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@ARTICLE{Belachew:864997,
      author       = {Belachew, Kiflemariam Y. and Nagel, Kerstin A. and Poorter,
                      Hendrik and Stoddard, Frederick L.},
      title        = {{A}ssociation of {S}hoot and {R}oot {R}esponses to {W}ater
                      {D}eficit in {Y}oung {F}aba {B}ean ({V}icia faba {L}.)
                      {P}lants},
      journal      = {Frontiers in plant science},
      volume       = {10},
      issn         = {1664-462X},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2019-04572},
      pages        = {1063},
      year         = {2019},
      abstract     = {Water deficit may occur at any stage of plant growth, with
                      any intensity and duration. Phenotypic acclimation and the
                      mechanism of adaptation vary with the evolutionary
                      background of germplasm accessions and their stage of
                      growth. Faba bean is considered sensitive to various kinds
                      of drought. Hence, we conducted a greenhouse experiment in
                      rhizotrons under contrasting watering regimes to explore
                      shoot and root traits and drought avoidance mechanisms in
                      young faba bean plants. Eight accessions were investigated
                      for shoot and root morphological and physiological responses
                      in two watering conditions with four replications.
                      Pre-germinated seedlings were transplanted into rhizotron
                      boxes filled with either air-dried or moist peat. The
                      water-limited plants received 50-ml water at transplanting
                      and another 50-ml water 4 days later, then no water was
                      given until the end of the experimental period, 24 days
                      after transplanting. The well-watered plants received 100 ml
                      of water every 12 h throughout the experimental period.
                      Root, stem, and leaf dry mass, their mass fractions, their
                      dry matter contents, apparent specific root length and
                      density, stomatal conductance, SPAD value, and Fv/Fm were
                      recorded. Water deficit resulted in 3–4-fold reductions in
                      shoot biomass, root biomass, and stomatal conductance along
                      with 1.2–1.4-fold increases in leaf and stem dry matter
                      content and SPAD values. Total dry mass and apparent root
                      length density showed accession by treatment interactions.
                      Accessions DS70622, DS11320, and ILB938/2 shared relatively
                      high values of total dry mass and low values of stomatal
                      conductance under water deficit but differed in root
                      distribution parameters. In both treatments, DS70622 was
                      characterized by finer roots that were distributed in both
                      depth and width, whereas DS11320 and ILB938/2 produced less
                      densely growing, thicker roots. French accession Mélodie/2
                      was susceptible to drought in the vegetative phase, in
                      contrast to previous results from the flowering phase,
                      showing the importance of timing of drought stress on the
                      measured response. Syrian accession DS70622 explored the
                      maximum root volume and maintained its dry matter
                      production, with the difference from the other accessions
                      being particularly large in the water-limited treatment, so
                      it is a valuable source of traits for avoiding transient
                      drought.},
      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},
      pubmed       = {pmid:31552067},
      UT           = {WOS:000483729900001},
      doi          = {10.3389/fpls.2019.01063},
      url          = {https://juser.fz-juelich.de/record/864997},
}