Responses of Cut Carnation 'Tempo' to 1-MCP

• Published in: Acta horticulturae no. 877; pp. 285 - 290
• Main Authors: Hashemabadi, D, Livani, B.K, Torkashvand, A.M, Sedaghathoor, S, Mostofi, Y
• Format: Journal Article
• Language: English
• Published: 01.01.2010
• Subjects: 1-methylcyclopropene; application rate; chlorophyll; cut flowers; Dianthus caryophyllus; ethylene inhibitors; light intensity; storage quality; vase life; water uptake
• ISSN: 0567-7572
• DOI: 10.17660/ActaHortic.2010.877.33

Water uptake and chlorophyll content are two important factors in postharvest quality of cut carnations (Dianthus caryophyllus L.). 1-MCP (1-methylcyclopropene), as a gaseous inhibitor of ethylene action, increased water uptake and chlorophyll content of cut carnation. The effects of 1-MCP depend on concentration and time duration. In this experiment, the effect of different 1-MCP concentrations (0, 20, 40, 60, 80 and 100 nl L-1) and time durations (3, 6 and 9h) on water uptake, chlorophyll index and loss of fresh weight were studied. Cut flowers were kept in the postharvest room with 20±2°C, 60-70% RH, 15-20 micromol s-1 m-2 light intensity and 12h photoperiod. The effect of 1-MCP concentrations and interaction between 1-MCP concentration and time duration on water uptake, chlorophyll index and loss of fresh weight were significant (P<1%). 60 nl L-1 1-MCP with 2.41 ml g-1 FW water uptake and 3.76 chlorophyll index and 1.924 g loss of fresh weight per one cut flower, was better than other treatments.