Articles | Volume 18, issue 2
Research article
20 Jan 2021
Research article |  | 20 Jan 2021

Unraveling the physical and physiological basis for the solar- induced chlorophyll fluorescence and photosynthesis relationship using continuous leaf and canopy measurements of a corn crop

Peiqi Yang, Christiaan van der Tol, Petya K. E. Campbell, and Elizabeth M. Middleton

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Cited articles

Adams, W. W., Diaz, M., and Winter, K.: Diurnal changes in photochemical efficiency, the reduction state of Q, radiationless energy dissipation, and non-photochemical fluorescence quenching in cacti exposed to natural sunlight in northern Venezuela, Oecologia, 80, 553–561, 1989. 
Baba, K., Shibata, R., and Sibuya, M.: Partial correlation and conditional correlation as measures of conditional independence, Aust. Nz. J. Stat., 46, 657–664,, 2004. 
Baker, N. R.: Chlorophyll fluorescence: A probe of photosynthesis in vivo, Annu. Rev. Plant Biol., 59, 89–113,, 2008. 
Campbell, P. K. E., Huemmrich, K. F., Middleton, E. M., Ward, L. A., Julitta, T., Daughtry, C. S. T., Burkart, A., Russ, A. L., and Kustas, W. P.: Diurnal and seasonal variations in chlorophyll fluorescence associated with photosynthesis at leaf and canopy scales, Remote Sens.-Basel, 11, p. 488,, 2019. 
Chang, C. Y., Guanter, L., Frankenberg, C., Köhler, P., Gu, L., Magney, T. S., Grossmann, K., and Sun, Y.: Systematic assessment of retrieval methods for canopy far-red solar-induced chlorophyll fluorescence (SIF) using high-frequency automated field spectroscopy, J. Geophys. Res.-Biogeo., 125, e2019JG005533,, 2020. 
Short summary
Solar-induced chlorophyll fluorescence (SIF) has the potential to facilitate the monitoring of photosynthesis from space. This study presents a systematic analysis of the physical and physiological meaning of the relationship between fluorescence and photosynthesis at both leaf and canopy levels. We unravel the individual effects of incoming light, vegetation structure and leaf physiology and highlight their joint effects on the relationship between canopy fluorescence and photosynthesis.
Final-revised paper