Maximum photosynthetic rates under strong illumination and high CO2 concentrations

Range 200-500 µmol reduced CO2/(mg chlorophyll×hour)
Organism Spinach Spinacia oleracea
Reference Karl-Josef Dietz and Ulrich Heber, Rate-limiting factors in leaf photosynthesis: I. Carbon fluxes in the Calvin cycle , Biochimica et Biophysica Acta, 767 (1984) 432-443 doi:10.1016/0005-2728(84)90041-0
Method Spinach was grown in a greenhouse with additional light in an 10 h light/14 h dark period. Leaves were harvested after more than 6 h illumination. Plants were kept in the dark for 60 minutes, and photosynthesis was induced by illumination in air
Comments Very high rates were obtained with field-grown and well-fertilized material in the spring (May) and in the fall (September and October).
Entered by Uri M
ID 103396