Efeitos do armazenamento na emergência de sementes de mulungu (erythrina velutina wild.).

Abstract

Storage is a fundamental practice in controlling the physiological quality of the seed, since it is a method that can preserve the viability and the vigor of these for a longer period. The objective of this work was to study the physiological quality and storage of seeds of the native mulugu species (Erythrina velutinaWeld.), previously selected in the Paraíba region. The work was carried out at the Ecology and Botany Laboratory (CDSA / UFCG). The seeds of the species studied were collected from matrices located in the same municipality and taken to the laboratory, where the homogenization was carried out. For the studies of physiological quality, the following parameters were evaluated: water content and physiological quality. In the storage process, the effects of packaging (paper and plastic bag) and freezer (controlled temperature) and laboratory environment conditions (uncontrolled temperature conditions) were considered, where each month of storage was evaluated the physiological quality of themselves. Thus, it is verified that the environments and packaging influenced the reduction of the studied parameters along the storage. The reduction was more pronounced when the seeds were packed in paper packaging and stored in a laboratory environment. In this sense, it was verified that the seeds of the species studied were orthodox, and that the packaging in paper or plastic containers in freezer, promoted the best results, without significant losses in emergencies of the seedlings.