Effect of post-harvest application of methyl jasmonat on qualitative traits and storage life of strawberry cv. camarosa

the aim of this study was to evaluate the effect of post-harvest dipping treatment of methyl jasmonate on quality and shelf life of fruit in "Camarosa" strawberry cultivar. In this experiment, the strawberry fruits were dipped thoroughly in methyl jasmonate in five levels (0, 25, 50, 75 and 100 µM( as a treatment. Factorial experiment in a completely randomize design (two factors: different concentrations of methyl jasmonat and storage in coldroom for 12 days) in four replications. Qualitative characteristics shuch as soluble solids, titratable acidity, total flavonoids and antioxidant capacity were measured. Results showed that all of the concentrations of methyl jasmonat caused significant differences in the amount of total soluble solids, titratable acidity, vitamin C, pH, total phenol and flavonoids, antioxidant activity and weight loss compared to the control. so that in the treated fruits the amount of weight loss and pH was less than control and the amount of total soluble solids, titratable acidity, vitamin C, total phenol, flavonoids, antioxidant activity was more than control. Also the highest levels of total phenols and flavonoids and antioxidant activity were observed in fruits treated with 100 µM methyl jasmonate and the lowest levels of this traits was recorded in control during storage.