Eficacia de Trichoderma sp. y Bacillus subtilis como agentes de control biológico contra Pseudocercospora fijiensis en el cultivo del plátano (Musa × paradisiaca)

Autores/as

DOI:

https://doi.org/10.70881/mcj/v4/n2/145

Palabras clave:

Biocontrol, germinación de ascosporas, incidencia, metabolitos, crecimiento radial

Resumen

Este estudio evaluó la eficacia de Trichoderma sp. y Bacillus subtilis como agentes de biocontrol contra Pseudocercospora fijiensis, el hongo responsable de la Sigatoka Negra en banano (Musa × paradisiaca). Bajo condiciones de laboratorio, se evaluó la inhibición de la germinación de ascosporas y el crecimiento radial mediante la aplicación de metabolitos de Trichoderma sp. y B. subtilis en concentraciones de 5% y 10%. A una concentración de 10%, B. subtilis logró una inhibición del 100% de la germinación de ascosporas y una reducción del 90% en el crecimiento radial de P. fijiensis, superando a Trichoderma, que logró una inhibición del 60% en ambas pruebas a la misma concentración. En ensayos de invernadero, se midió la incidencia y severidad de la enfermedad en plántulas de banano Cavendish inoculadas con P. fijiensis y tratadas con aplicaciones foliares semanales de los agentes de biocontrol. Con una concentración del 10 %, B. subtilis redujo la gravedad de la enfermedad al 10 %, mientras que Trichoderma, al 10 %, logró una reducción del 30 % en la gravedad, en comparación con el control, que mantuvo una gravedad constante de alrededor del 81 %. Estos resultados resaltan el potencial de B. subtilis como un potente agente de biocontrol contra P. fijiensis, ofreciendo una alternativa sostenible y eficaz para el manejo de la Sigatoka Negra en sistemas agrícolas, reduciendo así la dependencia de fungicidas químicos y promoviendo prácticas de cultivo respetuosas con el medio ambiente

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Publicado

2026-04-15

Cómo citar

Cedeño Moreira, A. V., López Cedeño, K., Morejón Centeno, M. R., Torres Rodríguez, J. A., Arellano Ibarra, K. V., Alejandre Rosas, J. A., & Alvarado Mávil, A. (2026). Eficacia de Trichoderma sp. y Bacillus subtilis como agentes de control biológico contra Pseudocercospora fijiensis en el cultivo del plátano (Musa × paradisiaca). Multidisciplinary Collaborative Journal, 4(2), 1-15. https://doi.org/10.70881/mcj/v4/n2/145

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