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
|
3
|
| Arithmetic Mean |
72%
|
107%
|
32%
|
| Standard Error |
0%
|
0
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Mosaleeyanon et al. (2005) |
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (100 ?mol m-2 s-1)
|
|
|
32%
|
|
Mosaleeyanon et al. (2005) |
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (300 ?mol m-2 s-1)
|
|
|
32%
|
|
Mosaleeyanon et al. (2005) |
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (600 ?mol m-2 s-1)
|
|
|
32%
|
|
Save et al. (2007) |
Well watered and fertilized plants grown for seven months in greenhouse compartments in 3-L plastic pots filled with a 2:1 mixture of peat and perlite
|
72%
|
|
|
|
Zobayed and Saxena (2004) |
Plants grown from small shoots for 42 days in controlled environment chambers and a glasshouse; cv. 'New Stem'
|
|
107% |
|