Percent Photosynthesis (Net CO2 Exchange Rate) Increases for
300, 600 and 900 ppm Increases in the Air's CO2 Concentration:


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

Pinus banksiana [Jack Pine]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
4
 
 
 Arithmetic Mean
34.8%
 
 
 Standard Error
6.2%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Tjoelker et al. (1998)

Seedlings grown for three months in controlled environment chambers at day/night temperatures ranging from 18/12 to 30/24°C (average results)
37%

 

 

Zhang and Dang (2005)

Well-watered and fertilized saplings grown from seed in containers (13.5 cm tall, 11 cm top diameter) in greenhouses for 2 months at a low soil temperatures of 7°C, followed by 2 more two months at a higher soil temperature of 10°C
54%

 

 

Zhang and Dang (2005)

Well-watered and fertilized saplings grown from seed in containers (13.5 cm tall, 11 cm top diameter) in greenhouses for 2 months at a medium soil temperatures of 17°C, followed by 2 more two months at a higher soil temperature of 20°C
26%

 

 

Zhang and Dang (2005)

Well-watered and fertilized saplings grown from seed in containers (13.5 cm tall, 11 cm top diameter) in greenhouses for 2 months at a high soil temperatures of 27°C, followed by 2 more two months at a higher soil temperature of 30°C
22%

 

 

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