300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Spergula arvensis L. [Corn Spurrey]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
-20%
|
|
|
| Standard Error |
7.8%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Leishman et al. (1999) |
glasshouse, sun
|
-9%
|
|
|
|
Leishman et al. (1999) |
glasshouse, shade
|
-31%
|
|
|