANTE CULTIVEE FEUILLE REFLECTANCE PHOTOSYNTHESE CHLOROPHYLLE CLIMAT ANALYSE STATISTIQUE ETUDE COMPARATIVE STRESS HYDRIQUE 2002 text https://www.documentation.ird.fr/hor/fdi:010038624 fdi:010038624 Thénot F., Méthy M., Winkel Thierry. The photochemical reflectance index (PRI) as a water-stress index. 2002, 23 (23), 5135-5139 EN BOLIVIE