Estabilidade da produ？？o de germoplasma de milho avaliado em diferentes regi？es do Brasil

the objective of this work was the obtention of information on the response pattern of 30 maize genotypes in 14 environments of brazil in 1995/96. the stability parameters of ear yield were estimated. all the genotypes varied for yield adaptability. the three-way cross p 3041 presented the best yield and showed low stability to a deterioration on environmental variations. the open pollinated materials cms 50 and br 106 were, respectively, the first and fifth best yieldings among all the studied maize genotypes, with low adaptation on unfavorable environments. the identification of promising maize genotype was possible for immediate utilization and as a source of germplasm in breeding programs.