Postharvest Melatonin Application Preserves Quality and Imparts Chilling Tolerance in Peaches

Figure 10

Effect of 0 μM (control) or 100 μM (treated) melatonin on (a) proline content, (b) Δ¹-pyrroline-5-carboxylate synthetase (P5CS), (c) ornithine-δ-aminotransferase (OAT), and (d) proline dehydrogenase (PDH) activity in peach fruit stored at 2 ± 1°C for 21 days followed by a simulation period of 3 days at ambient temperature. The letters a, b, and c indicated significant differences following the application of MT with 100 µM as based on Tukey’s test ().

(a)

(b)

(c)

(d)