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@ARTICLE{Pinto:811278,
      author       = {Pinto, Francisco and Damm, Alexander and Schickling, Anke
                      and Panigada, Cinzia and Cogliati, Sergio and Müller-Linow,
                      Mark and Balvora, Agim and Rascher, Uwe},
      title        = {{S}un-induced chlorophyll fluorescence from high-resolution
                      imaging spectroscopy data to quantify spatio-temporal
                      patterns of photosynthetic function in crop canopies},
      journal      = {Plant, cell $\&$ environment},
      volume       = {39},
      number       = {7},
      issn         = {0140-7791},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2016-03779},
      pages        = {1500 - 1512},
      year         = {2016},
      abstract     = {Passive detection of sun-induced chlorophyll fluorescence
                      (SIF) using spectroscopy has been proposed as a proxy to
                      quantify changes in photochemical efficiency at canopy level
                      under natural light conditions. In this study, we explored
                      the use of imaging spectroscopy to quantify spatio-temporal
                      dynamics of SIF within crop canopies and its sensitivity to
                      track patterns of photosynthetic activity originating from
                      the interaction between vegetation structure and incoming
                      radiation as well as variations in plant function. SIF was
                      retrieved using the Fraunhofer Line Depth (FLD) principle
                      from imaging spectroscopy data acquired at different time
                      scales a few metres above several crop canopies growing
                      under natural illumination. We report the first maps of
                      canopy SIF in high spatial resolution. Changes of SIF were
                      monitored at different time scales ranging from quick
                      variations under induced stress conditions to seasonal
                      dynamics. Natural changes were primarily determined by
                      varying levels and distribution of photosynthetic active
                      radiation (PAR). However, this relationship changed
                      throughout the day demonstrating an additional physiological
                      component modulating spatio-temporal patterns of SIF
                      emission. We successfully used detailed SIF maps to track
                      changes in the canopy's photochemical activity under field
                      conditions, providing a new tool to evaluate complex
                      patterns of photosynthesis within the canopy.},
      cin          = {IBG-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000381496900010},
      pubmed       = {pmid:26763162},
      doi          = {10.1111/pce.12710},
      url          = {https://juser.fz-juelich.de/record/811278},
}