Abstract
Abstract Bud applications of 6-benzylamino purine (BA) suspended in lanolin at concentrations of 1, 5, 25, and 50 mg/ml effectively induced either the initiation of bud growth or the development of lateral branches in nonpinched, nonbranching ‘Ruff and Reddy’ poinsettia (Euphorbia pulcherrima Wild ex. Klotz). No lateral branches developed on nonpinched controls. Application of 25 and 50 mg/ml of BA promoted additional axillary bud activity in untreated axillary buds above treated ones. This loss of apical dominance in upper untreated buds indicates that BA was transported. Bud applications of 150 μg/ml t-cinnamic acid (tCA) alone or in combination with BA had no effect on promoting bud activity.
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