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Effects of 1-Methylcyclopropene and Benzyladenine on Flowering and Vase Life in Cut Iris  

Nam, Jin Soo (Department of Horticulture, Kyungpook National University)
Park, In Sook (Department of Horticulture, Kyungpook National University)
Shim, Sung Im (Department of Horticulture, Kyungpook National University)
Ryu, Jung A (Gyeongbuk Agricultural Research and Extension Services)
Lim, Ki Byung (Department of Horticulture, Kyungpook National University)
Publication Information
FLOWER RESEARCH JOURNAL / v.18, no.2, 2010 , pp. 87-92 More about this Journal
Abstract
This research was aimed to extend the vase life, improve the cut flower quality and promote flowering rate of bulbous cut Iris 'Blue Magic'. Three different concentrations of 1-MCP ranging from 250 to $750nL{\cdot}L^{-1}$ were treated on cut Iris flowers for the vase life elongation. Several effects of 1-MCP treatment has shown such as early flowering as one day but vase life showed no significant differences comparing to the untreated control. Flowering rate was 75% or more in the treated ones as compare to 64.2% in untreated control. Especially, in a treatment with $250nL{\cdot}L^{-1}$ 1-MCP for 12 hours it showed all flowering. In many post-harvest experiments of cut flowers, ethylene production from flower organ has considered as most critical factor on vase life. Ethylene production from flower organ was measured by gas chromatography (GC) and it showed that there is no direct relation between flower longevity and emission of the ethylene gas in cut Iris. In comparison with the untreated control, ethylene generation rather seems to be increased as 1-MCP treatment increased. There was a synergy effect when 1-MCP and BA applied simultaneously in which flowering and vase life were fastened and also extended, respectively. Therefore, treatment of 1-MCP for cut Iris at flower early harvest is able to improve the flower quality both by diminishing non-flowering rate and by extended flower longevity.
Keywords
'Blue Magic'; cut flower; ethylene; gas chromatography; non-flowering;
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Times Cited By KSCI : 5  (Citation Analysis)
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