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espanolDue to market demand, in the producing regions of Mexico the dominant variety is Maradol, in different fruit quality levels, since the type of seed used varies from the original F1, to descendent selections identified as F2 to F5. The above, leads to a genotypic degeneration and segregation. In this way it is necessary an adequate selection of parents and controlled pollination for seed production, and that is adapted to the region of interest. Therefore, the objective was to select outstanding papaya plants adapted to the production area of Michoacan. Through field explorations in commercial plots, papaya plants of the Maradol hermaphrodite type and with outstanding characteristics were identified and characterized. In the plants, flower buds were selected and covered to induce self-pollination. The fruits were collected in the maturity stage and the seeds were obtained. Morphological variables of plant and fruit, health and germination were recorded. 12 orchards presented outstanding plants. The characterization of the progress in the development of floral bud to fruits was variable, since the amount of fruits formed in relation to the buds covered initially was reduced, as well as, it reduced the amount of fruits collected in relation to the fruits formed. Regarding phytosanitary status, the presence of viruses, mites and other insects was recorded in most of the registered orchards. The germination was acceptable. It was concluded that selected papaya plants were identified and characterized based on outstanding characteristics and adapted to the production area of Michoacan, for further improvement study. MultiplePor la demanda del mercado, en las regiones productoras de Mexico la variedad dominante es la Maradol, en diferentes niveles de calidad de fruta, ya que el tipo de semilla que se utiliza varia desde las originales F1, hasta selecciones descendientes identificadas como F2 a F5. Lo anterior, conlleva a una degeneracion y segregacion genotipica. De esta manera es necesaria una adecuada seleccion de progenitores y polinizacion controlada para la produccion de semilla, y que este adaptada a la region de interes. Por ello, el objetivo fue seleccionar plantas de papaya sobresalientes y adaptadas a la zona productora de Michoacan. Mediante exploraciones de campo en parcelas comerciales, se identificaron y caracterizaron plantas de papaya del tipo Maradol hermafroditas y con caracteristicas sobresalientes. En las plantas se seleccionaron botones florales y fueron cubiertos para provocar la autopolinizacion. Los frutos se colectaron en etapa de madurez y se obtuvieron las semillas. Se registraron variables morfologicas de planta y frutos, sanidad y germinacion. 12 huertas presentaron plantas sobresalientes. La caracterizacion del progreso en el desarrollo de boton floral a frutos fue variable, pues se redujo la cantidad de frutos formados con relacion a los botones cubiertos inicialmente, asi como tambien, redujo la cantidad de frutos colectados en relacion con los frutos formados. En cuanto al estado fitosanitario, se registro la presencia de virus, acaros y otros insectos en la mayoria de las huertas registradas. La germinacion fue aceptable. Se concluyo que se identificaron y caracterizaron plantas de papaya seleccionadas con base a caracteristicas sobresalientes y adaptadas a la zona productora de Michoacan, para posterior estudio de mejoramiento.

Selección de plantas de papaya sobresalientes en ambientes comerciales con fines de mejoramiento