300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Juglans nigra [Black Walnut]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
1
|
1
|
|
| Arithmetic Mean |
24%
|
55%
|
|
| Standard Error |
0%
|
0
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Delaire et al. (2005) |
One-year-old walnut trees with roots bathed in a hydroponic recirculating nutrient solution
|
24%
|
55% |
|