@Article{phyton.2025.069246,
AUTHOR = {Qingsong Jiao, Xueyun Hu},
TITLE = {Recent Advances and Emerging Trends in Chlorophyll Fluorescence Parameter F<sub><b>v</b></sub>/F<sub><b>m</b></sub>},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {94},
YEAR = {2025},
NUMBER = {9},
PAGES = {2615--2630},
URL = {http://www.techscience.com/phyton/v94n9/63931},
ISSN = {1851-5657},
ABSTRACT = {Chlorophyll fluorescence, particularly the parameter F<sub>v</sub>/F<sub>m</sub>, has emerged as a reliable, non-invasive indicator of the maximum quantum efficiency of Photosystem II (PSII) in plants. Over the past decade, significant research has leveraged F<sub>v</sub>/F<sub>m</sub> to evaluate plant responses to a wide range of biotic and abiotic stresses, as well as to support crop improvement and ecological monitoring. This review synthesizes recent progress in understanding the physiological basis, measurement techniques, and applied significance of F<sub>v</sub>/F<sub>m</sub> across diverse plant systems. We highlight methodological advancements in fluorescence imaging and remote sensing, identify consistent patterns and contrasting findings in stress-response studies, and explore how F<sub>v</sub>/F<sub>m</sub> correlates with other physiological and molecular indicators. Despite its widespread use, challenges remain regarding data interpretation, environmental variability, and integration with multi-parameter models. This review also addresses critical knowledge gaps and proposes future research directions, including AI-driven analysis, a least-squares support vector machine (LSSVM) model, and high-resolution phenotyping. By consolidating findings from recent literature, this work provides a comprehensive reference for researchers aiming to harness F<sub>v</sub>/F<sub>m</sub> in both basic and applied plant sciences.},
DOI = {10.32604/phyton.2025.069246}
}