Abstract
Effects of Uniconazole-P and Paclobutrazol foliar application on the growth and flowering of Duranta repens L. ‘Takaraduka’ were investigated. Uniconazorle-P was more effective than Paclobutrazol for inhibition of stalk elongation. Uniconazole-P at 12.5 mg · liter-1 was suitable for cultures in 9 to 12 cm pots. As for Paclobutrazol, an effect was hardly seen at even 300 mg · liter-1. To increase the number of flower-bearing branches, the timing of Uniconazole-P application was also examined. The most effective treatment was duplicated application 10-14 days after pinching and repeated 2 weeks after the first application. Uniconazole-P decreased the node number necessary for flower bud differentiation of ‘Takaraduka’ to 4-5.
