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@INPROCEEDINGS{Koller:905101,
      author       = {Koller, Robert and Huber, Gregor and Fischbach, Andreas and
                      Sorg, Elisa and Winkler, Jana Barbro and Schnitzler,
                      Jörg-Peter},
      title        = {{P}henotypic responses to drought stress in wheat on
                      genotype, plant and single seed level},
      reportid     = {FZJ-2022-00393},
      year         = {2021},
      abstract     = {Plant phenotyping reveals relationships between measured
                      plant parameters and environmental conditions, thus enabling
                      the study of plant genotype-environment interactions. In our
                      approach we aim to better understand how drought stress
                      during the vegetative phase affects growth and physiological
                      plant responses and thus feeds back on seed traits at
                      harvest. In a greenhouse experiment, nine wheat cultivars
                      selected from the ‘10+ Wheat Genomes Project’ were
                      scanned twice a week for approximately 5 months using the 3D
                      phenotyping system 'Plant Eye'. After harvest, biometric
                      seed traits, such as mass and volume of individual seeds,
                      were phenotyped using the ‘phenoSeeder’. Drought stress
                      resulted in a mean plant biomass reduction by $31\%,$ but
                      also induced genotype-specific responses. The CDC Landmark,
                      CDC Stanley, Norin and Weebil cultivars were generally most
                      sensitive to drought stress, while cv Arina, Cadenza,
                      Chinese Spring, Jagger and Mace showed higher tolerance.
                      Seed characteristics showed high variability among cultivars
                      and plant individuals. Mean values of seed mass ranged from
                      43 mg (Chinese Spring) to 70 mg (Weebil). Generally,
                      intra-genotype distributions of seed volume and mass were
                      rather wide, with at least a factor two between the values
                      for the smallest and biggest seeds. The drought treatment
                      reduced seed mass and volume only in the cv Chinese Spring
                      and Weebil. Moreover, we did not find any effect of drought
                      stress on seed density. Thus, the drought stress effect on
                      seed traits was different from the response seen in plant
                      biomass and yield. Overall, the applied phenotyping tools
                      allowed for a non-invasive quantification of plant and seed
                      responses on genotype, individual plant and single seed
                      level. We believe that the combination of the different
                      phenotyping approaches, seed classification and seed
                      selection will help to more efficiently identify the genetic
                      basis of complex traits such as drought resistance.},
      month         = {Aug},
      date          = {2021-08-09},
      organization  = {13th Triennial Meeting of the
                       International Society for Seed Science,
                       online (UK), 9 Aug 2021 - 13 Aug 2021},
      subtyp        = {After Call},
      cin          = {IBG-2},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2171 - Biological and environmental resources for
                      sustainable use (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2171},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/905101},
}