300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Apium graveolens L. [Celery]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
|
1
|
|
Arithmetic Mean |
|
29%
|
|
Standard Error |
|
0
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
Tremblay et al. (1987) |
pots (0.0085 liter)
|
|
29% |
|