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Revista Colombiana de Ciencias Hortícolas

Print version ISSN 2011-2173

Abstract

BAUTISTA-MONTEALEGRE, LUIS G. et al. Moko of plantain and its relationship with physical and chemical properties in soils of the department of Quindio, Colombia. rev.colomb.cienc.hortic. [online]. 2016, vol.10, n.2, pp.273-283. ISSN 2011-2173.  http://dx.doi.org/10.17584/rcch.2016v10i2.5066.

ABSTRACT In the department of Quindío (Colombia), the plantain crops have traditionally been the most important products in the economy of the area; it covers more than 50% of the agricultural area and contributes with the 7.2% of the national production. Ralstonia solanacearum bacterium is a causal agent of Moko disease of plantain and it is the most important phytosanitary problem, since 17% of this disease increment in number of affected municipalities, from 2002. In order to contribute to the management of this problem, it was explored the relationship between the incidence of the disease and variables related to physical and chemical properties of soil as well as the soil use and the altitudinal location. For this, 269 farms were studied, by using a stratified sampling design with proportional allocation to the sown area. Soil and leaf tissues were analyzed as well as the symptoms of disease. According to the model results, by ArcGis 9.3 (ESRI®) software, the georeferenced points were interpolated using the technique of inverse distance weighted. The results showed that in 52% of the properties assessed, the disease was detected, and a significant positive correlation was found between the incidence of disease and saturated hydraulic conductivity and soil potassium; conversely, a negative and significant with altitude, foliar copper concentration and location of associated cultivation was also shown.

Keywords : Ralstonia solanacearum; incidence; nutrition; potassium; copper.

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