Journal Of Applied Horticulture ISSN: 0972-1045


F. Koohkan, N. Ahmadi and S.J. Ahmadi

Department of Horticultural Sciences, Tarbiat Modares University, Tehran, Iran. Jaber Ibne Hayyan Research Laboratories, Nuclear Science and Technology Research Institute, Tehran, Iran.

Key words: Chlorophyll, inductively coupled plasma (ICP), vase solution, ethylene

Journal of Applied Horticulture, 2014, volume 16, issue 3, pages 210-214.

Abstract: Most of the carnation cultivars are sensitive to exogenous ethylene and their petals exhibit autocatalytic ethylene production during senescence. Compounds containing silver have been shown to act as anti-ethylene agent in improving postharvest characteristics of cut flowers. The experiment was conducted in a completely randomized design with three replications by applying four concentration of silver nano-particles in vase solution of cut carnation cultivar ‘Miledy’. ICP-AES analyses revealed that the higher amount of silver was absorbed in various tissues of plants treated with 5 mg L-1, compared to other concentrations. Cut stems of ‘Miledy’ cultivar receiving 5 mg L-1 of silver nano-particles showed the highest vase life and the lowest rate of ethylene production. The tissue accumulation of Ag element was generally higher in basal stem ends and leaves treated with 5 mg L-1 than other concentrations. The results of ICP and ethylene measurement showed that silver nano-particles reduced ethylene production as well as bacterial growth in vase solution and resulted improved vase life of carnation.

Journal of Applied Horticulture