Further characterization of the action of pyridinedicarboxylic acids: multifunctional flower care agents for cut flowers of spray-type carnation
Faculty of Agriculture, Ryukoku University, Otsu 520-2194, Japan. Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto 606-8522, Japan. Kyoto Prefectural Institute of Agricultural Biotechnology, Seika Town, Kyoto 619-0224, Japan.
DOI: https://doi.org/10.37855/jah.2016.v18i01.01
Key words: pyridinedicarboxylic acids; spray-type carnation; carnation cultivars; flower bud; time to flower opening; vase life; gross flower opening
Abstract: Pyridinedicarboxylic acid (PDCA) analogs accelerate flower opening and retard senescence, which markedly extend the vase life of spray-type Light Pink Barbara (LPB) carnation. In the present study, we characterized the activity of these chemicals to develop a novel flower care agent for a practical use. A representative PDCA analog 2,4-PDCA is effective in a wide range of spray-type carnation cultivars, Barbara, Beam Cherry, Candle, Collin, Rascal Green and Scarlet Ostara, as well as LPB and Mule. Treatment of LPB flowers for the initial 24 h with 2,4-PDCA at 5 and 10 mM was almost as effective as the continuous treatment with the chemical at 2 mM.
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