SCS121 CL and SCS122 Miura: risks and opportunities in the adoption of irrigated rice cultivars in Santa Catarina

Published 2017-10-06

Authors

  • Rubens Marschalek
    Epagri/Estação Experimental de Itajaí (EEI)
  • Domingos Savio Eberhardt
    Epagri - E.E.Itajaí (aposentado)
  • Klaus Konrad Scheuermann
    Epagri/E.E.Itajaí
  • José Alberto Noldin
    Epagri/E.E.Itajaí
  • Alexander de Andrade
    Epagri/E.E.Itajaí
  • Ester Wickert
    Epagri/E.E.Itajaí
  • Donato Lucietti
    Epagri - Coordenador Est. do Prog. Grãos – Extensão
  • Douglas George de Oliveira
    Epagri – G. R. Araranguá, Prog. Grãos – Extensão
  • Hector Silvio Haverroth
    Epagri – G. R. Joinville, Programa Grãos - Extensão

Abstract

Nowadays, one of the 22 irrigated rice cultivars released by Epagri for  Santa Catarina, the SCS121 CL, has an hegemonic predominance in the rice fields of the State. Biologic and strategically, this is of great concern for the State’s rice production because it constitutes a risk for the Clearfield (CL) rice production system. Besides, it means an intense selection pressure even in the phytosanitary area, especially regarding blast. The rapid adoption of SCS121 CL is due to its good yield, unquestionable and easy weed management (also allowing the sow in drained soil), and its tolerance to blast. In this way, it is often used, in situations out of its purpose, which is the control of weedy rice. Data from field experiments and demonstration units indicate that there are cultivars with higher yield than the SCS121 CL and, therefore, they are good options for fields not infested with weedy rice. In this sense, one good option is the brand new cultivar SCS122 Miura.

Author Biographies

  • Rubens Marschalek
    Engenheiro agrônomo, Dr.
    • Domingos Savio Eberhardt

      Engenheiro agrônomo, M.Sc.

      • Klaus Konrad Scheuermann
        Engenheiro agrônomo, Dr.
        • José Alberto Noldin
          Engenheiro agrônomo, Dr.
          • Alexander de Andrade
            Engenheiro agrônomo, Dr.
            • Ester Wickert
              Engenheira agrônoma, Dra.
              • Donato Lucietti
                Engenheiro Agrônomo, Esp.
                • Douglas George de Oliveira
                  Engenheiro Agrônomo
                  • Hector Silvio Haverroth
                    Engenheiro Agrônomo

                    Metrics

                    935
                    Views
                    807
                    Downloads

                    Keywords

                    • plant breeding
                    • Oryza sativa L.
                    • rice blast
                    • Clearfield system
                    • yield
                    • ALS inhibitors
                    • imidazolinone
                    • weedy rice
                    • herbicide.