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@ARTICLE{Nagel:202475,
      author       = {Nagel, Kerstin and Bonnett, David and Furbank, Robert and
                      Walter, A. and Schurr, U. and Watt, M.},
      title        = {{S}imultaneous effects of leaf irradiance and soil moisture
                      on growth and root system architecture of novel wheat
                      genotypes: implications for phenotyping},
      journal      = {The journal of experimental botany},
      volume       = {66},
      number       = {18},
      issn         = {0022-0957},
      address      = {Oxford},
      publisher    = {Univ. Press},
      reportid     = {FZJ-2015-04684},
      pages        = {5441-5452},
      year         = {2015},
      abstract     = {Plants in the field are exposed to varying light and
                      moisture. Agronomic improvement requires knowledge of
                      whole-plant phenotypes expressed in response to simultaneous
                      variation in these essential resources. Most phenotypes,
                      however, have been described from experiments where
                      resources are varied singularly. To test the importance of
                      varying shoot and root resources for phenotyping studies,
                      sister pre-breeding lines of wheat were phenotyped in
                      response to independent or simultaneous exposure to two
                      light levels and soil moisture profiles. The distribution
                      and architecture of the root systems depended strongly on
                      the moisture of the deeper soil layer. For one genotype,
                      roots, specifically lateral roots, were stimulated to grow
                      into moist soil when the upper zone was well-watered and
                      were inhibited by drier deep zones. In contrast, the other
                      genotype showed much less plasticity and responsiveness to
                      upper moist soil, but maintained deeper penetration of roots
                      into the dry layer. The sum of shoot and root responses was
                      greater when treated simultaneously to low light and low
                      soil water, compared to each treatment alone, suggesting the
                      value of whole plant phenotyping in response to multiple
                      conditions for agronomic improvement. The results suggest
                      that canopy management for increased irradiation of leaves
                      would encourage root growth into deeper drier soil, and that
                      genetic variation within closely related breeding lines may
                      exist to favour surface root growth in response to
                      irrigation or in-season rainfall.},
      cin          = {IBG-2},
      ddc          = {580},
      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:000361208000006},
      pubmed       = {pmid:26089535},
      doi          = {10.1093/jxb/erv290},
      url          = {https://juser.fz-juelich.de/record/202475},
}