300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Digitaria sanguinalis (L.) Scop. [Hairy Crabgrass]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
75.3%
|
|
|
| Standard Error |
32.7%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Sionit and Patterson (1984) |
pots (10-cm)
|
23%
|
|
|
|
Sionit and Patterson (1985) |
pots (2 liters), adequate water
|
49%
|
|
|
|
Sionit and Patterson (1985) |
pots (2 liters), low water
|
154%
|
|
|