The Impact of Pre and Postharvest Treatments on the Quality and Vase Life of Cut Lisianthus Flowers
Subject Areas : Research On Crop Ecophysiology
Keywords: Keywords: Ascorbate peroxidase, Vase life, Melatonin, Salicylic acid, Catalase, Polyphenol oxidase,
Abstract :
The Impact of Pre and Postharvest Treatments on the Quality and Vase Life of Cut Lisianthus Flowers MINA CHAM-ASEMANI1 AND MEHRDAD JAFARPOUR2,3* 1- Msc., Department of Horticultural Sciences, Isf.C., Islamic Azad University, Isfahan, Iran 2- Associate professor, Department of Horticultural Sciences, Edibe and Medicinal Mushrooms Research Center, Isf.C., Islamic Azad University, Isfahan, Iran 3- Institute of Agriculture, Water, Food, and Nutraceuticals, Isf.C., Islamic Azad University, Isfahan, Iran *Corresponding author’s E-mail: Mehrdad.jafarpour@gmail.com Received: 10 March April 2025 Accepted: 25 June 2025 ABSTRACT Lisianthus (Eustoma grandiflorum), a member of the Gentianaceae family, is a commercially important cut flower. This study investigated the effects of pre-harvest (salicylic acid, vermicompost, humic acid, and their combination) and postharvest treatments (melatonin, rosemary essential oil, and tragacanth gel) on the activity of antioxidant enzymes and the vase life of cut lisianthus flowers. The experiment was conducted as a completely randomized design with 12 treatments and 3 replications. The evaluated enzymatic traits included catalase (CAT), ascorbate peroxidase (APX), and polyphenol oxidase (PPO) activities. The results demonstrated that all combined treatments significantly influenced the biochemical characteristics at the 1% probability level. Among all treatments, the melatonin-vermicompost combination was identified as the most effective. It resulted in the lowest degradation, as indicated by the smallest increase in PPO activity, alongside favorable outcomes for CAT and APX enzymes, ultimately leading to the greatest extension of vase life. In conclusion, the application of these treatments, particularly the combined melatonin-vermicompost treatment, effectively enhances the postharvest longevity of cut lisianthus flowers and is highly recommended. Keywords: Ascorbate peroxidase, Vase life, Melatonin, Salicylic acid, Catalase, Polyphenol oxidase
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