Effects of Postharvest Nano Calcium and Benzyl Adenine Application On Physicochemical Properties of Chrysanthemum Cut Flowers

Chrysanthemum is one of the most important ornamental plants in the world and post-harvest studies on this valuable flower will improve its quality and marketability. In this study, the effects of preservative solutions containing Nano calcium (0, 2 and 4 g L-1) and benzyl adenine (0, 20 and 40 mg L-1) and the combined effect of two treatments in a factorial experiment in the form of a complete design randomized study with three replications to maintain the quality and increase the life of the chrysanthemum at room temperature (20-22 ° C) and relative humidity between 60 and 70% was investigated. The results showed that the treatment of benzyl adenine 20 mg L-1  maintained higher marketability in cut flowers, chrysanthemum through reduced weight loss and increased water absorption. Treatment with concentrations of 4 g L-1 Nano calcium showed 66% difference in bacteria less than the control, respectively, and its combination with treatment with benzyl adenine had positive effects on the preservation of the main pigments of photosynthesis, phenol and flavonoids. In general, according to the results obtained in this study, the treatment of 20 mg L-1  benzyl adenine and 2 g L-1 Nano calcium in comparison with the control and other treatments is recommended to maintain quality and increase the shelf life of chrysanthemums cut flower.