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

The search for productivity and pre-harvest sprouting tolerance in wheat

Rafael Nornberg
  • Rafael Nornberg
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Henrique de Souza Luche
  • Henrique de Souza Luche
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Eder Licieri Groli
  • Eder Licieri Groli
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Rodrigo Danielowski
  • Rodrigo Danielowski
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Rodrigo Lisboa Santos
  • Rodrigo Lisboa Santos
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Ricardo Garcia Figueiredo
  • Ricardo Garcia Figueiredo
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Jose Antonio Gonzalez da Silva
  • Jose Antonio Gonzalez da Silva
  • Department of Agrarian Studies, Regional University of Northwestern State of Rio Grande do Sul, Comercio Street, Zip Code: 98700-000, P. O. Box 3000, Ijui, Rio Grande do Sul, Brazil.
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Moacir Cardoso Elias
  • Moacir Cardoso Elias
  • Department of Agroindustrial Science and Technology, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Luciano Carlos da Maia
  • Luciano Carlos da Maia
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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Antonio Costa de Oliveira
  • Antonio Costa de Oliveira
  • Department of Plant Science, Faculty of Agronomy Eliseu Maciel - FAEM, Federal University of Pelotas - UFPel, Zip Code: 96001-970, P. O. Box 354, Pelotas, Rio Grande do Sul, Brazil.
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  •  Received: 12 November 2014
  •  Accepted: 01 April 2015
  •  Published: 02 April 2015

Abstract

The pre-harvest sprouting (PHS) in wheat Triticum aestivum L. is a phenomenon that reduces productivity, degrades starch and depreciates the quality of flour. The objective was to evaluate the per se performance of traits linked to grain yield and tolerance to pre-harvest sprouting in wheat genotypes from different breeding programs in Brazil. Besides, to use indirect selection based on traits showing beneficial relationships and greater heritability than the target as a selection strategy. The study was conducted in the years 2010 and 2011 using randomized complete block design with three replications. Thirty-three genotypes of different wheat breeding programs in Brazil were evaluated. The BRS 194 and Frontana genotypes are sources of tolerance to pre-harvest sprouting in wheat. The cultivar TBIO Alvorada has PHS tolerance and high grain yield, and cultivar TBIO Ivaí presenting high grain yield. The percentage of sprouted grains has negative direct relationship with the falling number in adverse cultivating environments. The falling number shows greater heritability than the percentage of sprouted grains, indicating greater reliability in selection for PHS tolerance.

 

Key words: Triticum aestivum, pre-harvest sprouting (PHS), sprouted grains, falling number.