In Vitro Inhibition of Curvularia eragrostidis by the Antagonistic Fungi Trichoderma spp. and Acremonium cephalosporium
Journal Title: International Journal of Agriculture Innovations and Research - Year 2018, Vol 6, Issue 6
Abstract
Yam (Dioscorea cayennensis Lam.) Plantations in the Brazilian Northeast are severely attacked by the disease known as foliar burning or black-spotted, whose etiological agent is the fungus Curvularia eragrostidis. Under favorable epidemiological conditions, this disease, characterized mainly by necrotic spots on the leaves, can seriously compromise production. The alternative control of plant diseases aims at the use of alternative and effective means that minimize the costs with the use of fungicides. Within this type of control is associated the use of antagonistic microorganisms with deleterious action in some types of pathogens. The objective of this work was to evaluate the efficiency of the in vitro control of Curvularia eragrostidis, which causes the black pin of the yam, through the use of the antagonists Trichoderma spp. and Acremonium cephalosporium. The experiment was conducted at the Center of Agricultural Sciences of the Federal University of Alagoas. The experimental design was completely randomized using 05 treatments and 04 replicates. The treatments analyzed were followed by pairing of an isolate of Curvularia eragrostidis with 04 isolates of Trichoderma spp. and 01 isolated from Acremonium cephalosporium. For comparison of means the Scott-Knott's test was applied at a 5% probability level. It can be verified that the isolates of Trichoderma spp. were more efficient in inhibiting in vitro growth of the pathogen analyzed when compared to the other treatments.
Authors and Affiliations
Felipe Alexandre Tenório, et al.
Keywords
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