SciELO - Scientific Electronic Library Online

 
vol.34 issue1Frequencies and population densities of plant-parasitic nematodes on banana (Musa AAA) plantations in Ecuador from 2008 to 2014Temporal shifts of nitrite reducing communities in a rice field soil in Ibague (Colombia) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Agronomía Colombiana

Print version ISSN 0120-9965

Abstract

AVILA-DIAZGRANADOS, Rodrigo Andrés; DAZA, Edison Steve; NAVIA, Edwin  and  ROMERO, Hernán Mauricio. Response of various oil palm materials (Elaeis guineensis and Elaeis oleifera × Elaeis guineensis interspecific hybrids) to bud rot disease in the southwestern oil palm-growing area of Colombia. Agron. colomb. [online]. 2016, vol.34, n.1, pp.74-81. ISSN 0120-9965.  https://doi.org/10.15446/agron.colomb.v34n1.53760.

Palms planted in an area with a high bud rot disease (BR) inoculum pressure were evaluated monthly for a six-year period to determine their tolerance, resistance, or susceptibility to the disease. Dura-type E. guineensis and OxG (E. oleifera × E. guineensis) interspecific hybrids Coari × La Me were evaluated. Of the two types of genetic material evaluated, the progenies of the E. guineensis palms showed the highest levels of incidence, reaching 90% affected palms in less than two years of evaluation. Although the hybrids showed susceptibility, they had a lower degree of affectation than the dura-type palms. The severity assessment of both genetic materials showed that the dura-type palms had the highest degree of affectation, reaching the highest values after over two years of evaluation. However, the hybrids, which were not homogeneous in terms of the level of severity, did not exceed, on average, severity level 2. According to the scale, severity level 2 is indicative of tolerance to the disease.

Keywords : Phytophthora palmivora; disease tolerance; epidemiology; field experimentation; cultivar selection; oil crops.

        · abstract in Spanish     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License