Thus, it would appear that the overall outcome the researchers observed in this study was one in which elevated CO2, acted alone, overpowered the negative effects of a debilitating environmental stress (drought). Consequently, as the air’s CO2 concentration rises in the years and decades to come, the negative impacts of drought on wheat biomass and grain yield should diminish. And that is good news worth celebrating!
Drought is the scourge of crop farmers. In the seventies and early eighties, I saw many of the effects of this devastating weather condition farmers had to endure, often at the cost of bankruptcy and forced sales. Since those days, CO2 has increased substantially. The result of extra CO2 on crops during drought? Read the rest of this good news here.