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피인용 2

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    초록·키워드

    This study was conducted to investigate the effect of 1-methylcyclopropene (1-MCP) on the retardation of senescence in Hibiscus flowers. Cut flowers of Hibiscus (Hibiscus syriacus L. cv. Hansarang) were held in the laboratory at 23 ± 2°C of temperature, 60 ± 5% of relative humidity, and 20 µmol·m⁻²·s⁻¹ of irradiance, and necessary measurements were taken. According to typical pattern of the flowering and senescence of Hibiscus, the rapidly increasing bud's diameter reached anthesis between 6~12 hours after experiment and then petals were inrolled abruptly from 36 hours. Correlation between flower diameter and ethylene production showed that ethylene production increased considerably before 6 hours at which wilting or inrolling occurred, and ethylene production and wilting were accelerated by petal inrolling. On the contrary, the application of 10 nL·L⁻¹ 1-MCP for 3 hours on the flower made the diameter of flower increase constantly up to 36 hours with very low level of ethylene production. When Hibiscus flower was treated with various concentrations of 1-MCP and durations, it was found that treatment of 10 nL·L⁻¹ 1-MCP for 3 hours were most effective on the inhibition of ethylene production and retardation of senescence. In this case, vase life of Hibiscus were extended 140% (53 h) more than that of control. On the other hand, treatment of 10 nL·L⁻¹ 1-MCP for 6 hours reduced vase life of Hibiscus. The reduction of vase life was attributed to the damage of plant tissue by the chemical. In the light of application time, ethylene production was extremely inhibited, if 1-MCP was applied to Hibiscus at stage I.

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      UCI(KEPA) : I410-ECN-0101-2009-525-016877931