300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Hedera helix L. [English Ivy]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
1
|
4
|
| Arithmetic Mean |
|
41%
|
57.3%
|
| Standard Error |
|
0
|
20.5%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Li et al. (2000) |
growth chambers, day 2, variegated leaves
|
|
|
97%
|
|
Li et al. (2000) |
growth chambers, day 2, fully green leaves
|
|
|
97%
|
|
Li et al. (2000) |
growth chambers, day 40, variegated leaves
|
|
|
31%
|
|
Li et al. (2000) |
growth chambers, day 40, fully green leaves
|
|
|
4%
|
|
Saxe (1986) |
pots (11-cm, 6 to 40 plants)
|
|
41% |
|