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Part of book or chapter of book . 2014 . Peer-reviewed
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Tolerancia genética en melocotonero para el control de la podredumbre parda en postcosecha

Authors: Obi, Vitus Ikechukwu; Barriuso, Juan José; Giménez Soro, Rosa; Agreda, L.; Moreno Sánchez, María Ángeles; Gogorcena Aoiz, Yolanda;

Tolerancia genética en melocotonero para el control de la podredumbre parda en postcosecha

Abstract

El periodo de conservación y la vida comercial del melocotón [Prunus persica (L.) Batsch.] en postcosecha disminuyen debido a enfermedades como la podredumbre parda causada por Monilinia spp. En España, que es el tercer país del mundo productor de melocotón, se pierde rentabilidad por la incidencia de esta enfermedad. En la Unión Europea no se permite ningún fungicida químico en postcosecha en frutales de hueso además de que los tratamientos químicos son ecológicamente poco recomendables. Por ello, la búsqueda de alternativas más sostenibles y duraderas, como el desarrollo de cultivares de melocotonero con tolerancia a esta enfermedad, es prioritario para este sector. El objetivo de este estudio fue evaluar la susceptibilidad/tolerancia a Monilinia laxa (Aderhold y Ruhland) Honey en genotipos de melocotonero pertenecientes al material de mejora y de germoplasma de la Estación Experimental de Aula Dei -CSIC. Se inocularon artificialmente con una cepa de M. laxa varios genotipos descendientes del cruzamiento 'babygold 9' × 'Crown Princess'. Paraevaluar la susceptibilidad a la podredumbre parda se inocularon superficialmente veinte frutos sanos con una suspensión conocida de esporas. Tras la incubación a 23°C durante 6 días, se calculó el porcentaje de incidencia de la enfermedad, la extensión de la colonización y de la lesión, así como parámetros de calidad de fruto. Se encontraron diferencias significativas entre genotipos para la incidencia de la podredumbre parda (IBR), la extensión de la colonización y el diámetro de la lesión. Se discutirán también las correlaciones encontradas entre el contenido en compuestos fenólicos y la incidencia de la enfermedad y severidad de la lesión en esta población. Las diferencias de tolerancia o susceptibilidad a la podredumbre parda confirman la existencia de variabilidad genética que será de gran utilidad en los programas de mejora de melocotonero que se llevan a cabo en la Estación Experimental de Aula Dei-CSIC.

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selected citations
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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).
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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.
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