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Comparación de métodos de inoculación de Fusarium solani f. sp. passiflorae en plántulas de maracuyá (Passiflora edulis f. flavicarpa)

Comparison of methods of inoculation of Fusarium solani f. sp. passiflorae in seedlings of passion fruit (Passiflora edulis f. flavicarpa)
Authors: Ángel-García, Carolina; Robledo-Buriticá, Jacobo; Castaño-Zapata, Jairo;

Comparación de métodos de inoculación de Fusarium solani f. sp. passiflorae en plántulas de maracuyá (Passiflora edulis f. flavicarpa)

Abstract

El maracuyá es una especie susceptible a patógenos, como Fusarium solani f . sp . passiflorae, causante de la secadera, llegando a causar pérdidas entre 90 y 100%, en cultivos comerciales en Colombia . Debido al desconocimiento de un método de inoculación eficiente para evaluar germoplasma de maracuyá contra este patógeno, se planteó este estudio, cuyo objetivo fue comparar cuatro métodos de inoculación de F. solani f . sp . passiflorae MViRi01 en plántulas de maracuyá (Passiflora edulis f . flavicarpa), cultivadas a 29°C, con un fotoperiodo de 12h . Los tratamientos fueron: incisión en el tallo (T1), inmersión de raíces (T2), inyección en el tallo (T3) y cribado en tubos de ensayo modificado (T4) . Se estimó la incidencia de la enfermedad y el periodo de incubación del hongo . Los métodos evaluados mostraron diferencias altamente significativas (P<0,001) . F. solani f . sp . passiflorae infectó raíces, tallo y hojas, causando estrangulamiento ascendente y descendente del tallo . Se obtuvo 100% de incidencia de la enfermedad con los tratamientos T1 (incisión) y T4 (cribado) . En T4, el periodo de incubación del hongo fue 2,4 días y en T2 (inmersión), de 19 días . La muerte de las plántulas ocurrió 12 días después de inocular los tratamientos T1 y T3 (inyección) . La emisión de raíces adventicias en las plántulas se indujo inyectando el patógeno (T3) . Los métodos apropiados para inocular Fusarium sp . en plántulas de maracuyá fueron el cribado en tubos de ensayo modificado y la incisión en el tallo, debido a la homogeneidad en los resultados y la replicabilidad .

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Keywords

colonización, Medicine (General), QH301-705.5, Agriculture (General), Nectria haematococca, patogenicidad, colonization, S1-972, R5-920, pathogenicity, incubación de enfermedades, Biology (General), disease incubation

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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!
9
Average
Average
Top 10%
Green
gold