Rhizosphere microorganisms potential antagonists fusarium sp. causing root rot of passion fruit (passiflora edulis sims)
The passion fruit crop (Passiflora edulis) is very important for the Colombian economy. Nowadays this crop is affected by damping-off disease caused by Fusarium sp. So, it is necessary to look for alternatives which allow us to control the disease efficiently. The bacteria Azotobacter spp., Azoospir...
- Autores:
-
Quiroga-Rojas, Luisa Fernanda
Ruiz-Quiñones, Nataly
Muñoz-Motta, Guerly
Lozano-Tovar, María Denis
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2012
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/72172
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/72172
http://bdigital.unal.edu.co/36645/
- Palabra clave:
- 6 Tecnología (ciencias aplicadas) / Technology
63 Agricultura y tecnologías relacionadas / Agriculture
Azospirillum spp.
Azotobacter spp.
biocontrol
Passiflora edulis
Trichoderma spp.
Azospirillum spp.
Azotobacter spp.
biocontrol
Passiflora edulis
Trichoderma spp.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | The passion fruit crop (Passiflora edulis) is very important for the Colombian economy. Nowadays this crop is affected by damping-off disease caused by Fusarium sp. So, it is necessary to look for alternatives which allow us to control the disease efficiently. The bacteria Azotobacter spp., Azoospirillum spp. and the fungi Trichoderma spp., were evaluated as a Fusarium sp. potential biocontrol in In vitro and In vivo test. The research was carried out in laboratory and nursery. The “dual test” showed that a wild isolate of Trichoderma spp. and a commercial product (Trichoderma lignorum), inhibited the mycelial growth of Fusarium sp. between 94.2 and 93.6% respectively. Trichoderma evaluation on passion fruit plantlets at three application times demonstrated that applying Trichoderma before Fusarium sp. appearance, decreased the disease occurrence between 75.0 and 50.0%, whereas applying Trichoderma after or simultaneously with the pathogen, the disease in the plantlets decreased until 25.0%. This suggests that inoculation of pregerminated seeds with bio-control agents improved the protection of plants against the pathogenic and they are an important tool for management of diseases in plants of passion fruit. |
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