300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Achillea millefolium L. [Yarrow]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
5
|
|
|
| Arithmetic Mean |
27%
|
|
|
| Standard Error |
15.7%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Crous et al. (2010) |
Photosynthesis of plants growing in the sixth through ninth year of the BioCON FACE Experiment in Central Minnesota (USA) under conditions of "chronically low levels of nitrogen addition in a nutrient-poor prairie grassland"
|
-34%
|
|
|
|
Ellsworth et al. (2004) |
Plants grown under natural conditions for three years in a FACE study
|
76%
|
|
|
|
Lee et al. (2003) |
Plants grown from seed in 2600-cm3 pots for one full growing season in controlled environment chambers under conditions of low and high soil nitrogen; low nitrogen treatment
|
30%
|
|
|
|
Lee et al. (2003) |
Plants grown from seed in 2600-cm3 pots for one full growing season in controlled environment chambers under conditions of low and high soil nitrogen; high nitrogen treatment
|
30%
|
|
|
|
Lee et al. (2011) |
Photosynthesis of upper fully-expanded young to mid-aged leaves of plants grown for 13 years in monoculture in the BioCON FACE experiment at the Cedar Creek Ecosystem Science Reserve in east central Minnesota (USA)
|
33%
|
|
|