300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Vallisneria tortifolia [Corkscrew Vallisneria]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
2
|
2
|
| Arithmetic Mean |
14%
|
28.5%
|
42.5%
|
| Standard Error |
5.7%
|
11
|
16.6%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 18.2?C (low T)
|
6%
|
|
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 24.5?C (high T)
|
22%
|
|
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 18.2?C (low T)
|
|
13% |
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 24.5?C (high T)
|
|
44% |
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 18.2?C (low T)
|
|
|
19%
|
|
Idso (1997) |
Adult plants trimmed to have 3 cm of blade length and 3 cm of root length planted in common aquarium gravel and grown for several weeks in non-fertilized tap water within 10- and 29-gallon aquariums (Poor Man's Biospheres) with semi-sealed airspaces above them maintained at a temperature of 24.5?C (high T)
|
|
|
66%
|