African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Conventional and twin row spacing in different population densities for maize (Zea mays L.)

Zenilson Balem
  • Zenilson Balem
  • Programa de Pós-graduação em Agronomia, Universidade Tecnológica Federal do Paraná - PPGAG/UTFPR, Via do Conhecimento, km 01, Pato Branco – PR, 85503-390, Brazil.
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Alcir José Modolo
  • Alcir José Modolo
  • Programa de Pós-graduação em Agronomia, Universidade Tecnológica Federal do Paraná - PPGAG/UTFPR, Via do Conhecimento, km 01, Pato Branco – PR, 85503-390, Brazil.
  • Google Scholar
Michelangelo Müzell Trezzi
  • Michelangelo Müzell Trezzi
  • Programa de Pós-graduação em Agronomia, Universidade Tecnológica Federal do Paraná - PPGAG/UTFPR, Via do Conhecimento, km 01, Pato Branco – PR, 85503-390, Brazil.
  • Google Scholar
Thiago de Oliveira Vargas
  • Thiago de Oliveira Vargas
  • Programa de Pós-graduação em Agronomia, Universidade Tecnológica Federal do Paraná - PPGAG/UTFPR, Via do Conhecimento, km 01, Pato Branco – PR, 85503-390, Brazil.
  • Google Scholar
urilo Mesquita Baesso
  • urilo Mesquita Baesso
  • Departamento de Engenharia Biossistemas, Universidade de São Paulo - FZEA/USP, Av. Duque de Caxias Norte, 225, Pirassununga – SP, 13635-900, Brazil.
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Evandro Martin Brandelero
  • Evandro Martin Brandelero
  • Departamento de Agronomia, Universidade Tecnológica Federal do Paraná - UTFPR, Estrada para Boa Esperança, Km 04, Dois Vizinhos – PR, 85660-000, Brazil
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Emerson Trogello
  • Emerson Trogello
  • Programa de Pós-graduação em Fitotecnia, Universidade Federal de Viçosa – UFV, Av. Peter Henry Rolfs, s/n, Viçosa – MG, 36570-000, Brazil
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  •  Received: 26 March 2014
  •  Accepted: 19 May 2014
  •  Published: 10 June 2014

Abstract

The increase in maize yield is directly related to management practices, especially the manipulation of spatial arrangement of plants. This work aimed, evaluated the effect of conventional and twin-row spacing in different plant densities for maize, in the crop year 2011/2012. The treatments consisted of combinations between two rows spacing (twin-row spacing (0.2 x 0.7 m) and conventional spacing (0.7 m)) and five plant populations (50,000; 65,000; 80,000; 95,000 and 110,000 plants ha-1). It was evaluated the plant height, insertion height of the first ear, stem diameter, number of rows, number of kernels per ear, weight of 1,000 kernels, ear weight and yield. The use of twin row spacing provided better results for stem diameter, number of rows, number of kernels per ear, weight of 1,000 kernels, ear weight and the average maize yield. The stem diameter, number of kernels per ear, weight of 1,000 kernels and ear weight responded negatively to increased plant density.
 
Key words: Plant arrangement, yield, agronomic characteristics.