ABSTRACT The simultaneous effect of elevated CO2 concentration and drought on trees is still under investigation in the Amazon. We evaluated the effect of CO2 levels (400 and 800 ppm) and water regimes (50% and 100% soil field capacity) on photosynthetic traits. chlorophyll fluorescence. and total biomass accumulation in Ceiba pentandra. https://www.ealisboa.com/limited-value-AXYS-Valhalla-Pen-must-buy/