300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Helianthus annuus [Sunflower]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
21
|
1
|
|
| Arithmetic Mean |
52.9%
|
72%
|
|
| Standard Error |
6%
|
0
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Beerling and Woodward (1995) |
controlled environment growth cabinets
|
27%
|
|
|
|
Breen et al. (1986) |
field
|
61%
|
|
|
|
De la Mata et al. (2012) |
Photosynthesis of primary leaves, aged 16 days (D), of well watered and fertilized plants grown from seed in controlled environment chambers
|
94%
|
|
|
|
De la Mata et al. (2012) |
Photosynthesis of primary leaves, aged 22 days (D), of well watered and fertilized plants grown from seed in controlled environment chambers
|
89%
|
|
|
|
De la Mata et al. (2012) |
Photosynthesis of primary leaves, aged 32 days (D), of well watered and fertilized plants grown from seed in controlled environment chambers
|
62%
|
|
|
|
De la Mata et al. (2012) |
Photosynthesis of primary leaves, aged 42 days (D), of well watered and fertilized plants grown from seed in controlled environment chambers
|
114%
|
|
|
|
Hesketh et al. (1984) |
field
|
32%
|
72% |
|
|
Hunt et al. (1991) |
pots (1 liter)
|
83%
|
|
|
|
Huxman et al. (1999) |
glasshouse
|
21%
|
|
|
|
Larios et al. (2004) |
Plants were grown from seed in a growth chamber for 19 days, after which they were transferred to a set of controlled-environment cabinets maintained at a variety of atmospheric CO2 concentrations, where after 72 hours of darkness they were allowed to experience ideal environmental conditions in the light for six hours, during which time leaf net photosynthesis rates were measured
|
84%
|
|
|
|
Luo et al. (2000) |
controlled environment chambers
|
53%
|
|
|
|
Mott and O'Leary (1984) |
pots
|
50%
|
|
|
|
Pal et al. (2014) |
Photosynthesis of the uppermost fully developed leaves of the DRSH 1 variety of well-watered and adequately-fertilized plants grown from seed out-of-doors on a sandy loam soil within open-top chambers
|
70%
|
|
|
|
Pal et al. (2014) |
Photosynthesis of the uppermost fully developed leaves of the DRSF 113 variety of well-watered and adequately-fertilized plants grown from seed out-of-doors on a sandy loam soil within open-top chambers
|
57%
|
|
|
|
Pandurangam et al. (2006) |
Plant cultivar MSFH 17 grown from seed to maturity under normal field conditions within open-top chambers; measurements made at anthesis stage
|
35%
|
|
|
|
Pandurangam et al. (2006) |
Plant cultivar MRSF 1754 grown from seed to maturity under normal field conditions within open-top chambers; measurements made at anthesis stage
|
19%
|
|
|
|
Sobrado and Turner (1986) |
pots, water-stressed
|
25%
|
|
|
|
Sobrado and Turner (1986) |
pots, well-watered
|
20%
|
|
|
|
Vanaja et al. (2011) |
Photosynthesis of plants grown from seed to maturity in open-top chambers out-of-doors one to each 5-L pot filled with ~6.5 kg of red soil maintained at 80% (well-watered, WW) of soil water content at field capacity
|
30%
|
|
|
|
Vanaja et al. (2011) |
Photosynthesis of plants grown from seed to maturity in open-top chambers out-of-doors one to each 5-L pot filled with ~6.5 kg of red soil maintained at 50% (drought-stressed, DS) of soil water content at field capacity
|
56%
|
|
|
|
Wang et al. (2008) |
Photosynthesis of well watered and fertilized plants grown from seed at their optimal daytime temperature for about six weeks in growth chambers within 5-L pots filled with a 1:1:1 mixture of top-soil, sand and perlite
|
29%
|
|
|