300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Helainthus petiolaris Nutt. [Prairie Sunflower]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
2
|
2
|
| Arithmetic Mean |
20%
|
0%
|
0%
|
| Standard Error |
0%
|
0
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Sobrado and Turner (1986) |
pots, water-stressed
|
20%
|
||
|
Sobrado and Turner (1986) |
pots, well-stressed
|
20%
|