300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Polygonum hydropiper L. [Marshpepper Knotweed]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
40.5%
|
|
|
| Standard Error |
15.9%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Farnsworth and Bazzaz (1995) |
glasshouse, vegetative mass
|
63%
|
|
|
|
Farnsworth and Bazzaz (1995) |
glasshouse, fruit weight
|
18%
|
|
|