300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Acacia minuta ssp. minuta [Coastal Scrub Wattle]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
110%
|
|
|
| Standard Error |
22.6%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Polley et al. (1997) |
Plants grown from seed in 380-liter containers together with equal numbers of the C3 Texas winter grass (Stipa leucotricha Trin. & Rupr) and the C4 little bluestem grass (Schizachyrium scoparium (Michx.) Nash) in greenhouse bays for a period of 13 months; aboveground biomass
|
78%
|
|
|
|
Polley et al. (1997) |
Plants grown from seed in 380-liter containers together with equal numbers of the C3 Texas winter grass (Stipa leucotricha Trin. & Rupr) and the C4 little bluestem grass (Schizachyrium scoparium (Michx.) Nash) in greenhouse bays for a period of 13 months; belowground biomass
|
142%
|
|
|