300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Polygonum sachalinense [Giant Knotweed]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
5
|
|
|
| Arithmetic Mean |
46.6%
|
|
|
| Standard Error |
8.3%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Onoda et al. (2007) |
Photosynthesis of native plants growing close to (CO2-enriched air) and further away from (ambient air) two natural CO2 springs in Japan (Ryuzin-numa)
|
46%
|
|
|
|
Onoda et al. (2007) |
Photosynthesis of native plants growing close to (CO2-enriched air) and further away from (ambient air) two natural CO2 springs in Japan (Yuno-kawa)
|
40%
|
|
|
|
Onoda et al. (2009) |
Photosynthesis of attached fully-expanded young leaves of well watered and fertilized plants grown for 85 days in 1.5-L pots filled with washed river sand and located within open-top chambers
|
29%
|
|
|
|
Osada et al. (2010) |
Photosynthesis of plants having grown at various distances from natural CO2-emitting springs throughout their entire lives (and descended from plants that had lived there for hundreds of years), measured at times of daily maximum relative photon flux density (RPFD)
|
36%
|
|
|
|
Osada et al. (2010) |
Photosynthesis of plants having grown at various distances from natural CO2-emitting springs throughout their entire lives (and descended from plants that had lived there for hundreds of years), measured at times of daily minimum relative photon flux density (RPFD)
|
82%
|
|
|