Ascophyllum Nodosum seaweed extract as an alternative for control of post-harvest soft rot in strawberries / Extrato de alga marinha de Ascophyllum Nodosum como alternativa para controle da podridão mole pós-colheita em morangos
Strawberry post-harvest losses caused by Rhizopus stolonifer (RS) is one of the main problems affecting strawberry production in Brazil. The objective of this study was to evaluate the potential of a commercial product based on Ascophyllum nodosum (AN) seaweed extract in the inhibition of the pathog...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Institución: | Instituto Superior de Educação Vera Cruz (VeraCruz) |
| Repositorio: | Revista Veras |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs2.ojs.brazilianjournals.com.br:article/7821 |
| Acceso en línea: | https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/7821 |
| Access Level: | acceso abierto |
| Palabra clave: | Biofertilizer sustainability phytopathology food safety biostimulant. |
| Sumario: | Strawberry post-harvest losses caused by Rhizopus stolonifer (RS) is one of the main problems affecting strawberry production in Brazil. The objective of this study was to evaluate the potential of a commercial product based on Ascophyllum nodosum (AN) seaweed extract in the inhibition of the pathogen growth and disease development in strawberries. The commercial product was tested in vitro to evaluate the influence of the seaweed extract on the mycelial growth of the pathogen. Potato-dextrose-agar (PDA) medium received different concentrations of the seaweed extract. After 24h, a disk of RS was transferred to the PDA plates containing seaweed extract. Organic strawberries were immersed for 5 minutes in a solution of the AN seaweed extract in the concentration of 40 mL.L-1. After 24h the strawberries were inoculated by mycelial disk and incubated for 72h at 25o C. The fruits were then evaluated for disease incidence. The commercial product reduced fungal growth at the 5 mL.L-1 concentration and completely inhibited fungal incidence at 40 mL.L-. The A. nodosum seaweed extract at 40 mL L-1 was able to reduce 22.3% of soft rot incidence of strawberries in post-harvest in fruits inoculated by mycelial disks of the phytopathogen without change in humidity and at 25ºC. The results of this study suggest that AN has a potential to be used in the management of soft rot and increase the shelf life of strawberries in post-harvest. |
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