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KMID : 0903619800210020185
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Journal of the Korean Society for Horticultural Science
1980 Volume.21 No. 2 p.185 ~ p.192
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Improving Quality and Prolonging Vase Life of Cut Flowers
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Abstract
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This study was conducted to determine the effect of silver nitrate stem impregnation and succinic acid-2, 2-dimethylhydrazide (daminozide) or α-cyclopropyl-α-(1-methoxyphenyl)-5-pyrimidinemethanol (ancymidol) spray for prologing vase life and improving quality of cut carnation (Dianthus caryophyllus L. cv. Coral) flowers. Bud-cut carnations were treated with/without stem base dipping in 1000 ppm AgNO₃ for 20 minutes prior to 2-day storage at 4℃. These were then sprayed with 500 ppm daminozide or 10 ppm ancymidol and held in distilled water or preservative solution (5% sucrose+50 ppm AgNO₃+300 ppm 8-hydroxyquinoline).
1. Stem base treatment with AgNO₃ tended to extend longevity of cut dowers bin had Little influence on flower diameter and fresh weight of cut carnations.
2. Daminozide spray had no effect on improving quality and prolonging vase life of cut carnations.
3. Ancymidol spray tended to increase flower longevity somewhat and showed slower decrease in flower weight when the flowers were senescent.
4. Ethylene production by cut flowers was reduced by pretreatment with AgNO₃ dipping and also by spray of daminozide or ancymidol. Especially, pretreatment with AgNO₃ followed by holding in preservative solution reduced ethylene production remarkably.
5. Cut flowers held in preservative solution exhibited much better quality and longer vase life than those held in distilled water. Pretreatment with AgNO₃ followed by holding in preservative solution specially extended vase life 3 times longer than control by increasing flower diameter, fresh weight, and water uptake and decreasing ethylene production of cut carnations.
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KEYWORD
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