Adaptability and stability of maize cultivars in different environments of Sergipe and Alagoas states

In the season 2003, maize variesties and hibrids were evaluated in two experimental networks, in several ecosystems of the coastal tablelands and agreste of the Sergipe States in order to know the adaptability and stability for ends cultivars recommendation. Were observed, in both experimental networks, differences among the evaluated materials and inconsistency of those materials due to the enviromental oscillations. The hybrids showed better adaptation than the varieties and those materials due to the environmental oscillations. The varieties that showed good adaptation and wide adaptability are very important for the region, mainly, for the cropping systems of the small and medium farmers.