Characteristics of nobile type dendrobium cultivars, 3: Differences in flower longevity
1998
Sakai, K. (Aichi-ken. Agricultural Research Center, Nagakute (Japan)) | Fukuda, M. | Morioka, K.
Large difference in flower longevity was observed among 31 mobile type Dendrobium cultivars. 'Maloflak White Night' had the shortest flower longevity of l5 days after near-to-full bloom, 'Malones Emperor' had the longest one of 47 days, and the average in the cultivars tested was 28.6 days. The number of wild species used for breeding with each cultivars was from three to ten, but the relationship between flower longevity and the kind of wild species or the number of crossing times were not clear. Flower longevity in cultivars crossed with 'Casiiope' was generally shorter and not affected by the time of flowering. However with other cultivars, the earlier they flower, the shorter the flower longevity. There were no difference in flower longevity on polyploidy. Flower longevity in tri- and tetraploids were 30 and 29 days, respectively. In contrast to the general knowledge that the thicker the petals, the longer is the flower longevity, Stardust 'Chiyomi' which has the thinnest pet
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