Fig. 1

Morphological response under heat stress treated with 4-CPA or ethanol (EtOH). (a) Plant phenotype under 37 °C. Several parameters, such as plant height (b), plant thickness (c), number of flower/cluster (d), and rate of fruit set (e) were measured. Statistical analysis was performed to determine significant differences compared to the control at p < 0.05 (*) and at p < 0.01 (**) (n ≥ 4).