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.

Liriodendron tulipifera L. [Yellow Poplar]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
13
 
 
 Arithmetic Mean
64.4%
 
 
 Standard Error
12.4%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Gunderson et al. (1993)

open-top chambers, 1990
149%

 

 

Gunderson et al. (1993)

open-top chambers, 1991
167%

 

 

Loats and Rebbeck (1999)

growth chambers, ambient ozone
45%

 

 

Loats and Rebbeck (1999)

growth chambers, twice-ambient ozone
41%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 86, unfertilized
37%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 86, fertilized
64%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 119, unfertilized
32%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 119, fertilized
16%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 166, unfertilized
14%

 

 

Norby and O'Neill (1991)

pots (3.5 liter), day 166, fertilized
89%

 

 

Norby et al. (1992)

field, open-top chambers
66%

 

 

Williams et al. (1986)

pots (8.2 liter)
54%

 

 

Wullschleger et al. (1992)

field, open-top chambers
63%

 

 

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