Technique de pollinisation contrôlée du Tabebuia heterophylla ou Poirier pays

Abstract

The species Tabebuia heterophylla, implanted in the Caribbean basin, has the particularity of growing in areas with a marked dry season. It is a tree whose size reaches twenty meters high, provides excellent timber highly valued by carpenters and cabinetmakers. Subjects with well-shaped trunks have been overexploited, resulting in the decrease of the interesting population. In order to remedy the disappearance of the exploitable resource, the former Forest Research Unit of the Inra Guadeloupe closed in 2002 launched a study on the genetic improvement of this tree. The first step of this work involved the controlled pollination of this species. This began with the selection of trees in the Lesser Antilles for the establishment of two clone parks and a seed orchard on the Duclos site. We then pollinated the clones with the mixture of pollen (polycross) and obtained plants suitable for progeny tests.