Extending the vase life of rose cut flower cv. Bakara using inhibitors of physiological vascular occlusion
2020
Hamidi, Es-hagh | Roein, Zeynab | Karīmī, Mahnāz
Purpose: Rose cut flowers have a short postharvest life, which can be increased using different treatments. Thus, an experiment was designed to determine the effect of hot water (one min) and chemical solutions (pulse treatment for 20 h) on the postharvest quality of cut rose flowers cv. Baraka. Research Method: Hot water treatments contain 50, 55, and 60 °C, chemical treatments consist of catechol (5 and 10 mM), sodium azide (0.05 and 0.1 mM) and sodium metabisulfite (5 and 10 mM). Afterward, for the evaluation of associated traits with longevity, the flowers were kept in a vase solution containing sucrose (3%) and hydroxyquinoline (8-HQ at 200 mg. L-1). Findings: The results showed that the vase life of cut flowers extended about four days by the application of chemical treatments as compared with control. The maximum vase life (9.9 days) observed in 0.05 mM sodium azide and 10 mM catechol (9.7 days). Also, the vase life of cut flowers increased 3.7 days by hot water treatments (at 50 and 55 °C) in comparison to the control. Moreover, the results revealed that the catechol, sodium azide and sodium metabisulphite treatments delayed flower senescence and maintained leaf chlorophyll and petal anthocyanin content. The lowest content of lignin was obtained in 10 mM catechol, and 0.1 mM sodium azide. Research limitations: There was no significant limitation to the report. Originality/Value: Overall, the results showed that catechol and sodium azide were the most effective treatments to increase the vase life of rose cut flowers.
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