300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Abutilon theophrasti L. [Velvet Leaf]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
6
|
6
|
6
|
| Arithmetic Mean |
46.7%
|
9.7%
|
0%
|
| Standard Error |
10.3%
|
8.8
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Hesketh et al. (1984) |
field
|
30%
|
58% |
|
|
Hirose et al. (1996) |
glasshouse
|
31%
|
||
|
Hirose et al. (1997) |
glasshouse
|
32%
|
||
|
Hirose et al. (1997) |
glasshouse, mixed stand with Ambrosia artemisiifolia
|
23%
|
||
|
Luo (1991) |
growth chambers, pots, high relative humidity
|
81%
|
||
|
Luo (1991) |
growth chambers, pots, high relative humidity
|
83%
|