EXTRATO AQUOSO DE RESÍDUO DO PROCESSAMENTO DE Lentinula edodes NO CONTROLE DE FUNGOS FITOPATOGÊNICOS

Abstract

One of the main costs of agribusiness are the inputs used in phytosanitary control, mainly in disease control. Agribusiness requires alternative solutions with the search for constant inputs, since, mainly, producers can be beneficiaries of these products. Among alternatives is using these aqueous extracts, none of them have substances with antagonistic properties, the objective of this work was to test the efficiency of the aqueous extract of adjustment of these treatments of Lentinula processing and of the processing of fungi, without control of the phytopathogens, Corynespora sp. (cucumber) and Fusarium sp. (lettuce). The extraction was carried out with the basidiomes dehydrated in powder, mixed in distilled water and incubated at 4ºC for 18ºC. After the incubation period, the suspension was filtered, centrifuged and the supernatant type filtered through a Millipore membrane (pore diameter = 0.2µm). The extract obtained was incorporated into the culture medium B.D.A, in the proportions of 0; 1; two; 3 and 4% (v/v) and in the center of each plate a disc of phytopathogenic mycelium was added. The experimental design was in a 2 x 5 factorial scheme (2 fit wasopathogens and 5 were performed), with 6 completely randomized replications. Growth mice and data were selected for analysis of analyzes of analyzes produced by the variance test (5%). According to the results, the aqueous extract of L. e has potential to control these biologicals, especially Fusarium sp., in which it is above 2%.