300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Hypericum perforatum L. [St. John's Wort]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
1
|
1
|
1
|
| Arithmetic Mean |
0%
|
116%
|
0%
|
| Standard Error |
0%
|
0
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Zobayed and Saxena (2004) |
Plants grown from small shoots for 42 days in controlled environment chambers and a glasshouse; cv New Stem
|
116% |