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.

Hypericum perforatum L. (St. John's Wort)


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
12
1
3
 Arithmetic Mean
39.7%
107%
32%
 Standard Error
10.2%
0
0%

Individual Experiment Results

Journal References
Experimental Conditions
300 ppm
600 ppm
900 ppm

Mosaleeyanon et al. (2005)
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (100 ?mol m-2 s-1)
 

 
32%

Mosaleeyanon et al. (2005)
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (300 ?mol m-2 s-1)
 

 
32%

Mosaleeyanon et al. (2005)
Well watered and fertilized seedlings grown for 45 days in pots in controlled environment chambers at low light intensity (600 ?mol m-2 s-1)
 

 
32%

Save et al. (2007)
Well watered and fertilized plants grown for seven months in greenhouse compartments in 3-L plastic pots filled with a 2:1 mixture of peat and perlite
72%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under ambient temperature and no application of vermicompost
41%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under ambient temperature and with 100 g per pot application of vermicompost
108%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under elevated temperature (2.5-3.0°C above ambient, achieved using infrared heaters) and no application of vermicompost
-17%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under elevated temperature (2.5-3.0°C above ambient, achieved using infrared heaters) and with 100 g per pot application of vermicompost
39%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under ambient temperature and no application of vermicompost
42%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under ambient temperature and with 100 g per pot application of vermicompost
25%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage in 2016 of plants grown in pots in the field under elevated temperature (2.5-3.0°C above ambient, achieved using infrared heaters) and no application of vermicompost
9%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage of plants grown in pots in the field under ambient temperature and with 100 g per pot application of vermicompost; average of two growing seasons (2016 and 2017)
57%

 
 

Sharma et al. (2019)
Total dry biomass at seed maturity of plants grown in pots in the field under ambient temperature and with 100 g per pot application of vermicompost; average of two growing seasons (2016 and 2017)
88%

 
 

Sharma et al. (2019)
Total dry biomass at the 100% flowering stage of plants grown in pots in the field under elevated temperature (2.5-3.0°C above ambient, achieved using infrared heaters); average of two growing seasons (2016 and 2017)
13%

 
 

Sharma et al. (2019)
Total dry biomass at seed maturity of plants grown in pots in the field under elevated temperature (2.5-3.0°C above ambient, achieved using infrared heaters); average of two growing seasons (2016 and 2017)
-1%

 
 

Zobayed and Saxena (2004)
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107%
 

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