300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Nicotiana sylvestris [South American Tobacco]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
1
|
|
|
Arithmetic Mean |
55%
|
|
|
Standard Error |
0%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
Wang et al. (2004) |
Well-watered and irrigated plants grown from seed in 8.4-liter pots (one plant per pot) filled with sand in controlled environment growth chambers for a period of nine weeks
|
55%
|
|
|