Lifetime water‐consumption and performance parameters in 12 selected ecotypes. (a) Relationship between days to flowering and measured plant water use (mPWU), (b) relationship between vegetative biomass and mPWU, (c) relationship between calculated lifetime plant water use (cPWU) and mPWU within the same experiment, and (d) relationship between cPWU and mPWU between two independent experiments: long‐day, moderate‐drought (LD, MD), and short‐day, well‐watered (SD, WW). The lines represent the equation of the linear regression model, and (e) relationship between the breakpoint in dehydration response and vegetative water use (VWU) plasticity. The P‐value of the slope parameter and adjusted r
2 value associated with the linear model are provided for each association