300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Cucurbita pepo L. [Summer Squash]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
1
|
|
| Arithmetic Mean |
|
83%
|
|
| Standard Error |
|
0
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Hartz et al. (1991) |
field, polyethylene tunnel
|
|
83% |
|