title: Temperature dependence of the delayed fluorescence from wheat leaves treated with 3-(3,4-dichlorophenyl)-1-1,-dimethylurea.
abstract: Light saturation curves of the delayed fluorescence of wheat leaves treated with 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) were measured at different temperatures. Calculated activation energies for a half-saturation actinic light intensity and saturated delayed fluorescence emission were 0.89 and 0.32 eV, respectively. On the basis of the kinetic model energy levels of Photosystem II reaction center components were estimated.
mesh_terms: D004237:Diuron / Q000494:pharmacology*; D005453:Fluorescence; D007700:Kinetics; D010788:Photosynthesis / Q000187:drug effects*; D013696:Temperature; D014908:Triticum
chemical_list: D004237:Diuron