Maturação fisiológica de sementes de mimosa tenuiflora Willd.

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 plant cover. In this regard, our aim was to this research, studying the physiological maturity of seeds Mimosa tenuifloraWilld., regarded as a native species, thus contributing to the conservation of genetic diversity and richness of woody species in Caatinga Paraíba. The work was performed at Stone Creek Accomplished in the municipality of Sume-PB. The laboratory stage was performed at the Laboratory of Ecology and Botany (CDSA / UFCG). Crops began to seventh days after anthesis (DAA) and extended until 35 DAA, with the following parameters: the color, the water content of the seeds, as well as the physiological quality. According to the data obtained it was found that the physiological maturity of seeds occurred at 35 days after anthesis, since from this period were maximum values of germination and vigor.