Seeds of four cultivars of sorghum (Contibrasil 102, DA E-57, Pioneer 8417 and TEY 101) produced at three localities (Campinas, Manduri, and Mococa), in the State of São Paulo, Brazil, had their quality evaluated after different periods of storage. Germination, first count and rapid aging tests, were used for this purpose. Germination and vigor were already low after two months of storage, and variations were also noted in relation with locations and cultivars. Best results were obtained with seeds of the hybrid Contibrasil 102 produced in Manduri.