300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Sorghastrum nutans (L.) Nash [Yellow Indian Grass]
| 300 ppm | 600 ppm | 900 ppm | |
| Number of Results | 5 |  |  | 
| Arithmetic Mean | 194.6% |  |  | 
| Standard Error | 103.8% |  |  | 
| Experimental Conditions | 300 ppm | 600 ppm | 900 ppm | |
| LeCain and Morgan (1998) | Well-watered and fertilized C4 plants grown from seed in 8-liter pots for 39 days in controlled environment chambers | 44% | 
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| McGranahan and Yurkonis (2018) | Aboveground biomass expressed as a percentage of pre-experimental aboveground biomass that was regrown over the treatment period following a cutting at the beginning of a three week CO2 treatment period of well-watered plants grown in controlled environment chambers | 547% | 
 |  | 
| McGranahan and Yurkonis (2018) | Aboveground biomass expressed as a percentage of pre-experimental aboveground biomass that was regrown over the treatment period following a cutting at the beginning of a three week CO2 treatment period of water-limited plants grown in controlled environment chambers | 397% | 
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| Millhollen et al. (2006) | Aboveground biomass of well watered potted plants grown from seed in naturally-lit growth chambers for 31 weeks | 0% | 
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| Reich et al. (2001) | FACE | -15% | 
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