300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Nephrolepis exaltata (L.) Schott [Boston Swordfern]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
2
|
1
|
| Arithmetic Mean |
|
29%
|
7%
|
| Standard Error |
|
3.5
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Mortensen (1984) |
growth chambers
|
|
24% |
7%
|
|
Mortensen (1985) |
pots (11-cm)
|
|
34% |
|