Fecha/hora: 16/06/2024 01:51:13

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 19/07/2022
Fecha de la última actualización: | 19/07/2022
Autoria: | DINI, M.; RASEIRA, M.C.B.; SCARIOTTO, S.; CARPENEDO, S.; UENO, B.
Afiliación: | MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas; MARIA DO CARMO BASSOLS RASEIRA, Empresa Brasileira de Pesquisa Agropecuária; SILVIA SCARIOTTO, Universidade Tecnológica Federal do Paraná; SILVIA CARPENEDO, Empresa Brasileira de Pesquisa Agropecuária; BERNARDO UENO, Empresa Brasileira de Pesquisa Agropecuária.
Título: | Peach and nectarine susceptibility to brown rot and protocol optimization to evaluate Monilinia fructicola sporulation.
Complemento del título: | Crop Protection. (Fitossanidade).
Año de publicación: | 2022
Fuente/Imprenta: | Acta Scientiarum. Agronomy, 2022, 44(1), e55850. doi: https://doi.org/10.4025/actasciagron.v44i1.55850
ISSN: | 1807-8621 (electronic)
DOI: | 10.4025/actasciagron.v44i1.55850
Idioma: | Inglés

Notas:

Article history: Received on September 16, 2020; Accepted on January 20, 2021.
This work is licensed under a Creative Commons Attribution 4.0 International License. https://creativecommons.org/licenses/by/4.0/

Contenido:

ABSTRACT.- 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  ?L  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. 
Copyright (c) 2022 Acta Scientiarum. Agronomy

Palabras-Clave: | Genetic resistance; Screening.
Thesagro: | PRUNUS PERSICA.
Categoría del tema: | F30 Genética vegetal y fitomejoramiento
URL: | https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/55850/751375154467
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103139-1) - PXI - AP - DD - Acta Scientiarum. Agronomy/2022 -  -  - DIS