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.

Daucus carota [Carrot]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
13
13
13
 Arithmetic Mean
64.8%
59%
0%
 Standard Error
27.3%
45.3
0%

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Kyei-Boahen et al. (2003)

Well-watered and fertilized plants grown from seed for 30 days after emergence in a controlled environment room
43%

Kyei-Boahen et al. (2003)

Well-watered and fertilized plants grown from seed for 30 days after emergence in a controlled environment room

45%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence
55%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 1 additional day, bringing the soil moisture potential down to -30 kPa
14%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 2 additional days, bringing the soil moisture potential down to -55 kPa
79%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 3 additional days, bringing the soil moisture potential down to -70 kPa
381%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence

59%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 1 additional day, bringing the soil moisture potential down to -30 kPa

32%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 2 additional days, bringing the soil moisture potential down to -55 kPa

10%

Thiagarajan and Lada (2007)

Photosynthesis of fertilized and well-watered (soil moisture potential = -5 kPa) seedlings grown in 15-cm-diameter pots for 30 days from emergence, after which water was withheld for 3 additional days, bringing the soil moisture potential down to -70 kPa

621%

Thiagarajan et al. (2007)

Photosynthesis of well watered and fertilized 3-week-old plants in 10x15-cm pots of growing media in a controlled-environment chamber maintained at a photosynthetically active radiation (PAR) level of 400 ?mol/m2/sec)
95%

Thiagarajan et al. (2007)

Photosynthesis of well watered and fertilized 3-week-old plants in 10x15-cm pots of growing media in a controlled-environment chamber maintained at a photosynthetically active radiation (PAR) level of 800 ?mol/m2/sec)
95%

Thiagarajan et al. (2007)

Photosynthesis of well watered and fertilized 3-week-old plants in 10x15-cm pots of growing media in a controlled-environment chamber maintained at a photosynthetically active radiation (PAR) level of 1200 ?mol/m2/sec)
80%


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