300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Ambrosia cordifolia (Gray) Payne [Tuscon Burr Ragweed]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
45.7%
|
|
|
| Standard Error |
3.8%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Mott and Michaelson (1991) |
pots, low light
|
53%
|
|
|
|
Mott and Michaelson (1991) |
pots, moderate light
|
47%
|
|
|
|
Mott and Michaelson (1991) |
pots, high light
|
37%
|
|
|