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Scientia Agropecuaria

Print version ISSN 2077-9917


JARAMILLO AGUILAR, Edwin; BARREZUETA-UNDA, Salomon; LUNA ROMERO, Eduardo  and  CASTILLO HERRERA, Sara. In vitro evaluation of the Aloe vera gel on Mycosphaerella fijiensis, causative agent of black Sigatoka disease in Musa (AAA). Scientia Agropecuaria [online]. 2017, vol.8, n.3, pp.273-278. ISSN 2077-9917.

The aim of this study was to evaluate in vitro antifungal activity of Aloe vera gel on mycelial growth of Mycosphaerella fijiensis. Poisoning technique was used in PDA growth medium to for determine antifungal activity of gel. The design used was completely random, with seven treatments and three repetitions. In treatments, it was used a commercial fungicide (propiconazole), 250 ppm and 500 ppm; a commercial biofungicide (Trichoderma sp.) at 500 ppm and 1000 ppm; both products were used as chemical and biological control, respectively; Aloe vera gel 500 ppm and 1000 ppm; and an absolute control. significant differences were detected in treatments (ANOVA), Tukey test showed that all treatments registered significant difference (p ≤ 0.05) with respect to absolute control. Propiconazole had the highest inhibition Percentage of mycelium (73.10%), The Tukey test and inhibition percentage of mycelium demonstrated similar values in the control of the fungus growth in the 30 days of the inoculation, in the Aloe vera gel treatments and the T6 Trichoderma sp. The results suggest that Aloe vera could be a suitable biofungicide to control Mycosphaerella fijiensis, causative agent of black Sigatoka.

Keywords : Aloe vera gel; Mycosphaerella fijiensis; Musa (AAA); propiconazole; Trichoderma sp.

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