auftragsforschung, pflanzenphysiologie, stressphysiologie, drought stress, Trockenstress, PEA, k-step, 300µm, performance index, fv/Fm, contract research, phenotyping, high-troughput, energy crop, food crop, contract research, worldwide, banana, salix, populus, douglas fir, oak, shelf life, postharvest, monitoring, biomonitoring, fluorescence