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Abstract
The cultivation, conessine content and harvesting methodology for Holarrhena floribunda were investigated. Allometric measurements are proposed as prediction tools for estimation of trunk total productions of bark and conessine. A linear relationship found between stem diameter and bark conessine content allowed the establishment of log-log correlations between trunk circumference and trunk production of bark and conessine. Harvesting of a five years old culture by a coppicing method could be estimated at 976 kg/ha of stem bark and 7.8 kg/ha of conessine. Stems of diameter < 0.5 cm present little interest for alkaloid production and should be discarded.