Disease progress rate and resistance of barley cultivars to brown leaf spot

Authors

  • João Américo Wordell Filho Epagri/Centro de Pesquisa para Agricultura Familiar (Cepaf)
    • Francisco X. Ribeiro do Vale UFV/Departamento de Fitopatologia
      • Ariano M. Prestes Embrapa Trigo
        • Laércio Zambolim UFV/Departamento de Fitopatologia

          DOI:

          https://doi.org/10.52945/rac.v22i2.822

          Keywords:

          Bipolaris sorokiniana, Hordeum vulgare, cultivars, severity

          Abstract

          The disease progress rate and the level of resistance to brown spot was evaluated in barley cultivars.
          The field experiment was carried out at Embrapa Trigo Experimental Station in Coxilha, Rio Grande do Sul, Brazil. Cultivars BR 2, MN 698, Embrapa 128, Embrapa 129, and CI 9539 showed statistical differences from one another regarding reaction to and severity of seed infection by brown spot, based on the scales of Fetch & Steffeson (1999) and Anderson & Banttari (1976), respectively. Cultivars BR 2, Embrapa 128, Embrapa 129, and
          MN 698 showed the greatest increase in the rate of the disease progress, which varied from 2.92 to 3.62 compared to access CI 9539, even though there was no statistical difference (P > 0.05) among those cultivars. Access CI 9539 showed the lowest rate of disease progress (1.17).

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          Published

          2009-12-22

          Issue

          Vol. 22 No. 2 (2009)

          Section

          Scientific article

          License

          Copyright (c) 2009 Agropecuária Catarinense Journal

          Creative Commons License

          This work is licensed under a Creative Commons Attribution 4.0 International License.

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          How to Cite

          Disease progress rate and resistance of barley cultivars to brown leaf spot. (2009). Agropecuária Catarinense Journal, 22(2), 74-77. https://doi.org/10.52945/rac.v22i2.822