300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Allium cepa L. [Onion]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
1
|
|
| Arithmetic Mean |
|
22%
|
|
| Standard Error |
|
0
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Jasoni et al. (2004) |
Plants grown in controlled environment chambers; cv. 'Purplette'
|
|
22% |
|