Search Results - Douglas, Johnson E.

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  1. Cover Image

    Programas de semillas: guía de planeación y manejo by Douglas, Johnson E.

    Published 1982
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    Libro
  2. Cover Image

    Practices used by small farmers in selecting and maintaining their own seed by Douglas, Johnson E.

    Published 1982
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    Conference Paper
  3. Cover Image

    Certificación de semillas: su papel y componentes esenciales by Douglas, Johnson E.

    Published 1979
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    Informe técnico
  4. Cover Image

    Una estrategia nacional de capacitación en semillas para acelerar el desarrollo de un programa by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  5. Cover Image

    Legislación sobre semillas by Douglas, Johnson E.

    Published 1974
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    Informe técnico
  6. Cover Image

    Organizing and operating a seed certifying authority by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  7. Cover Image

    The CIAT Seed Unit : achievements and expectations by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  8. Cover Image

    Seed certification : its role and essential components by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  9. Cover Image

    Maneras de asegurar un suministro adecuado de semilla certificada y comercial by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  10. Cover Image

    Organización y operación de una autoridad de certificación de semillas by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  11. Cover Image

    Policies: their impact on the seed program by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  12. Cover Image

    Políticas: su impacto en el programa de semillas by Douglas, Johnson E.

    Published 1983
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    Informe técnico
  13. Cover Image

    Elementos esenciales para el éxito de un programa de semillas by Douglas, Johnson E.

    Published 1979
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    Book Chapter
  14. Cover Image

    Mejoramiento de la semilla de sorgo sembrada por los pequeños agricultores by Douglas, Johnson E.

    Published 1982
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    Book Chapter
  15. Cover Image

    A profile of the seed industry in Latin America by Douglas, Johnson E., Garay, AE

    Published 1987
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    Libro
  16. Cover Image

    Cómo se inspecciona un campo semillero?: metodología de muestreo by Douglas, Johnson E., Garay, AE

    Published 1980
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    Conference Paper
  17. Cover Image

    Producción y beneficio de semilla certificada de arroz by González Franco, Joaquín, Douglas, Johnson E., Arregocés, Oscar

    Published 1981
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    Manual
  18. Cover Image

    Producción y beneficio de semillas certificada de arroz by González Franco, Joaquín, Douglas, Johnson E., Arregocés, Oscar

    Published 1983
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    Journal Article
  19. Cover Image

    Control y normas de calidad de las semillas certificadas de arroz by Arregocés, Oscar, Douglas, Johnson E., González Franco, Joaquín, Marroquin, AD

    Published 1980
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    Libro
  20. Cover Image

    Elementos esenciales para el éxito de un programa de semillas by Douglas, Johnson E., Poey Diago, Federico Raúl, Robayo Vanoy, G, Arregocés, Oscar

    Published 1981
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    Manual

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