Fig. 2.

Ethylene production (A–C) and respiration rate (D–F) of kiwifruits (cv. ‘Hayward’) during shelf life (20 °C) for 1, 2, 4, 6, 8, 10, and 12 days after 1 (A,D), 3 (B,E), and 5 (C,F) months of cold storage (0 °C, 95% relative humidity) in the absence (control) or presence of ozone (0.3 μl l⁻¹). Values are means ± SE (n = 5). Asterisks indicate values that differ significantly at each time point (pairwise Student's t-test, P < 0.05).