ISHS Acta Horticulturae 673: IX International Symposium on Flower Bulbs
PROPAGATION OF BULBOUS ORNAMENTALS BY SIMPLE CULTURES OF BULB-SCALE SEGMENTS USING PLASTIC VESSELS |
| Author: | T. Yanagawa |
| Keywords: | ornamental bulbs, bulblet regeneration, Amaryllidaceae, Liliaceae, simple culture, twin-scale segments, single-scale segments |
| Abstract:
The purpose of this study was to investigate bulblet regeneration of bulb-scale segments excised from bulbs of 26 species and eight garden cultivars in the Amaryllidaceae and Liliaceae using plastic vessels. Moistened horticultural vermiculite or Japanese cedar bark were distributed to two types of plastic vessels, polyethylene bags (250 x 350 mm) and polyvinyl chloride cylinder vessels (130 x 100 mm). Cultures of twin-scale segments with basal plate using the plastic vessels afforded high bulblet regeneration for the majority of species tested. In the species and the garden cultivars belonging to the Liliaceae, not only single-scale segments with basal plate but also those without basal plate induced bulblets at a high rate regardless of the species. In contrast, in most of the species in the Amaryllidaceae, the single-scale segments with basal plate showed a clear tendency to produce bulblets at a higher rate than the ones without basal plate. In these cultures, a high regeneration rate was found for segments with cutting treatments to a third of the segment length from the proximal ends of the segments. The simple cultures of the bulb-scales segments using the plastic vessels proved to be feasible for artificial induction of bulblets in most of the species including lilies. | |
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