Indicadores de maturidade fisiologica em frutos e sementes de mimosa tenuiflora will.

Abstract

The Caatinga has undergone changes over the years as a result of various factors, including the extraction of wood for charcoal production , rudimentary practices of agriculture and livestock, which has caused the destruction and distortion of the vegetation cover . Thus, the appreciation, the recovery and study of seeds of native riparian species are of great importance , because these species show a recognized economic potential in areas of Caatinga . In this respect, it is aimed to evaluate the physiological maturity of seeds of Jurema Preta ( Mimosa tenuiflora . ) In riparian areas in the Paraiba cariri region , regarded as a native species , thus contributing to the conservation of genetic diversity and richness of shrub species - arboreal Caatinga in Paraíba . The study was conducted at Riacho Pedra Cumprida , in the city of Sumé -PB . The laboratory phase was performed at the Laboratory of Ecology and Botany ( CDSA / UFCG ) . Crops began to seventh days after anthesis ( DAA ) and lasted until 35 DAA , the following parameters were evaluated: the color , the water content of the seeds , as well as the physiological quality . According to the data obtained it was found that the point of physiological maturity of seeds occurred at 35 days after anthesis , since from this period maxima emergency occurred and vigor .