African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 5971

Full Length Research Paper

Simulation of oat grain (Avena sativa) using its panicle components and nitrogen fertilizer

Rubia Diana Mantai*
  • Rubia Diana Mantai*
  • Departament of Exact Science and Engineering, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Jose Antonio Gonzalez da Silva
  • Jose Antonio Gonzalez da Silva
  • Departament of Agrarian Studies, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Emilio Ghisleni Arenhardt
  • Emilio Ghisleni Arenhardt
  • Department of Crop Plants, Federal University of Rio Grande do Sul (UFRGS), 7712 Bento Gonçalves Avenue, Porto Alegre, RS, 91501-970, Brazil.
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Osmar Bruneslau Scremin
  • Osmar Bruneslau Scremin
  • Departament of Exact Science and Engineering, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Angela Teresinha Woschinski de Mamann
  • Angela Teresinha Woschinski de Mamann
  • Departament of Exact Science and Engineering, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Rafael Zancan Frantz
  • Rafael Zancan Frantz
  • Departament of Exact Science and Engineering, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Antonio Carlos Valdiero
  • Antonio Carlos Valdiero
  • Departament of Exact Science and Engineering, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Rafael Pretto
  • Rafael Pretto
  • Departament of Agrarian Studies, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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Dionatan Ketzer Krysczun
  • Dionatan Ketzer Krysczun
  • Departament of Agrarian Studies, Regional Northwest University of Rio Grande do Sul (UNIJUÍ), 3000 Comércio Street, Ijuí, RS, 98700-000, Brazil.
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  •  Received: 26 February 2016
  •  Accepted: 01 August 2016
  •  Published: 06 October 2016

Abstract

Nitrogen fertilizer management modifies oat (Avena sativa) panicle components and its grain yield. The work aims to study the potential of the variables of oat (A. sativa) panicle with N-fertilizer, and to simulatate its grain yield using multiple linear regression in succession systems of high and reduced N-residual release. The study was done in 2013 and 2014. The experiment was done in a complete randomized block of 4×2 factorial design, with four replications. The treatments include: nitrogen fertilizer of four doses (0, 30, 60 and 120 kg ha-1), oat (A. sativa) cultivars at two levels (Barbarasul and Brisasul) and succession system at two levels (soybean/oat (A. sativa) and corn/oat (A. sativa). The multiple linear models were efficient in the harvest index of panicle of soybean/oat (A. sativa) system, regardless of the dose evaluated. However, at high doses, the number of grain per panicle was included. In the corn/oat (Avena sativa) system, the harvest index of panicle, the number of grains and spikelets panicle were adjusted based on the model. The multiple linear regression efficiently simulates N-fertilizer to affect the grain yield of oat (Avena sativa) and one or more potential variables of panicle in the succession systems.

Key words: Inflorescence, succession system, stepwise, multiple linear regression.