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@ARTICLE{Soukupov:59237,
      author       = {Soukupová, J. and Cséfalvay, L. and Urban, O. and
                      Kosvancová, M. and Marek, M. and Rascher, U. and Nedbal,
                      L.},
      title        = {{A}nnual variation of the steady-state chlorophyll
                      fluorescence emission of evergreen plants in temperate zone},
      journal      = {Functional plant biology},
      volume       = {35},
      issn         = {1445-4408},
      address      = {Collingwood, Victoria},
      publisher    = {CSIRO Publ.},
      reportid     = {PreJuSER-59237},
      pages        = {63 - 76},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Remotely sensed passive chlorophyll fluorescence emission
                      has a potential to become one of the major global-scale
                      reporter signals on vegetation performance and stress. In
                      contrast to the actively probed parameters such as maximal
                      (FM') or minimal (F-0') emission, the steady-state
                      chlorophyll fluorescence, Chl-F-S, (FM' > Chl-FS > F-0') has
                      not been adequately studied. Using fluorescence imaging of
                      leaves, we explored the modulation of Chl-F-S by actinic
                      irradiance and by temperature in laboratory, as well as the
                      changes that occurred in three coniferous and broadleaf
                      plant species grown in field. The experiments revealed that
                      Chl-F-S is largely insensitive to the incident irradiance
                      once this is above early morning or late evening levels. The
                      characteristic, pre-noon measured Chl-F-S correlated
                      positively with the CO2 assimilation rate when measured in
                      field during the year. It was low and stable in the cold
                      winter months and steeply increased with the spring onset.
                      The high values of the characteristic Chl-F-S persisted
                      throughout the vegetation season and rapidly decreased in
                      the fall. The seasonal Chl-F-S transitions coincided with
                      the last spring frosts or the first fall frosts that
                      persisted for several consecutive nights. The transitions
                      were marked by an elevated variability of the Chl-F-S
                      signal. We propose that the signal variability occurring
                      during the transition periods can be used to detect from
                      satellites the beginning and the end of the photosynthetic
                      activity in evergreen canopies of the temperate zone.},
      keywords     = {J (WoSType)},
      cin          = {ICG-3},
      ddc          = {580},
      cid          = {I:(DE-Juel1)ICG-3-20090406},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000252756600006},
      doi          = {10.1071/FP07158},
      url          = {https://juser.fz-juelich.de/record/59237},
}