Variation in the leaf δ¹³C is correlated with salinity tolerance under elevated CO₂ concentration
Increasing atmospheric CO₂ concentration is expected to impact agricultural systems through a direct effect on leaf gas exchange and also due to effects on the global availability of good-quality water as a result of climate warming. Thus, the planning of land use for agriculture requires new tools to identify the capability of current cultivars to adapt to growth restrictions under new ambient conditions.