300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Larix laricina [Tamarack]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
1
|
|
|
| Arithmetic Mean |
56%
|
|
|
| Standard Error |
0%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Tjoelker et al. (1998) |
Average results of seedlings grown for three months in controlled environment chambers at day/night temperatures ranging from 21/15 to 30/24?C
|
56%
|
|
|