Influence of exogenous application of melatonin on biochemical changes of avocado fruit during ripening

Melatonin (MT) is considered as a plant growth regulator, has extensive functions and plays prominent role in ripening fruit senescence. However, there been no report regarding the influence of melatonin on biochemical changes avocado (Persea americana Mill.) during ripening. In this study, cultivar “034” was treated with MT at 0.1 mM 0.5 to evaluate relating quality storage 22 oC ± 1 75–80% relative humidity. The results showed that postharvest fruits effectively delayed parameters effectiveness depends concentration. Application (0.5 mM, immersion for 2 hours) enhanced total phenol flavonoid accumulation maintained titratable acidity, soluble solids, lipid ascorbic acid contents. Furthermore, treatment suppressed increase sugar reduced weight loss compared control after 12 days storage. indicate application could be useful tool maintain stage.