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.

Phleum pratense [Timothy]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
19
 
 
 Arithmetic Mean
13.9%
 
 
 Standard Error
3.4%
 
 

Individual Experiement Results

Journal References
Experimental Conditions
300 ppm
600 ppm
900 ppm

Kettunen et al. (2005)
Plants grown from seed in peat soil mesocosms in greenhouses under 2 g N m-2 of added fertilizer; total biomass (sum of 4 aboveground harvests plus final root mass)
10%

 
 

Kettunen et al. (2005)
Plants grown from seed in peat soil mesocosms in greenhouses under 6 g N m-2 of added fertilizer; total biomass (sum of 4 aboveground harvests plus final root mass)
19%

 
 

Kettunen et al. (2005)
Plants grown from seed in peat soil mesocosms in greenhouses under 10 g N m-2 of added fertilizer; total biomass (sum of 4 aboveground harvests plus final root mass)
13%

 
 

Kettunen et al. (2006)
Total biomass of appropriately fertilized plants grown for 4 to 5 months from seed sown in peat soil in a number of mesocosms distributed within a growth chamber under equal water application
14%

 
 

Kettunen et al. (2006)
Total biomass of appropriately fertilized plants grown for 4 to 5 months from seed sown in peat soil in a number of mesocosms distributed within a growth chamber under equal soil moisture maintenance
14%

 
 

Kettunen et al. (2006)
Total biomass of appropriately fertilized plants grown for 4 to 5 months from seed sown in sand soil in a number of mesocosms distributed within a growth chamber under equal water application
15%

 
 

Kettunen et al. (2006)
Total biomass of appropriately fertilized plants grown for 4 to 5 months from seed sown in sand soil in a number of mesocosms distributed within a growth chamber under equal soil moisture maintenance
21%

 
 

Kettunen et al. (2007a)
Harvested biomass of plants grown within thermo-controlled greenhouses in sandy-loam-filled mesocosms together with red clover (Trifolium pratense) at low soil nitrogen (N) level (5 g N m-2, respectively) for a period of three cuttings
18%

 
 

Kettunen et al. (2007a)
Harvested biomass of plants grown within thermo-controlled greenhouses in sandy-loam-filled mesocosms together with red clover (Trifolium pratense) at moderate soil nitrogen (N) level (10 g N m-2, respectively) for a period of three cuttings
22%

 
 

Kettunen et al. (2007b)
Aboveground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at low (half-standard) soil nitrogen supply
7%

 
 

Kettunen et al. (2007b)
Aboveground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at moderate (standard)soil nitrogen supply
12%

 
 

Kettunen et al. (2007b)
Aboveground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at high (1.5 times standard) soil nitrogen supply
7%

 
 

Kettunen et al. (2007b)
Belowground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at low (half-standard) soil nitrogen supply
23%

 
 

Kettunen et al. (2007b)
Belowground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at moderate (standard)soil nitrogen supply
22%

 
 

Kettunen et al. (2007b)
Belowground biomass of plants grown from seed in sandy-soil-filled mesocosms located within greenhouses for a period of 3.5 months at high (1.5 times standard) soil nitrogen supply
34%

 
 

Saebo and Mortensen (1995)
Plants grown from seed in 20-cm-deep boxes in field within open-top chambers in cool climate; cv Bodin
-25%

 
 

Saebo and Mortensen (1995)
Plants grown from seed in 20-cm-deep boxes in field within open-top chambers in cool climate; cv Grindstad
-18%

 
 

Saebo and Mortensen (1995)
Plants grown from seed in 20-cm-deep boxes in field within open-top chambers in cool climate; cv Forus
12%

 
 

Wolf et al. (2010)
Leaf biomass of well watered and fertilized plants grown from seed for sixty days in pots placed within growth chambers
44%

 
 

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