Peñuelas, Josep Photochemical reflectance index (PRI) and remote sensing of plant CO₂ uptake. [electronic resource] - The New phytologist Aug 2011 - 596-599 p. digital Publication Type: Letter; Research Support, Non-U.S. Gov't ISSN: 1469-8137 Standard No.: 10.1111/j.1469-8137.2011.03791.x doi Subjects--Topical Terms: Carbon Dioxide--metabolismChlorophyll--metabolismEcosystemEnvironmental Monitoring--methodsLightPhotochemistryPhotosynthesisPlant Leaves--metabolismPlants--metabolism