Nematodos fitoparásitos asociados al arroz en las regiones Huetar Norte y Huetar Atlántica de Costa Rica.

Tomás de Jesús Guzmán-Hernández; Silvia Hernández-Villalobos; Ingrid Varela-Benavides; Joaquín Durán-Mora; Wayner Montero-Carmona

doi:10.15517/am.v22i1.8662

Rice plant parasitic nematodes in the Northern and Atlantic Regions of Costa Rica.

Authors

Tomás de Jesús Guzmán-Hernández Instituto Tecnológico de Costa Rica
Silvia Hernández-Villalobos Instituto Tecnológico de Costa Rica, Laboratorio de Nematodos
Ingrid Varela-Benavides Instituto Tecnológico de Costa Rica, Laboratorio de Nematodos
Joaquín Durán-Mora Instituto Tecnológico de Costa Rica
Wayner Montero-Carmona Instituto Tecnológico de Costa Rica

DOI:

https://doi.org/10.15517/am.v22i1.8662

Keywords:

Meloidogyne, Pratylenchus, population dynamics, evaluative scales.

Abstract

The objective of this stud ywas to identify the plant parasitic nematodes associated with the rice crop in the Northern and Atlantic regions of Costa Rica. Population growth of the main genuses was described and quantified using mathematical models, for which tables of incidence were constructed. A total of 14 rice fields in the Northern region and 15 rice fields in the Atlantic region were sampled between 2006 and 2009. Nematodes from soil and roots were extracted, then numbers of nematodes of each plant-feeding genus were counted. Pratylenchus was the genus with the greatest population density in the Northern region(17 024 individuals/100 g of root) followed by Meloidogyne(10 343 individuals/100 g of root). In the Atlantic Region the genus with the greatest population density was Meloidogyne(18 806 individuals/100 g of root) followed by Pratylenchus(8535 individuals/100 g of root). Other genera identified in the samples were Helicotylenchus, Tylenchorhynchus,Tylenchus and Criconemoides. The mathematical model thatbest represented the population of Pratylenchus was linear(R2 = 0.99), while the population growth of Meloidogynefitted an exponential model (R2 = 0.91)

Downloads

Download data is not yet available.

Downloads

PDF (Español (España))

How to Cite

Guzmán-Hernández, T. de J., Hernández-Villalobos, S., Varela-Benavides, I., Durán-Mora, J., & Montero-Carmona, W. (2011). Rice plant parasitic nematodes in the Northern and Atlantic Regions of Costa Rica. Agronomía Mesoamericana, 22(1), 21–28. https://doi.org/10.15517/am.v22i1.8662

Download Citation

Issue

2011: Agronomía Mesoamericana: Vol. 22, Issue 1 (January-June)

Section

Articles

License

1. Proposed policy for open access journals

Authors who publish in this journal accept the following conditions:

a. Authors retain the copyright and assign to the journal the right to the first publication, with the work registered under the attribution, non-commercial and no-derivative license from Creative Commons, which allows third parties to use what has been published as long as they mention the authorship of the work and upon first publication in this journal, the work may not be used for commercial purposes and the publications may not be used to remix, transform or create another work.

b. Authors may enter into additional independent contractual arrangements for the non-exclusive distribution of the version of the article published in this journal (e.g., including it in an institutional repository or publishing it in a book) provided that they clearly indicate that the work was first published in this journal.

c. Authors are permitted and encouraged to publish their work on the Internet (e.g. on institutional or personal pages) before and during the review and publication process, as it may lead to productive exchanges and faster and wider dissemination of published work (see The Effect of Open Access).