Sunflower yield variation for a range of experimental studies controlling [CO2] variation.
|Reference||[CO2] conditions (ppm)||CO2 experimental design||Shoot biomass variation with eCO2||Yield variation with eCO2|
|Vanaja et al. (2011)||380–700||Open top chambers||+24% (well-watered)
+49% (water stressed)
|Pal et al. (2014)||370–550||Open top chambers (field)||+61% to +68% (2 varieties)||+35% to +46% (2 varieties)|
|Srinivasarao et al. (2016)||380–550–700||Open top chambers (field)||+32% (700 ppm)
+42% (550 ppm)
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