| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000455535 |
| ISSN: | 0103-9016 |
| Autores: | Carraro Lemes, Cláudia Fernanda1 Chiomento, José Luis Trevizan2 Deuner, Carolina Cardoso1 Scheffer Basso, Simone Meredith3 |
| Instituciones: | 1Universidade de Passo Fundo, Departamento de Fitopatologia, Passo Fundo, Rio Grande do Sul. Brasil 2Universidade de Passo Fundo, Departamento de Olericultura, Passo Fundo, Rio Grande do Sul. Brasil 3Universidade de Passo Fundo, Departamento de Botanica, Passo Fundo, Rio Grande do Sul. Brasil |
| Año: | 2022 |
| Volumen: | 79 |
| Número: | 6 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Even though oats (Avena spp.) have the capacity to produce numerous compounds with the potential to act antagonistically against plant pathogens, studies on the genotypic effect of this crop focusing on their nematicidal activity are limited. The objective of this study was to verify the effect of the aqueous extracts prepared with the biomass of oat genotypes, on the hatching of second-stage juveniles of root-knot nematodes (Meloidogyne javanica and Meloidogyne incognita). The bioassays were carried out in a completely randomized design with four replications. Eighteen extracts were evaluated, consisting of a combination of six oat genotypes Agro Quaraí, Agro Esteio, Embrapa 139, AF 12202, UPFPS Farroupilha, and AF 1345 Ucraniana, and three extract concentrations (5 %, 10 %, and 20 % w/v). Three additional treatments were added to the study (distilled water, chemical nematicides abamectin, and imidacloprid + thiodicarb). The treatments and the suspension containing nematode eggs were placed in Petri dishes and incubated in a growth chamber for ten days. At the 5 % and 10 % w/v concentration levels, a genotype effect was observed in the hatching of juveniles for both nematode species. For the control of M. javanica the extracts of Embrapa 139 had a better performance, while the extracts of Agro Quaraí and AF1345 Ucraniana performed better when under the control of M. incognita. Thus, oat biomass formation might have the ability to suppress the nematode population in the soil, and could therefore, be used for the management of root-knot nematodes |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Fitopatología, Helmintos, Control biológico, Nemátodos, Avena, Meloidogyne javanica, Meloidogyne incognita, Genotipos |
| Keyword: | Phytopathology, Helminths, Biological control, Oat, Meloidogyne javanica, Meloidogyne incognita, Genotypes |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
