On the cover
Long vase life and low ethylene sensitivity are important for dahlia to maintain their commercial value when they are used as a cut flower. We crossed cultivars with a long vase life and cultivars with a low degree of abscission to examine the possibility of producing lines with both traits. While offspring from the crossing showed various degrees of abscission, lines F182-10, F181-14, and F182-17 consistently showed no abscission throughout the evaluation. Thus, they were selected as lines with a low degree of abscission. Moreover, the vase lives of lines F182-10 and F182-17 were longer than that of the parental cultivar, ‘Port Light Pair Beauty’. This is the first report of breeding dahlia with a low degree of abscission, and it indicates the possibility of producing lines with both long vase life and a low degree of abscission. Accordingly, to improve vase life of the selected lines, further breeding is now in progress.
(Provided by T. Fujimoto: NARO)
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