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.

Lactuca sativa L. [Garden Lettuce]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
8
4
1
 Arithmetic Mean
32.6%
56.3%
115%
 Standard Error
8.1%
8
0%

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Besford and Hand (1989)

containers
 

29%

 

Kitaya et al. (1998)

growth chambers, 16-hour photoperiod
27%

 

 

Kitaya et al. (1998)

growth chambers, 24-hour photoperiod
10%

 

 

Knecht and O Leary (1983)

pots (1 liter), growth chambers
 

 

115%

Knight and Mitchell (1988)

hydroponics
 

69%

 

Mortensen (1984)

growth chambers
 

61%

 

Mortensen (1985)

pots (11-cm)
 

66%

 

Perez-Lopez et al. (2013)

Well-watered and fertilized lettuce plants of the Blonde of Paris Batavia (PB) variety - grown for 39 days after sowing in a light environment of 400 PAR
55%

 

 

Perez-Lopez et al. (2013)

Well-watered and fertilized lettuce plants of the oak leaf (OL) variety - grown for 39 days after sowing in a light environment of 400 PAR
77%

 

 

Perez-Lopez et al. (2013)

Well-watered and fertilized lettuce plants of the Blonde of Paris Batavia (PB) variety - grown for 39 days after sowing in a light environment of 700 PAR
25%

 

 

Perez-Lopez et al. (2013)

Well-watered and fertilized lettuce plants of the oak leaf (OL) variety - grown for 39 days after sowing in a light environment of 700 PAR
0%

 

 

Sgherri et al. (2017)

Yield at harvest (39 days after sowing) of well-watered and fertilized plants grown in controlled environment chambers; cv Blonde of Paris Batavia
29%

 

 

Sgherri et al. (2017)

Yield at harvest (39 days after sowing) of well-watered and fertilized plants grown in controlled environment chambers; cv Oak Leaf
38%

 

 

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