Estudo fenológico de quatro espécies arbóreas da caatinga.

Abstract

The study of the behavior of the vegetable species of the savanna has been discussed as important parameter in the maintenance of the existent resources in this area. This work had for objective to supply necessary information to future studies of botany and ecology, in what it concerns the behavior of arboreal species that present potential economical importance for the Brazilian Northeast. For so much, in an area of located savanna in the region of Pombal - PB, ten individuals of each one of the chosen species: angico (Anadenanthera colubrina (Vell.) Brenan) - Mimosoideae; aroeira (Myracroduon urundeuva (Fr.) All.) - Anacardiaceae; cumaru (Amburana Cearensis (Allemão) A. C. Smith) - Faboideae; and oiticica (rigid Licania Benth.) - Chrysobalanaceae, were marked and numbered in sequence. Biweekly evaluations were accomplished for the identification of the spring up phenophases, bloom, fructification and diasporos dispersion or seeds, in the period of August of 2007 to July of 2009. The abscission of the leaves of Anadenanthera colubrina, Myracrodruon urundeuva and Amburana cearensis happen in the station evaporates and the rebloom in the rainy station of the area. The species rigid Licania maintain it’s completely cup of leaves during the year, with floration presence in the dry station and fructification with dispersion of seeds between September and February. The phonological patterns of the studied species are distinguished in agreement with the temporary distribution of the climatic events.