Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content
Understanding microbial development under the typical storage conditions of maize seeds is crucial for maintaining seed quality and ensuring successful crop establishment. In this study, the respiration and microbial growth of yellow-dent maize seeds stored at 12%, 13%, and 14% moisture content (cor...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/17762 https://www.sciencedirect.com/science/article/pii/S0022474X23001352 https://doi.org/10.1016/j.jspr.2023.102209 |
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| author | Abadia, María Bernadette Castellari, Claudia Monterubbianesi, María Cecilia Bartosik, Ricardo Enrique |
| author_browse | Abadia, María Bernadette Bartosik, Ricardo Enrique Castellari, Claudia Monterubbianesi, María Cecilia |
| author_facet | Abadia, María Bernadette Castellari, Claudia Monterubbianesi, María Cecilia Bartosik, Ricardo Enrique |
| author_sort | Abadia, María Bernadette |
| collection | INTA Digital |
| description | Understanding microbial development under the typical storage conditions of maize seeds is crucial for maintaining seed quality and ensuring successful crop establishment. In this study, the respiration and microbial growth of yellow-dent maize seeds stored at 12%, 13%, and 14% moisture content (corresponding to 65%, 70%, and 75% relative humidity, respectively) and 25 °C were investigated. Two maize seed lots (hybrids KM4500 and KM4580) with different initial fungal loads were used in the experiments. To calculate the respiration rates, seeds were stored in hermetically closed jars and the oxygen and carbon dioxide concentrations were monitored for 180 days. The microbial load (colony forming units and percentage of infected seeds) was measured prior and after storage at the three humidity levels. At 65% and 70% relative humidity, respiration rates were close to zero in both seed lots, indicating minimal microbial activity. However, at 75% relative humidity, respiration rates showed a bell-shaped pattern, suggesting the onset of microbial activity in both seed lots. The seed lot with higher initial fungal load (KM4500) presented a higher respiration rate. The microbial load decreased at 65% and 70% relative humidity and the decreasing trend reverted at 75% relative humidity. This work indicates that 70% relative humidity is a safe storage moisture to prevent microbial activity at 25 °C in the studied yellow-dent maize seeds, independently of their initial fungal load. Hermetic storage, also, would make sense for seed storage only above 75% r.h. (14% m.c.) This study provides valuable insight for preserving seed quality during long-term commercial storage |
| format | info:ar-repo/semantics/artículo |
| id | INTA17762 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA177622024-05-16T11:08:00Z Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content Abadia, María Bernadette Castellari, Claudia Monterubbianesi, María Cecilia Bartosik, Ricardo Enrique Respiración Oxígeno Dióxido de Carbono Almacenamiento Atmósfera Controlada Calidad de las Semillas Maíz Respiration Oxygen Carbon Dioxide Controlled Atmosphere Storage Seed Quality Maize Understanding microbial development under the typical storage conditions of maize seeds is crucial for maintaining seed quality and ensuring successful crop establishment. In this study, the respiration and microbial growth of yellow-dent maize seeds stored at 12%, 13%, and 14% moisture content (corresponding to 65%, 70%, and 75% relative humidity, respectively) and 25 °C were investigated. Two maize seed lots (hybrids KM4500 and KM4580) with different initial fungal loads were used in the experiments. To calculate the respiration rates, seeds were stored in hermetically closed jars and the oxygen and carbon dioxide concentrations were monitored for 180 days. The microbial load (colony forming units and percentage of infected seeds) was measured prior and after storage at the three humidity levels. At 65% and 70% relative humidity, respiration rates were close to zero in both seed lots, indicating minimal microbial activity. However, at 75% relative humidity, respiration rates showed a bell-shaped pattern, suggesting the onset of microbial activity in both seed lots. The seed lot with higher initial fungal load (KM4500) presented a higher respiration rate. The microbial load decreased at 65% and 70% relative humidity and the decreasing trend reverted at 75% relative humidity. This work indicates that 70% relative humidity is a safe storage moisture to prevent microbial activity at 25 °C in the studied yellow-dent maize seeds, independently of their initial fungal load. Hermetic storage, also, would make sense for seed storage only above 75% r.h. (14% m.c.) This study provides valuable insight for preserving seed quality during long-term commercial storage EEA Balcarce Fil: Abadía, María Bernadette. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible Balcarce; Argentina Fil: Castellari, Claudia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina Fil: Monterubbianesi, María Gloria Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina Fil: Bartosik, Ricardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible Balcarce; Argentina 2024-05-16T10:58:47Z 2024-05-16T10:58:47Z 2023-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/17762 https://www.sciencedirect.com/science/article/pii/S0022474X23001352 0022-474X https://doi.org/10.1016/j.jspr.2023.102209 eng info:eu-repograntAgreement/INTA/2019-PE-E7-I147-001, Inocuidad de alimentos para consumo humano y animal info:eu-repograntAgreement/INTA/2019-PE-E7-I148-001, Procesos y tecnologías sostenibles para el agregado de valor en las cadenas y regiones info:eu-repograntAgreement/INTA/2019-PD-E7-I153-001, Estrategias tecnológicas innovadoras para la transformación y preservación de alimentos info:eu-repograntAgreement/INTA/2019-PE-E7-I517-001, Calidad nutricional y sensorial de alimentos y aptitud tecnológica de materia prima asociada a sistemas y territorios productivos con foco en las demandas del consumidor info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Journal of Stored Products Research 104 : 102209. (December 2023) |
| spellingShingle | Respiración Oxígeno Dióxido de Carbono Almacenamiento Atmósfera Controlada Calidad de las Semillas Maíz Respiration Oxygen Carbon Dioxide Controlled Atmosphere Storage Seed Quality Maize Abadia, María Bernadette Castellari, Claudia Monterubbianesi, María Cecilia Bartosik, Ricardo Enrique Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title | Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title_full | Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title_fullStr | Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title_full_unstemmed | Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title_short | Respiration rates and microbiological development in yellow-dent maize seeds stored between 12% and 14% moisture content |
| title_sort | respiration rates and microbiological development in yellow dent maize seeds stored between 12 and 14 moisture content |
| topic | Respiración Oxígeno Dióxido de Carbono Almacenamiento Atmósfera Controlada Calidad de las Semillas Maíz Respiration Oxygen Carbon Dioxide Controlled Atmosphere Storage Seed Quality Maize |
| url | http://hdl.handle.net/20.500.12123/17762 https://www.sciencedirect.com/science/article/pii/S0022474X23001352 https://doi.org/10.1016/j.jspr.2023.102209 |
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