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@ARTICLE{Zarebanadkouki:820930,
      author       = {Zarebanadkouki, Mohsen and Meunier, Félicien and Couvreur,
                      Valentin and Cesar, Jimenez and Javaux, Mathieu and
                      Carminati, Andrea},
      title        = {{E}stimation of the hydraulic conductivities of lupine
                      roots by inverse modelling of high-resolution measurements
                      of root water uptake},
      journal      = {Annals of botany},
      volume       = {118},
      number       = {4},
      issn         = {1095-8290},
      address      = {Oxford},
      publisher    = {Oxford University Press},
      reportid     = {FZJ-2016-06194},
      pages        = {853 - 864},
      year         = {2016},
      abstract     = {Background and Aims Radial and axial hydraulic
                      conductivities are key parameters for proper understanding
                      and modelling of root water uptake. Despite their
                      importance, there is limited experimental information on how
                      the radial and axial hydraulic conductivities vary along
                      roots growing in soil. Here, a new approach was introduced
                      to estimate inversely the profile of hydraulic
                      conductivities along the roots of transpiring plants growing
                      in soil.Methods A three-dimensional model of root water
                      uptake was used to reproduce the measured profile of root
                      water uptake along roots of lupine plant grown in soil. The
                      profile of fluxes was measured using a neutron radiography
                      technique combined with injection of deuterated water as
                      tracer. The aim was to estimate inversely the profiles of
                      the radial and axial hydraulic conductivities along the
                      roots.Key Results The profile of hydraulic conductivities
                      along the taproot and the lateral roots of lupines was
                      calculated using three flexible scenarios. For all
                      scenarios, it was found that the radial hydraulic
                      conductivity increases towards the root tips, while the
                      axial conductivity decreases. Additionally, it was found
                      that in soil with uniform water content: (1) lateral roots
                      were the main location of root water uptake; (2) water
                      uptake by laterals decreased towards the root tips due to
                      the dissipation of water potential along the root; and (3)
                      water uptake by the taproot was higher in the distal
                      segments and was negligible in the proximal parts, which had
                      a low radial conductivity.Conclusions The proposed approach
                      allows the estimation of the root hydraulic properties of
                      plants growing in soil. This information can be used in an
                      advanced model of water uptake to predict the water uptake
                      of different root types or different root architectures
                      under varying soil conditions.},
      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:000386487600025},
      pubmed       = {pmid:27539602},
      doi          = {10.1093/aob/mcw154},
      url          = {https://juser.fz-juelich.de/record/820930},
}