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The objective of this research was to evaluate the germinative performance of different genotypes of hybrid and varietal maizes submitted to different temperatures in order to inform farmers in maize cultivation. A completely randomized design was used in the factorial scheme 5 x 7 (cultivars x temperature), with eight replicates of fifty seeds. Five maize cultivars were tested, being four varieties: AL Bandeira, Cativerde 02, Capixaba Incaper 203, Fortaleza and one double hybrid AG1051. The germination of the seeds of the five cultivars were conducted at seven temperature levels (16, 20, 24, 28, 32, 36 and 40 °C), kept constant throughout the germination period. We evaluated the percentage of total germination and first count; number of normal and abnormal seedlings; number of seeds not germinated and germination rate. For non-parametric analysis, the KruskalWallis test was used and the means were compared by non-parametric multiple comparisons at 5% probability. Varietal seeds showed higher germination tolerance at different temperature levels. Temperatures at 16 and 40 °C did not have an incidence of normal germinated seedlings.

GERMINAÇÃO DE CULTIVARES DE MILHO EM DIFERENTES TEMPERATURAS