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Vol. 14 No. 2 (2023)
Published 2023-06-20
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Área Agrícola

Epidemiological study of Rhizoctonia solani Kühn in five commercial genotypes of potato (Solanum tuberosum L.) from Nariño

DOI: https://doi.org/10.22490/21456453.6353
Jessica Descanse Universidad de Nariño
Carlos Betancourth Universidad de Nariño
Claudia Salazar Universidad de Nariño
Benjamin Sañudo Universidad de Nariño
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Context: the potato crop, in Nariño, presents a significant number of commercial varieties, but diverse phytosanitary problems [like the pathogen R. solani Kühn] affect its production and yield.

Knowledge gap: there is no information, in the department of Nariño, about the attack of this phytopathogen to different potato genotypes.

Purpose: the objective of this research was to determine the damage caused by black scurf [R. solani Kühn] on five commercial potato varieties in the department of Nariño.

Methodology: in three potato producing municipalities of the department of Nariño [Ipiales, Pasto and Túquerres], using a Randomized Complete Block Design [with four replications and five treatments] were evaluated these variables: Incidence on emergence and sprouting, incidence on harvest, and Commercial yield.  Finally, it was carried out an analysis of variance, using Tukey’s comparison tests.

Results and Conclusions: in the locality of Túquerres, the highest percentage of incidence in emergence and sprouting was obtained [36.04 %], with statistical differences in comparison to the localities of Pasto [30.70 %] and Ipiales [31.98 %]. For the harvest incidence variable, the Roja Huila genotype [in Túquerres] was the most affected, reaching an incidence percentage of 19.94 %. Finally, in the evaluation of commercial Yield, the Superior genotype [in Pasto] presented the best performance, with an average of 22.37 t/ha.

keywords: potato varieties, pathogen, productivity, susceptibility
license

Copyright (c) 2023 Revista de Investigación Agraria y Ambiental

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

When RIAA receives the postulation of an original by its author, either through email or post mail, considers that it can be published in physical and/or electronic format and facilitates its inclusion in databases, newspaper archives and other systems and indexing process. RIAA authorizes the reproduction and citation of the Journal’s material, provided that explicitly indicates journal name, the authors, the article title, volume, number and pages. The ideas and concepts expressed in the articles are responsibility of the authors and in no case reflect the institutional policies of the UNAD.

How to Cite
Descanse, J., Betancourth, C., Salazar, C., & Sañudo, B. . (2023). Epidemiological study of Rhizoctonia solani Kühn in five commercial genotypes of potato (Solanum tuberosum L.) from Nariño. Revista De Investigación Agraria Y Ambiental, 14(2), 73-89. https://doi.org/10.22490/21456453.6353
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