300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Polygonum cuspidatum [Japanese Knotweed]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
3
|
|
|
Arithmetic Mean |
32.7%
|
|
|
Standard Error |
3.5%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
Onoda et al. (2005) |
Well watered and fertilized plants grown from seed for 20 days and measured in August
|
33%
|
|
|
Onoda et al. (2005) |
Well watered and fertilized plants grown from seed for 20 days and measured in October
|
40%
|
|
|
Onoda et al. (2005) |
Well watered and fertilized plants grown from seed for 100 days and measured in October
|
25%
|
|
|