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Tropical and Subtropical Agroecosystems
Article . 2017 . Peer-reviewed
License: CC BY
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EVALUATION OF TOLERANCE TO VEGETATIVE ANTRACNOSIS OF NEW MANGO GERMPLASMS IN MEXICO

Authors: Abraham Monteon-Ojeda; Amado Pérez-Rodríguez; José Antonio Mora-Aguilera; José Sergio Sandoval-Islas; Carlos De-León-García-De-Alba; Elías Hernández-Castro; Alfonso Vásquez-López;

EVALUATION OF TOLERANCE TO VEGETATIVE ANTRACNOSIS OF NEW MANGO GERMPLASMS IN MEXICO

Abstract

<p>Anthracnose (<em>Colletotrichum gloeosporioides </em>Penz.) is one of the most important diseases of mango (<em>Mangifera indica </em>L.) due to its wide distribution in the world and to induce severe epidemics in the vegetative and reproductive stages, causing important production losses. The objective of this research was to evaluate the tolerance to <em>C. gloeosporioides</em> infection in the vegetative stage of eleven new mango cultivars in Mexico with potential in the export market. Leaves of 15 days old of development were inoculated with the <em>Gro</em> isolate highlighted in virulence. Based on the incubation, period, incidence and severity, "Alphonse", "Neelum", "Kesar and Ivory” cultivars were low susceptibility, “Nam Doc Mai”, “Rosygold”, “Cotaxtla” were highly susceptible, and "Fairchild", "Ataúlfo Diamante", "Ataúlfo Zafiro" and "Mallika" had medium susceptibility. The longer incubation periods determined the lowest severity (r<sup>2</sup>= -0.89 and -0.90) and incidence (r<sup>2</sup>= -0.77 and -0.85). The incidence correlated positively with severity (r<sup>2</sup>= 0.86 and 0.92), both inoculation techniques (DLT and ALT) were useful to induce typical symptoms of anthracnose and to estimate the expression of virulence (incubation period, incidence and severity) of the pathogen.</p><p> </p><p>La antracnosis (<em>Colletotrichum gloeosporioides</em> Penz.) es una de las enfermedades más importantes del mango (<em>Mangifera indica</em> L.) debido a su amplia distribución en el mundo y por inducir severas epidemias en etapas vegetativas y reproductiva que conllevan a importantes pérdidas de producción. El objetivo de esta investigación fue evaluar la tolerancia a la infección por <em>C. gloeosporioides</em> en etapa vegetativa de once nuevos cultivares de mango en México con potencial en el mercado de exportación. Se inocularon hojas de 15 días de desarrollo con el aislamiento virulento <em>Gro</em>. Basándose en los períodos de incubación, incidencia y severidad, los cultivares "Alphonse", "Neelum", "Kesar e “Ivory" presentaron baja susceptibilidad, "Nam Doc Mai", "Rosygold", y "Cotaxtla" fueron altamente susceptibles mientras que “Fairchild”. “Ataúlfo Diamante”, “Ataúlfo Zafiro” y "Mallika" exhibieron susceptibilidad media. Los períodos de incubación más largos determinaron la menor severidad (r<sup>2</sup> = -0.89 y -0.90) e incidencia (r<sup>2</sup> = -0.77 y -0.85). La incidencia se correlacionó positivamente con la gravedad (r<sup>2</sup> = 0,86 y 0,92), ambas técnicas (DLT y ALT) de inoculación fueron útiles para inducir síntomas típicos de antracnosis y para estimar la expresión de virulencia (período de incubación, incidencia y severidad) del patógeno.</p>

Keywords

S, Agriculture (General), Mangifera indica, severity, Agriculture, Colletotrichum gloeosporioides, susceptibility, S1-972, susceptibility., cultivars, Agrociencias

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
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