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@ARTICLE{Soares:903597,
      author       = {Soares, José C. and Zimmermann, Lars and Zendonadi dos
                      Santos, Nicolas and Muller, Onno and Pintado, Manuela and
                      Vasconcelos, Marta W.},
      title        = {{G}enotypic variation in the response of soybean to
                      elevated {CO} 2},
      journal      = {Plant-environment interactions},
      volume       = {2},
      number       = {6},
      issn         = {2575-6265},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2021-05251},
      pages        = {263 - 276},
      year         = {2021},
      abstract     = {The impact of elevated CO2 (eCO2) on soybean productivity
                      is essential to the global food supply because it is the
                      world's leading source of vegetable proteins. This study
                      aimed to understand the yield responses and nutritional
                      impact under free-air CO2 enrichment (FACE) conditions of
                      soybean genotypes. Here we report that grain yield increased
                      by $46.9\%$ and no reduction in harvest index was observed
                      among soybean genotypes. Elevated CO2 improved the
                      photosynthetic carbon assimilation rate, leaf area, plant
                      height, and aboveground biomass at vegetative and pod
                      filling stages. Besides the positive effects on yield
                      parameters, eCO2 differentially affected the overall grain
                      quality. The levels of calcium (Ca), phosphorous (P),
                      potassium (K), magnesium (Mg), manganese (Mn), iron (Fe),
                      boron (B), and zinc (Zn) grain minerals decreased by 22.9,
                      9.0, 4.9, 10.1, 21.3, 28.1, 18.5, and $25.9\%$ under eCO2
                      conditions, respectively. Soluble sugars and starch
                      increased by 9.1 and $16.0\%,$ respectively, phytic acid
                      accumulation increased by $8.1\%,$ but grain protein content
                      significantly decreased by $5.6\%$ across soybean genotypes.
                      Furthermore, the antioxidant activity decreased by $36.9\%,$
                      but the total phenolic content was not affected by eCO2
                      conditions. Genotypes, such as Winsconsin Black,
                      Primorskaja, and L-117, were considered the most responsive
                      to eCO2 in terms of yield enhancement and less affected in
                      the nutritional quality. Our results confirm the existence
                      of genetic variability in soybean responses to eCO2, and
                      differences between genotypes in yield improvement and
                      decreased sensitivity to eCO2 in terms of grain quality loss
                      could be included in future soybean selection to enable
                      adaptation to climate change.},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2171 - Biological and environmental resources for
                      sustainable use (POF4-217) / EPPN2020 - European Plant
                      Phenotyping Network 2020 (731013)},
      pid          = {G:(DE-HGF)POF4-2171 / G:(EU-Grant)731013},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1002/pei3.10065},
      url          = {https://juser.fz-juelich.de/record/903597},
}