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.

Populus cathayanna [Poplar]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
9
 
 
 Arithmetic Mean
24.6%
 
 
 Standard Error
4.4%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Qiao et al. (2007)

Photosynthesis of individual leaves of natural plant communities that were dug out and placed in wooden boxes and transferred to growth chambers, where they grew for four months, after which they were equilibrated for 30 minutes to different CO2 concentrations at high light intensity
45%

 

 

Zhao et al. (2012)

Photosynthesis of developing leaves of well watered and fertilized 30-cm-tall 2-month-old male (M) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at ambient temperature (TA)
24%

 

 

Zhao et al. (2012)

Photosynthesis of developing leaves of well watered and fertilized 30-cm-tall 2-month-old male (M) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at elevated temperature (TE = TA +2C)
18%

 

 

Zhao et al. (2012)

Photosynthesis of developing leaves of well watered and fertilized 30-cm-tall 2-month-old female (F) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at ambient temperature (TA)
46%

 

 

Zhao et al. (2012)

Photosynthesis of developing leaves of well watered and fertilized 30-cm-tall 2-month-old female (F) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at elevated temperature (TE = TA +2C)
28%

 

 

Zhao et al. (2012)

Photosynthesis of expanded leaves of well watered and fertilized 30-cm-tall 2-month-old male (M) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at ambient temperature (TA)
24%

 

 

Zhao et al. (2012)

Photosynthesis of expanded leaves of well watered and fertilized 30-cm-tall 2-month-old male (M) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at elevated temperature (TE = TA +2C)
22%

 

 

Zhao et al. (2012)

Photosynthesis of expanded leaves of well watered and fertilized 30-cm-tall 2-month-old female (F) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at ambient temperature (TA)
7%

 

 

Zhao et al. (2012)

Photosynthesis of expanded leaves of well watered and fertilized 30-cm-tall 2-month-old female (F) plantlets obtained from cuttings and grown for four additional months in plastic pots filled with 9 liters of sieved surface sandy soil within controlled-environment chambers out-of-doors in Southwest China at elevated temperature (TE = TA +2°C)
7%

 

 

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