Extension of vase life and Ag content in cut flowers of Delphinium treated with STS
2009
Kuroshima, M.(Hokkaido. Ornamental Plants and Vegetables Research Center, Takikawa (Japan)) | Ichimura, K. | Ubukata, M.
Cut flowers of Delphinium x belladonna 'Sky Waltz' and D. grandiflorum 'Highland Blue' were treated with STS solution at 0.1-0.4 mM for different periods. The vase life of 'Sky Waltz' flowers was longest when the Ag content in florets was more than 3 micro mol/100 g FW. Similarly, the vase life of 'Highland Blue' flowers was longest when the Ag content in florets was more than 2 micro mol/100 g FW. The vase life of cut flowers was not influenced by STS concentration or duration of treatment as long as the Ag content in florets was more than the level described above. To achieve this Ag levels, treatment with STS at a concentration of 0.2 mM or higher was necessary for both varieties.
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