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@ARTICLE{Perelman:887933,
      author       = {Perelman, Adi and Jorda, Helena and Vanderborght, Jan and
                      Lazarovitch, Naftali},
      title        = {{T}racing root-felt sodium concentrations under different
                      transpiration rates and salinity levels},
      journal      = {Plant and soil},
      volume       = {447},
      number       = {1-2},
      issn         = {1573-5036},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2020-04525},
      pages        = {55 - 71},
      year         = {2020},
      abstract     = {Aims(1) Monitoring ‘root-felt’ salinity by using
                      rhizoslides as a non-invasive method, (2) Studying how
                      transpiration rate, salinity in irrigation water, and root
                      water uptake affect sodium distribution around single roots,
                      (3) Interpreting experimental results by using simulations
                      with a 3-D root system architecture model coupled with water
                      flow and solute transport models.MethodsTomato plants were
                      grown on rhizoslides under various salinity levels and two
                      transpiration rates: high and low. Daily root images were
                      processed with GIMP and incorporated into a 3-D numerical
                      model. The experiments were simulated with R-SWMS, a
                      3-dimensional numerical model that simulates water flow and
                      solute transport in soil, into the root and inside root
                      systems.ResultsBoth experimental and simulation results
                      displayed higher root-felt sodium concentrations compared
                      with the bulk concentrations, and larger accumulation at
                      higher transpiration rate. The simulations illustrated that
                      the root-felt to bulk concentration ratio changed during the
                      experiment depending both on the irrigation water salinity
                      and transpiration rate.ConclusionsChanges in sodium
                      concentrations with transpiration rates are most likely
                      caused by root water uptake and ion exclusion. Simulation
                      results indicate that root-scale process models are required
                      to link root system architecture, environmental, and soil
                      conditions with root-felt salinities.},
      cin          = {IBG-3},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000519658900006},
      doi          = {10.1007/s11104-019-03959-5},
      url          = {https://juser.fz-juelich.de/record/887933},
}