300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Alnus rubra Bong. [Red Alder]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
8
|
|
|
Arithmetic Mean |
73.9%
|
|
|
Standard Error |
10.6%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
Arnone and Gordon (1990) |
shaded greenhouse, 0 mg l-1 nitrogen
|
122%
|
|
|
Arnone and Gordon (1990) |
shaded greenhouse, 20 mg l-1 nitrogen
|
92%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 1, periodic watering
|
59%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 1, well-watered
|
28%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 2, periodic watering, measured 1 day after watering
|
111%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 2, well-watered, measured 1 day after watering
|
54%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 2, periodic watering, measured 6 days after watering
|
71%
|
|
|
Hibbs et al. (1995) |
growth chamber, harvest 2, well-watering, measured 6 days after watering
|
54%
|
|
|