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Survival of soilborne plant pathogenic fungi in soil solarization simulation (microcosm) associated with the incorporation of organic materials

Soilborne phytopathogenic fungi can survive for several years in Laboratory) and five periods (0, 7, 14, 21 and 28 days) to evaluate soil through resistance structures and it causes losses in several crops the survival of four soil fungi (Fusarium oxysporum f. sp. lycopersici making unfeasible vast agricultural areas. Organic materials associated race 2; Macrophomina phaseolina; Rhizoctonia solani AG-4 HGI with soil solarization helps the retention of volatile fungitoxic and Sclerotium rolfsii). A nylon bag containing structures of each compounds from the degradation of materials which are lethal to pathogen was placed in each one of the two glass cameras (microcosm) several soil fungi. The objective of this experiment was to search for for each evaluated period. Structures of the fungi were also maintained new organic materials that produce volatile fungitoxic compounds in laboratory conditions as the check treatment. All materials when capable to control the resistance structures produced by the soilborne associated the simulation of the soil solarization gave the best control phytopathogenic fungi but in conditions of association with simulation of the structures of all the studied soilborne phytopathogenic fungi. of soil solarization (microcosm). The present work consisted of six However, variation was observed in the control of the fungi. The treatments (Solarization; Solarization+brocollis; Solarization + treatment which only simulated the solarization did not control any eucalyptus; Solarization+castor plants; Solarization + cassava and fungus.

alternative control; accelerated fermentation; soilborne phytopathogenic fungi; resistance structures


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