300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Pteridium revolutum [Hairy Bracken]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
49%
|
|
|
| Standard Error |
7.4%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Zheng et al. (2008) |
Fronds of well watered and fertilized three-week-old plants grown from rhizome cuttings for 20 more days in pots containing 1 kg of local topsoil at 0 mg Cu/kg soil copper (Cu), while exposed to CO2 enrichment from only 08:00 to 11:00 a.m. on days that were sunny
|
31%
|
|
|
|
Zheng et al. (2008) |
Fronds of well watered and fertilized three-week-old plants grown from rhizome cuttings for 20 more days in pots containing 1 kg of local topsoil at 50 mg Cu/kg soil copper (Cu), while exposed to CO2 enrichment from only 08:00 to 11:00 a.m. on days that were sunny
|
59%
|
|
|
|
Zheng et al. (2008) |
Fronds of well watered and fertilized three-week-old plants grown from rhizome cuttings for 20 more days in pots containing 1 kg of local topsoil at 150 mg Cu/kg soil copper (Cu), while exposed to CO2 enrichment from only 08:00 to 11:00 a.m. on days that were sunny
|
57%
|
|
|