Inflorescence lifespan and fruit set are affected by photo-thermal signals. A and B) Duration (A) and the number of fruits (B) of the PI in plants grown at 15 °C, 17 °C, 20 °C, 22 °C, 25 °C, or 27 °C (n = 9 to 12). C and D) Duration (C) and the number of fruits (D) of the PI in plants grown at 50, 100, and 150 μmol s⁻¹ m⁻² (n = 4 to 9). E and F) Duration (E) and the number of fruits (F) of the PI in plants grown at 8 and 16 h of day length (n = 11 to 12). Different letters indicate statistical differences between conditions (for A–D: ANOVA, Tukey Honestly Significant Difference (HSD), P < 0.05, for E and F: Student's t-test, P < 0.05). Boxes indicate the interquartile range. The central line indicates the median, and whiskers show minimum and maximum values.