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Corn, the main crop in Argentina, is normally harvested and stored in silo bags above the safe storage moisture content for 3-6 months, and faces high risk of quality losses. The evaluation of fungicidal/fungistatic products that could potentially be used to protect wet grain stored in silo bags, has not been widely studied. Thus, the objective of this study was to make a preliminary in-vitro comparative evaluation of four different fungicidal treatments
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dc.contributor.author | Alvarez, Estefanía | |
dc.contributor.author | Cardoso, Marcelo Leandro | |
dc.contributor.author | Bartosik, Ricardo Enrique | |
dc.contributor.author | Castellari, Claudia Carla | |
dc.contributor.author | De La Torre, Diego | |
dc.contributor.author | Erreguerena, Ignacio Antonio | |
dc.contributor.author | Abadia, María Bernadette | |
dc.date.accessioned | 2021-10-14T11:00:29Z | |
dc.date.available | 2021-10-14T11:00:29Z | |
dc.date.issued | 2021-08 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/10485 | |
dc.description.abstract | Corn, the main crop in Argentina, is normally harvested and stored in silo bags above the safe storage moisture content for 3-6 months, and faces high risk of quality losses. The evaluation of fungicidal/fungistatic products that could potentially be used to protect wet grain stored in silo bags, has not been widely studied. Thus, the objective of this study was to make a preliminary in-vitro comparative evaluation of four different fungicidal treatments in corn: 1) propionic acid (3 L/t); 2) a quaternary ammonium compound (3 L/t, diluted 1:25 with water); 3) sulfur dioxide (initial dose: 15% v/v); 4) phosphine (initial dose: 6.6 g/m3) along with their respective controls (non-treated). In treatments 1 and 2 (liquids) corn was sprayed with the product and then stored in a sterilized glass jar. In treatment 3, sulfur dioxide was injected into a previously sealed glass jar. In treatment 4, glass jars were placed inside a plastic drum of 60 L capacity with two aluminum phosphide tablets (0.2 g phosphine each) and closed. Both liquids and the phosphine treatments had an exposure time of 15 d (at 25 ± 1°C), while in the sulfur dioxide treatment, three exposure times were evaluated (5 min, 5 and 24 h, all at the same temperature). After the various treatments, the fungal biota (molds and yeasts) was evaluated. The results showed that the propionic acid treatment achieved a total control of fungal biota. Treatment with sulfur dioxide showed a reduction of 2-3 log10 (CFU/g DM) compared to non-treated samples. Finally, the quaternary ammonium compound and phosphine treatments only achieved a reduction in the number of colonies of 1 log10 (CFU/g DM). Based on the results of this study, propionic acid seems to be a good solution for improving the storability of wet corn in silo bags. Nevertheless, more information should be generated at laboratory and full scales. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | University of Manitoba, Canadá | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.source | Proceedings of the 11th International Conference on Controlled Atmosphere and Fumigation in Stored Products. Canadá, 22-27 august de 2021 | es_AR |
dc.subject | Granos | es_AR |
dc.subject | Grain | eng |
dc.subject | Fungicidas | es_AR |
dc.subject | Fungicides | eng |
dc.subject | Ácido Propiónico | es_AR |
dc.subject | Proponic Acid | eng |
dc.subject | Dióxido de Azufre | es_AR |
dc.subject | Sulphur Dioxide | eng |
dc.subject | Fosfina | es_AR |
dc.subject | Fosfin | eng |
dc.subject | Hongos | es_AR |
dc.subject | Fungi | eng |
dc.title | Evaluation of fungicidal action of four products on external fungal biota of grains. | es_AR |
dc.type | info:ar-repo/semantics/documento de conferencia | es_AR |
dc.type | info:eu-repo/semantics/conferenceObject | es_AR |
dc.type | info:eu-repo/semantics/acceptedVersion | es_AR |
dc.description.origen | EEA Balcarce | es_AR |
dc.description.fil | Fil: Alvarez, Estefanía. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. | es_AR |
dc.description.fil | Fil: Cardoso, Leandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. | es_AR |
dc.description.fil | Fil: Bartosik, Ricardo Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. | es_AR |
dc.description.fil | Fil: Bartosik, Ricardo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. | es_AR |
dc.description.fil | Fil: Castellari, Claudia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: De la Torre, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. | es_AR |
dc.description.fil | Fil: Erreguerena, Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. | es_AR |
dc.description.fil | Fil: Abadía, María Bernadette. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. | es_AR |
dc.subtype | ponencia |
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