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Effect of Silver Thiosulfate Pretreatment and Ethylene Exposure on Vase Life of Cut 'Blue Magic' Iris Flowers  

Kim, Young A (CNU Center for Biomedical Human Resources, Chungnam National University)
Lee, Jong Suk (Department of Horticulture, College of Agriculture and Life Science, Chungnam National University)
Publication Information
FLOWER RESEARCH JOURNAL / v.18, no.3, 2010 , pp. 151-156 More about this Journal
Abstract
The Objective of this study was to investigate the effect of ethylene exposure and silver thiosulfate (STS) on flower senescence and vase life of cut iris (Iris hollandica). Cut iris flowers were pretreated in 1 mM STS solution for 30 minutes and exposed to 0, $3mL{\cdot}L^{-1}$ethylene for 24 hours. The vase life of iris treated at a bud stage was showed day 4.2 by exposure to $3mL{\cdot}L^{-1}$ ethylene and day 4.6 by exposure to $0mL{\cdot}L^{-1}$ ethylene. The pulsing of STS increased vase life of iris treated at a half-open stage. But, the vase life of iris was not affected by exposure to ethylene. Therefore, iris flowers were not sensitive to ethylene exposure. Iris flowers harvested at a bud stage do not progress to fully open flowers and then show flower senescnce, the optimum harvest stage seems to be a stage when flowers are open to some degree.
Keywords
Iris hollandica; bud stage; half-open stage; fresh weight; senescence; water balance;
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