Percent Photosynthesis (Net CO2 Exchange Rate) Increases for
300, 600 and 900 ppm Increases in the Air's CO2 Concentration:

For a more detailed description of this table, click here.

Agropyron repens L. [Couch Grass]

300 ppm
600 ppm
900 ppm
 Number of Results
 Arithmetic Mean
 Standard Error

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Crous et al. (2010)

Photosynthesis of plants growing in the sixth through ninth year of the BioCON FACE Experiment in Central Minnesota (USA) under conditions of "chronically low levels of nitrogen addition in a nutrient-poor prairie grassland"



Ellsworth et al. (2004)

Plants grown under natural conditions for three years in a FACE study



Lee et al. (2011)

Photosynthesis of upper fully-expanded young to mid-aged leaves of plants grown for 13 years in monoculture in the BioCON FACE experiment at the Cedar Creek Ecosystem Science Reserve in east central Minnesota (USA)



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