Resumo

SILVA, M.R. et al. Agronomic characterization of maize genotypes for silage. Arch. zootec. [online]. 2014, vol.63, n.242, pp.385-388. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922014000200017.

The aim of this work was to evaluate the agronomic characteristics and yield of six maize genotypes cycle super early in the production of silage in Dois Vizinhos, Paraná. The experiment was conducted at experimental area of the Universidade Tecnológica Federal do Paraná. The average height difference among cultivars, ranging from 1.62 (Al-Piratininga) to 0.90 m (BMX 739). The hybrid AGN30A03 showed less resistance to lodging of plants and culm breakage. The genotypes BMX 739, CD 304, PRE22T11 and Al-Piratininga obtained the highest yield of fresh forage (638.81, 455.18, 620.98, 460.12 g plant^-1, respectively). The variety Al-Piratininga presented a higher number of ears per plant (1,11) than those of the other varieties. Among the materials tested, the genotype BMX 739, showed the highest dry matter yield per area and the percentage share of spike (29 %) and grains (26 %) in the phytomass.

Palavras-chave : Dry matter; Forage; Zea mays.

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