300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Lycopersicon chmielewskii Rick [Tomato]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
2
|
|
| Arithmetic Mean |
|
46.5%
|
|
| Standard Error |
|
7.4
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Yelle et al. (1989) |
hydroponics
|
|
36% |
|
|
Yelle et al. (1990) |
hydroponics
|
|
57% |
|