Antecedents/Objectives.

Guerrero is an important producer of roselle (Hibiscus sabdariffa); therefore, the objective was to evaluate the inhibitory effect of resins in vitro using four factors: technique (disc in agar or Kirby Bauer and well in agar), resins (B. linanoe, J. curcas, mixture of both and Thiabendazole), volume (10, 20 and 30 µL) and phytopathogenic fungi (C. cassiicola, F. oxysporum and F. solani) on the diameter of the inhibition halo.

Materials and Methods.

Statistical analysis was performed with a completely randomized factorial design with fixed effects to compare the 72 treatments using the Kruskal-Walis test.

Results.

All terms were found to be significant, the main effects of technique, resins, volume and fungi on the diameter of the inhibition halo, but also the double, triple and quadruple interactions.

Conclusion.

B. linanoe resin showed higher inhibition for C. cassiicola and F. oxysporum, in the two techniques (agar well and agar disc technique or Kirby Bauer technique), this makes it the resin type with the highest biocontrol potential.

Materiales y Métodos.

El análisis estadístico se realizó con un diseño factorial completamente al azar de efectos fijos para comparar los 72 tratamientos se usó la prueba de Kruskal-Walis.

Resultados.

Se encontró que todos los términos fueron significativos, los efectos principales de técnica, resinas, volumen y hongos en el diámetro del halo de inhibición, pero también las interacciones dobles, triples y cuádruples.

Conclusión.

La resina de B. linanoe mostró mayor inhibición para C. cassiicola y F. oxysporum, en las dos técnicas (técnica de pozo en agar y disco en agar o técnica Kirby Bauer), esto la convierte en el tipo de resina con mayor potencial biocontrolador.

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