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Breeding And Agronomic Performance Of Corn Cultivars And Hybrids During The Past Five Years In Puerto Rico

Author

Listed:
  • Quiles-Belén, A.
  • Sotomayor-Ríos, A.
  • Torres-Cardona, S.

Abstract

Corn research activities conducted at the Tropical Agriculture Research Station (TARS), USDA·ARS, Mayaguez, Puerto Rico during the past five years are reported. The breeding programme utilizing recurrent selection has been successful in improving local and temperate zone populations. Progress has been made in transferring desirable genes to the local sweetcorn cultivar Suresweet. Numerous corn introductions from Central America and other tropical countries have been evaluated and high yielding selections identified for further studies. Based on numerous field studies, yields of over 8,000 kg ha-1 can be expected utilizing superior commercial hybrids under intensive management with the application of up to 120 kg N ha-1 at a population density of over 40,000 plants ha-1. ----- Este es un informe de investigacid'n del maiz, llevado a cabo durante los tlltimos cinco anos, en 1a Estaci6n de Investigacion de Agricultura Tropical (TARS), USDA-ARS en Mayaguez, Puerto Rico. EI programa de mejoramiento, de selecci6n reciproca-contigua, ha sido exitosa en cuanto se refiere al mejoramiento de poblaciones criolla y de la zona templada. Se hicierdn avanzes en el transferimiento de genes, beneficiosos para la variedad criolla de choclo, Suresweet. Numerosas introducciones de maiz de America Central y de otros paises tropicales han sido evaluadas y selecciones de alto rendimiento fueron identi ficadas para llevar a cabo estudios mas amplios. Basados en estudios de campo es posible obtener rendimientos mayores de 8000 kg/ha, utilizando htbridos comercial es superiores, llevados a cabo bajo un manejo intensivo, con aplicaciones de hasta unos 120/kg/N/ha y con una poblacidn de mas de 40,000 plantas/ha.

Suggested Citation

  • Quiles-Belén, A. & Sotomayor-Ríos, A. & Torres-Cardona, S., 1985. "Breeding And Agronomic Performance Of Corn Cultivars And Hybrids During The Past Five Years In Puerto Rico," 21st Annual Meeting, September 8-13, 1985, Port of Spain, Trinidad and Tobago 261456, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs85:261456
    DOI: 10.22004/ag.econ.261456
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