Figure 1.

Effects of γ-aminobutyric acid (GABA) on (A) turf quality (TQ), (B) relative water content (RWC), and (C) electrolyte leakage (EL) in creeping bentgrass under normal, heat, and drought conditions. Vertical bars indicate ±standard error (SE) of mean (n = 4). Different letters above columns indicate significant differences for one particular treatment (control or +GABA) under different conditions; asterisk “*” indicates significant difference between control and +GABA treatment under a given condition.