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@ARTICLE{Hecht:851721,
      author       = {Hecht, V. L. and Temperton, V. M. and Nagel, Kerstin and
                      Rascher, U. and Pude, R. and Postma, Johannes A.},
      title        = {{P}lant density modifies root system architecture in spring
                      barley ({H}ordeum vulgare {L}.) through a change in nodal
                      root number},
      journal      = {Plant and soil},
      volume       = {439},
      number       = {1-2},
      issn         = {1573-5036},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2018-05253},
      pages        = {179-200},
      year         = {2019},
      abstract     = {Aim: Previously, we showed that sowing density influences
                      root length density (RLD), specific root length (SRL)
                      especially in the topsoil, and shallowness of fine roots of
                      field grown spring barley (Hordeum vulgare L.). Here, we ask
                      which trait components may explain these observed changes.
                      Method We grew two spring barley cultivars at contrasting
                      sowing densities in both field trials and rhizotrons, and
                      excavated root crowns and imaged root growth.Results In the
                      field, tiller and nodal root numbers per plant decreased
                      with increasing sowing density, however, nodal roots per
                      tiller, seminal roots per plant, and lateral branching
                      frequencies were not affected. Branching angle did not or
                      only slightly declined with increasing sowing density. In
                      rhizotrons, aboveground only tiller number was affected by
                      sowing density. Root growth rates and counts were not (or
                      only slightly) affected. Conclusion Greater RLD at high
                      sowing densities is largely explained by greater main root
                      number per area. The altered seminal to nodal root ratio
                      might explain observed increases in SRL. We conclude that
                      sowing density is a modifier of root system architecture
                      with probable functional consequences, and thereby an
                      important factor to be considered in root studies or the
                      development of root ideotypes for agriculture.},
      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},
      UT           = {WOS:000474429100013},
      doi          = {10.1007/s11104-018-3764-9},
      url          = {https://juser.fz-juelich.de/record/851721},
}