African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6142

Full Length Research Paper

Physiological response of colza (Brassica napus L.) seeds coated and treated with alternative materials

Dalmo Marcello de Brito Primo
  • Dalmo Marcello de Brito Primo
  • State University of Paraíba, Lagoa Seca, Paraíba, Brazil.
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Semirames do Nascimento Silva
  • Semirames do Nascimento Silva
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Polyana Barbosa da Silva
  • Polyana Barbosa da Silva
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Jemima Ferreira Lisboa
  • Jemima Ferreira Lisboa
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Yvana Maria Gomes dos Santos
  • Yvana Maria Gomes dos Santos
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Inacia dos Santos Moreira
  • Inacia dos Santos Moreira
  • Center for Science and Technology, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Wilton Pereira da Silva
  • Wilton Pereira da Silva
  • Center for Science and Technology, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Josivanda Palmeira Gomes
  • Josivanda Palmeira Gomes
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Francisco de Assis Cardoso Almeida
  • Francisco de Assis Cardoso Almeida
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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Bruno Adelino de Melo
  • Bruno Adelino de Melo
  • Center for Technology and Natural Resources, Federal University of Campina Grande, Campina Grande, Paraíba, Brazil.
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  •  Received: 20 March 2019
  •  Accepted: 17 May 2019
  •  Published: 30 May 2019

Abstract

The coated seeds have multiple advantages in relation to the common seeds. In addition to the increase in size and uniformity in their shape, treatment products can be incorporated in them helping the germination process. Against the foregoing, the objective of this work was to evaluate the physiological quality of the colza (Brassica napus L.) seeds coated with bentonite, gypsum and kaolin and treated with fungicide (carboxin+thiram) and plant extract of black pepper (Piper nigrum L.). Colza seeds were encrusted with bentonite, gypsum and kaolin and received or not treatment with fungicide (carboxin + thiram) and aqueous extract of black pepper (Piper nigrum L.) which were added together with the cementing mixture (30% of glue of polyvinyl acetate). Germination was evaluated in three periods (4, 7 and 14 days after sowing). The experiment was organized in a completely randomized design and arranged in a factorial scheme (filling materials × treatment products). The means, when necessary, were compared by the Scott-Knott test (p ≤ 0.05). The seeds coated with gypsum presented the best results for germination and vigor, followed by kaolin and bentonite. The seed coating with gypsum + plant extract presents the same germination and vigor of the seeds without coating.

Key words: Coating, bentonite, physiological response.