300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Amaranthus retroflexus L. [Redroot Amaranth]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
17
|
|
2
|
| Arithmetic Mean |
6.4%
|
|
-5%
|
| Standard Error |
3.3%
|
|
4.9%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Bazzaz et al. (1989) |
pots (7.5-cm x 7.5-cm)
|
28%
|
|
|
|
Bazzaz and Carlson (1984) |
tubs (10.7 liters, 24 plants), water-stressed
|
5%
|
|
2%
|
|
Bazzaz and Carlson (1984) |
tubs (10.7 liters, 24 plants), well-watered
|
-12%
|
|
-12%
|
|
Bazzaz and Garbutt (1988) |
pots (13-cm diameter, 16 plants)
|
0%
|
|
|
|
Dippery et al. (1995) |
controlled growth chambers, leaves
|
-8%
|
|
|
|
Dippery et al. (1995) |
controlled growth chambers, stem
|
3%
|
|
|
|
Dippery et al. (1995) |
controlled growth chambers, roots
|
8%
|
|
|
|
Dippery et al. (1995) |
controlled growth chambers, reproductive biomass
|
-15%
|
|
|
|
Morse and Bazzaz (1994) |
environmental growth chambers, 18 °C
|
3%
|
|
|
|
Morse and Bazzaz (1994) |
environmental growth chambers, 28 °C
|
21%
|
|
|
|
Morse and Bazzaz (1994) |
environmental growth chambers, 38 °C
|
-6%
|
|
|
|
Valerio et al. (2011) |
Well watered and fertilized plants grown from seed to anthesis, four to each7.5-L pot filled with a 1:1 mix of perlite and jiffy mix, within controlled-environment chambers
|
6%
|
|
|
|
Zangerl and Bazzaz (1984) |
pots (7 liters, 36 plants)
|
0%
|
|
|
|
Ziska (2003) |
Plants grown from seed to maturity in the field, distributed among similarly-grown sorghum plants, and enclosed by open-top chambers
|
34%
|
|
|
|
Ziska et al. (1999) |
Plants grown to maturity in glasshouses
|
0%
|
|
|
|
Ziska and Bunce (1997) |
glasshouse
|
24%
|
|
|
|
Ziska and Bunce (1999) |
Plants grown in controlled environment chambers for three weeks
|
18%
|
|
|