Evaluation method for photosynthesis sample, evaluation system for photosynthesis sample, and evaluation program for photosynthesis sample

摘要

An evaluation method for evaluating a state of a photosynthetic sample with a photosynthetic function based on temporal data of a luminescence amount of delayed luminescence emitted from the photosynthetic sample. The state of the photosynthetic sample is based on an evaluation value derived from weighed characteristic values computed from time periods of the temporal data. The measuring step comprises a first excitation step of illuminating a first excitation light onto the photosynthetic sample under a predetermined first illumination condition and a second excitation step of illuminating, after the first excitation step, a second excitation light onto the photosynthetic sample under a second illumination condition that is less in light energy integration value than the first illumination condition. The characteristic values are computed based on temporal data obtained after the second excitation step. A corresponding system for the evaluation as well as an evaluation program are also comprised in the invention.