Estudo fenológico de quatro espécies arbóreas de importância econômica potencial da caatinga no município de Pombal - PB, Brasil.

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 área. 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 importante for the Brazilian Northeast. For se much, in an área of located savanna in the region of Pombal - PB, ten individuais of each one of the chosen species: angico (4nadenanfhera co/ubdr7a (Vela.) Brenan) - M/mofo/dele; aroeira (Myracroduon urundeuva (Fr.) Al1.) - .4r7acard/acede; cumaru (.4mf)ufana Cearens/s (Allemão) A. C. Smith) - Fal)o/dele; and oiticica (dg/d l./can/a Benth.) -ChWsoba/anaceae, were marked and numbered in sequence. Biweekly evaluations were accomplished for the identiüication of the spring up phenophases, bloom, fructiüication and diásporas dispersion or seeds, in the period of August of 2007 to July of 2009. In the analysis of the results was observed that the species 4r7adena/7fhera co/uóflna, A#yracrodruon urundeuva and 4mburana ceaíens/s are classiüled like deciduous species and dgid LIGam/a as perenefó/fa. 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 área. The species /fg/d Ucan/a maintain it's completely cup of leaves during the year, with floration presence in the dry station and fructiüication 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 evento.