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@ARTICLE{Postma:888606,
      author       = {Postma, Johannes A. and Hecht, Vera L. and Hikosaka, Kouki
                      and Nord, Eric A. and Pons, Thijs L. and Poorter, Hendrik},
      title        = {{D}ividing the pie: {A} quantitative review on plant
                      density responses},
      journal      = {Plant, cell $\&$ environment},
      volume       = {44},
      number       = {4},
      issn         = {1365-3040},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2020-05062},
      pages        = {1072-1094},
      year         = {2021},
      abstract     = {Plant population density is an important variable in
                      agronomy and forestry and offers an experimental way to
                      better understand plant-plant competition. We made a
                      meta-analysis of responses of even-aged mono-specific stands
                      to population density, by quantifying for 3 stand and 33
                      individual plant variables in 334 experiments how much both
                      plant biomass and phenotypic traits change with a doubling
                      in density. Increasing density increases standing crop per
                      area, but decreases the mean size of its individuals, mostly
                      through reduced tillering and branching. Among the
                      phenotypic traits, stem diameter is negatively affected, but
                      plant height remains remarkably similar, partly due to an
                      increased stem length:mass ratio, partly by increased
                      allocation to stems. The reduction in biomass is caused by a
                      lower photosynthetic rate, mainly due to shading of part of
                      the foliage. Total seed mass per plant is also strongly
                      reduced, marginally by lower mass per seed, but mainly
                      because of lower seed numbers. Plants generally have fewer
                      shoot-born roots, but their overall rooting depth seems
                      little affected. The phenotypic plasticity responses to high
                      densities correlate strongly with those to low-light, and
                      less with those to low nutrients, suggesting that at high
                      density, shading affects plants more than nutrient
                      depletion.Keywords: plant population density, plant
                      population dynamics, intra-specific competition, nutrient
                      availability, shading, meta-analysis},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33280135},
      UT           = {WOS:000603321100001},
      doi          = {10.1111/pce.13968},
      url          = {https://juser.fz-juelich.de/record/888606},
}