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


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Echinochloa crus-galli (L.) Palib. [Barnyard Grass]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
8
8
8
 Arithmetic Mean
24.4%
0%
0%
 Standard Error
4.4%
0
0%

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Potvin et al. (1986)

pots
0%

Potvin et al. (1986)

pots
15%

Potvin and Strain (1985)

pots
34%

Sionit and Patterson (1984)

pots (10-cm)
44%

Sionit and Patterson (1985)

pots (2 liters), adequate water
29%

Sionit and Patterson (1985)

pots (2 liters), low water
31%

Zeng et al. (2011)

Photosynthesis of well watered and fertilized plants grown from transplants under standard paddy culture in a FACE study between 30 and 60 days after transplanting in competition with rice (Oryza sativa)
21%

Ziska and Bunce (1997)

glasshouse
21%


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