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Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses
2011
Functional Plant Biology
In this study, we investigated the potential of the photochemical resistance index (PRI) to track photosynthetic activity under water stress conditions by measuring PRI, leaf fluorescence, the xanthophyll cycle and photosynthetic activity in different forest tree species subjected to progressive drought. The PRI declined with pre-dawn water potential and a significant relationship between PRI and the xanthophyll de-epoxidation state (DEPS) was observed, although with large interspecific
doi:10.1071/fp10078
pmid:32480874
fatcat:rbcb57mcvzhetaf72dz6uohdj4