African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6638

Full Length Research Paper

Priming of Urochloa brizantha cv. Xaraés seeds

Silvia Rahe Pereira
  • Silvia Rahe Pereira
  • Programa de Pós-graduação em Produção e Gestão Agroindustrial, Universidade Anhanguera-Uniderp, Campo Grande, Mato Grosso do Sul, Brasil.
  • Google Scholar
Ana Eliza da Silva Lima
  • Ana Eliza da Silva Lima
  • Fundação Educacional de Andradina, Andradina, São Paulo, Brasil.
  • Google Scholar
Adriana Paula D’Agostini Contreiras-Rodrigues
  • Adriana Paula D’Agostini Contreiras-Rodrigues
  • Universidade Tecnológica Federal do Paraná, Campus Pato Branco, Pato Branco, Paraná, Brasil.
  • Google Scholar
Daiane Rodrigues de Oliveira
  • Daiane Rodrigues de Oliveira
  • Programa de Pós-graduação em Produção e Gestão Agroindustrial, Universidade Anhanguera-Uniderp, Campo Grande, Mato Grosso do Sul, Brasil.
  • Google Scholar
Valdemir Antonio Laura
  • Valdemir Antonio Laura
  • Programa de Pós-graduação em Produção e Gestão Agroindustrial, Universidade Anhanguera-Uniderp, Campo Grande, Mato Grosso do Sul, Brasil.
  • Google Scholar


  •  Received: 24 July 2018
  •  Published: 06 December 2018

Abstract

Priming is one of the several physiological methods used to increase the performance of seeds. To evaluate the effects of priming, seeds of Urochloa brizantha cv. Xaraés were primed under different osmotic potentials (ys = 0.0; -0.5; -1.0 and -1.5 MPa) and temperatures (15 and 25°C) for 24, 48, 96 and 144 h. The germination percentage and germination speed index were evaluated, in a completely randomized design with four replications. It was verified that priming increases percentage and germination speed index of U. brizantha cv. Xaraés seeds cultivar, and these should be primed in water at 25°C  (ys = 0,0 MPa) for 85 h.

Key words: Brachiaria grass, germination, forage seeds.