Plant Photosynthesis (Net CO2 Exchange Rate) Responses
to Atmospheric CO2 Enrichment

Z
   300 ppm   600 ppm   900 ppm 
Plant Name  Number of
Studies 		  Arithmetic
Mean 		  Standard
Error 		  Number of
Studies 		  Arithmetic
Mean 		  Standard
Error 		  Number of
Studies 		  Arithmetic
Mean 		  Standard
Error 
Zea mays L. [Corn] 2326.1%10.6%        
Zingiber officinale [Ginger] 241.5%5.3%        

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