300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Taxus baccata L. [English Yew]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
5
|
|
|
Arithmetic Mean |
28%
|
|
|
Standard Error |
5.4%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
Hattenschwiler (2001) |
open-top chambers, 3.4% of full sunlight
|
16%
|
|
|
Hattenschwiler (2001) |
open-top chambers, 1.3% of full sunlight
|
41%
|
|
|
Hattenschwiler and Korner (2000) |
open-top chambers, 0.8-2.1% of full sun
|
40%
|
|
|
Hattenschwiler and Korner (2000) |
open-top chambers, 2.6-4.8% of full sun
|
12%
|
|
|
Save et al. (2007) |
Well watered and fertilized plants grown for seven months in greenhouse compartments in 3-L plastic pots filled with a 2:1 mixture of peat and perlite
|
31%
|
|
|