Salicylic acid (SA) is an important plant regulator reported as a mitigator of water deficit in
plants, however without a recommendation for use in field conditions. Thus, this research
aims to validate the use of SA under field conditions in regions with low water availability.
For that, we evaluated CO2 assimilation (A), stomatal conductance (gs), transpiration (E),
water use efficiency (WUE), and carboxylation efficiency (A/Ci) at 15, 30, and 45 days of
continuous stress water deficit, as well as the application of salicylic acid (0.0; 0.5; 1.0; 1.5; …