300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Picea koraiensis Nakai [Spruce]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
1
|
|
|
| Arithmetic Mean |
73%
|
|
|
| Standard Error |
0%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Mao et al. (2005) |
Well watered and fertilized two-year-old seedlings grown for three summer months (June, July, August) in forest soil in 5.5-liter pots within controlled environment chambers
|
73%
|
|
|