Barnyardgrass resistance to quinclorac in paddy rice in Santa Catarina State

Authors

  • Carlos Eduardo Schaedler Faem/UFPel
    • Pedro Valério Dutra de Moraes Faem/UFPel
      • José Alberto Noldin Epagri/Estação Experimental de Itajaí
        • Domingos Sávio Eberhardt Epagri/Estação Experimental de Itajaí

          DOI:

          https://doi.org/10.52945/rac.v21i3.889

          Keywords:

          Paddy rice, Echinochloa, cyhalofop, bispyribac

          Abstract

          Barnyardgrass (Echinochloa spp.) infestation is very high and results in significant yield losses in
          paddy rice in Santa Catarina State. The objective of this study was to evaluate quinclorac resistance of Echinochloa spp. ecotypes in rice fields and to test the susceptibility of these populations to herbicides bispyribac-sodium and
          cyhalofop-butyl. Three barnyardgrass populations were evaluated: ECH 33, ECH 37 and ECH 38, compared to a resistant (ECH 13) and a susceptible (ECH 17) ecotype. The experiment was carried-out in a greenhouse. Herbicide treatments were: quinclorac, cyhalofop-butyl and bispyribac-sodium. The ecotypes ECH 38 and ECH 13 are resistant
          to quinclorac, but ECH 17, ECH 33 and ECH 37 are susceptible. Ecotypes ECH 38 and ECH 13, resistant to
          quinclorac, are controlled by cyhalofop-butyl and bispyribac-sodium.

          Downloads

          Download data is not yet available.

          Downloads

          Published

          2008-02-12

          Issue

          Vol. 21 No. 3 (2008)

          Section

          Scientific article

          License

          Copyright (c) 2008 Revista Agropecuária Catarinense

          Creative Commons License

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

          Creative Commons Attribution 4.0 (CC BY 4.0 - internacional), permite:

          Compartilhar — copiar e redistribuir o material em qualquer meio ou formato para qualquer finalidade, mesmo comercialmente.
          Adaptar — remixar, transformar e desenvolver o material para qualquer propósito, mesmo comercialmente.

          How to Cite

          Barnyardgrass resistance to quinclorac in paddy rice in Santa Catarina State. (2008). Agropecuária Catarinense Journal, 21(3), 68-73. https://doi.org/10.52945/rac.v21i3.889