300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Pasture [Lolium perenne L. (Perennial Ryegrass) and Trifolium repens L. (White Clover)]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
24.5%
|
|
|
| Standard Error |
13.1%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Newton et al. (1994) |
growth rooms, herbage accumulated
|
6%
|
|
|
|
Newton et al. (1994) |
growth rooms, root mass
|
43%
|
|
|