Percent Dry Weight (Biomass) Increases for
300, 600 and 900 ppm Increases in the Air's CO2 Concentration:


For a more detailed description of this table, click here.

Trifolium pratense [Purple Clover]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
6
6
 
 Arithmetic Mean
16.3%
14.7%
 
 Standard Error
3.7%
3.7
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Garten Jr. et al. (2008)

Open-top chamber study of plants grown from the seedling stage to maturity together with six other old-field species typical of the area (Oak Ridge, Tennessee, USA) over three consecutive growing seasons
0%

 

 

Juknys et al. (2011)

Aboveground biomass of plants grown from seed for 21 days after germination within controlled-environment chambers at a density of 25 plants per each of three 5-L pots per treatment filled with neutral (pH 6.0-6.5) peat substrate
14%

 

 

Kettunen et al. (2007)

Harvested biomass of plants grown within thermo-controlled greenhouses in sandy-loam-filled mesocosms together with timothy (Phleum pratense) at low soil nitrogen (N) level (5 g N m-2, respectively) for a period of three cuttings
18%

 

 

Kettunen et al. (2007)

Harvested biomass of plants grown within thermo-controlled greenhouses in sandy-loam-filled mesocosms together with timothy (Phleum pratense) at moderate soil nitrogen (N) level (10 g N m-2, respectively) for a period of three cuttings
15%

 

 

Saebo and Mortensen (1995)

Plants grown from seed in 20-cm-deep boxes in field within open-top chambers in cool climate; cv Moldstad
30%

 

 

Schadler et al. (2007)

Well watered and fertilized plants grown from seed for five weeks in pots filled with standard potting soil that were enclosed within tents made from translucid plastic foil that were located in a walk-in growth chamber
21%

 

 

Wu et al. (2009)

Shoot biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at a Cesium level of 0 mg Cs/kg soil
 

13%

 

Wu et al. (2009)

Shoot biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at an added Cesium level of 300 mg Cs/kg soil
 

10%

 

Wu et al. (2009)

Shoot biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at an added Cesium level of 1500 mg Cs/kg soil
 

13%

 

Wu et al. (2009)

Root biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at a Cesium level of 0 mg Cs/kg soil
 

13%

 

Wu et al. (2009)

Root biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at an added Cesium level of 300 mg Cs/kg soil
 

34%

 

Wu et al. (2009)

Root biomass of well watered and fertilized plants grown from seed in pots out-of-doors in open-top chambers for 47 days at an added Cesium level of 1500 mg Cs/kg soil
 

5%

 

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