300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Hymenocallis littoralis [Spider Lily]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
52%
|
|
|
| Standard Error |
2.8%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Idso et al. (2000) |
Aboveground biomass of plants grown from bulbs out-of-doors in open-top-chambers enclosing adequately watered and fertilized soil for two consecutive two-year growth cycles
|
48%
|
|
|
|
Idso et al. (2000) |
Belowground biomass of plants grown from bulbs out-of-doors in open-top-chambers enclosing adequately watered and fertilized soil for two consecutive two-year growth cycles
|
56%
|
|
|