| Revista: | Acta scientiarum. Agronomy |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459849 |
| ISSN: | 1679-9275 |
| Autores: | Dini, Maximiliano1 Raseira, Maria do Carmo Bassols3 Scariotto, Silvia4 Carpenedo, Silvia3 Ueno, Bernardo3 |
| Instituciones: | 1Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Capao do Leao, Rio Grande do Sul. Brasil 2Centro de Orientación Técnica y Económica de las Producciones Aromáticas, Estación Experimental INIA Las Brujas, Rincón del Colorado, Canelones. Uruguay 3Empresa Brasileira de Pesquisa Agropecuária, Clima Temperado, Pelotas, Rio Grande do Sul. Brasil 4Universidade Tecnologica Federal do Parana, Campus Pato Branco, Pato Branco, Parana. Brasil |
| Año: | 2022 |
| Volumen: | 44 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | The fungus Monilinia fructicola, which causes brown rot in fruits, is one of the main peach pathogens. The emergence of fungicide-resistant fungus isolates, as well as the attempt to reduce sprays, favors adoption of other control strategies. Among them, one of the most important is genetic resistance. This study was carried out aiming to evaluate the susceptibility of 16 peach and 4 nectarine genotypes to brown rot, as well as to evaluate how well the sporulation area and diameter correlate with number of spores in the lesions. Both wounded and non-wounded fruits were inoculated with 10 μL of M. fructicola suspension. Wounded fruits from all genotypes (nectarines and peaches) showed susceptibility to M. fructicola, from 92 to 100% of incidence. The disease incidence was between 18 and 100% when non-wounded fruits were inoculated. High variability was detected for the fungus sporulation, in both wounded and non-wounded fruits, with ranges between 16 to 96% and 0 to 94%, respectively. The fungus sporulation was variable among the genotypes (between 0.1 to 96.0 conidia per mm2) and it is positively correlated with the diameter and area of sporulation. The genotypes Conserva 947, Conserva 1662, Conserva 672, Conserva 1600, and 'Bolinha', are the ones with less susceptible to brown rot |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Frutales, Hongos, Fitopatología, Durazno, Prunus persica, Resistencia genética, Monilinia fructicola, Esporulación |
| Keyword: | Fruit trees, Fungi, Phytopathology, Peach, Prunus persica, Genetic resistance, Sporulation |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
