New data on vegetative propagation and propagation by seed of Tabebuia heterophylla.
Studies of trees in 3 climatic zones of Guadeloupe showed that leaf shedding, flowering and fruiting, and diam. increment varied with climatic zone. Leaf shedding was partial in the wet zone, from Oct. to Feb. In the dry zone, leaf shedding was total at the beginning of the dry season. Flowering and fruiting had several peaks in the wet zone, while in the dry zone flowering occurred at the end of the dry season, with fruiting 7 wk later. Diam. growth was closely associated with the arrival of the rains. For seed stored at ambient temp., germination capacity was retained for 80 days. At 15°C, germination capacity was 60-90% after 90 days. At 5°C, 100% germination capacity was retained for up to 240 days. Shoot cuttings planted in sand and propagated under mist in plastic tunnels rooted best with IBA at concn. of 0.5-1.0%. Growth of cuttings after transplanting was very good.