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.

Asclepias syriaca L. [Common Milkweed]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
3
 
 
 Arithmetic Mean
31%
 
 
 Standard Error
15.5%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Hughes and Bazzaz (1997)

glasshouse modules
69%

 

 

Vannette and Hunter (2011)

Above-ground growth of well-watered initially four-week-old plants grown from seed in individual 1-L pots filled with a 2:1 mix of potting soil and local sandy soil kept in open-top chambers out-of-doors for nine more weeks in northern Michigan (USA)
13%

 

 

Vannette and Hunter (2011)

Below-ground growth of well-watered initially four-week-old plants grown from seed in individual 1-L pots filled with a 2:1 mix of potting soil and local sandy soil kept in open-top chambers out-of-doors for nine more weeks in northern Michigan (USA)
11%

 

 

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