Qualidade fisiológica de sementes de milho crioulo (Zea mays. L) armazenadas em diferentes embalagens e temperaturas

Abstract

Heirloom seeds are traditionally passed on from generation to generation. Generally the Creole corn is grown by small producers using as the basis for human, animal feeding and reproduction of the species. Many times the storage of seeds occurs inappropriately in uncontrolled environments, lack of structure and knowledge, undermining the quality and productivity of the future seed. The problems of conservation of agricultural products constitute object of permanent study, aiming to prolong to the maximum quality of products stored. The aim of this study was to evaluate the influence of different packaging and temperatures along the storage time of the Creole maize seed variety Lagarto. Were tested four packaging (bottles, plastic bags, vacuum packed bags and raffia on the COB) and two storage temperatures (camera with average temperature to 25° C ambient and chilled camera to 10° C), with three days of evaluations (time zero, 60 days and 120 days of storage). Germination tests were carried out and humidity beyond the existing tests: emergency, emergency speed index, electric conductivity and aboveground dry weight of seedlings. The data were subjected to analysis of variance and averages compared by Tukey test at 5% probability. The treatment obtained better result of germination, moisture and keeping existing tests was the seed with drying at 13% and stored on own spike the temperature of 10° C, in conclusion, therefore, that the storage in own COB under these conditions maintain the physiological quality of seeds of corn Creole for 120 days of storage.