Fecha/hora: 13/06/2024 08:32:39

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 29/01/2024
Fecha de la última actualización: | 29/01/2024
Autoria: | DINI, M.; FRANZON, R.C.; RASEIRA, M.C.B; UENO, B.; MARCHI, P.M.; VIZZOTTO, M.
Afiliación: | MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação em Agronomia, Rio Grande do Sul, Pelotas, Brazil; RODRIGO CEZAR FRANZON, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Clima Temperado, Rio Grande do Sul, Pelotas, Brazil; MARIA DO CARMO BASSOLS RASEIRA, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Clima Temperado, Rio Grande do Sul, Pelotas, Brazil; BERNARDO UENO, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Clima Temperado, Rio Grande do Sul, Pelotas, Brazil; PRISCILA MONALISA MARCHI, Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação em Agronomia, Rio Grande do Sul, Pelotas, Brazil; Faculdade Santo Ângelo (FASA), Agronomia, Rio Grande do Sul, Santo Ângelo, Brazil; MARCIA VIZZOTTO, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Clima Temperado, Rio Grande do Sul, Pelotas, Brazil.
Título: | Blossom blight resistance in peach: phenotyping and antioxidants content in petals.
Año de publicación: | 2023
Fuente/Imprenta: | Brazilian Archives of Biology and Technology, 2023, Volume 66, e23220730. https://doi.org/10.1590/1678-4324-2023220730 -- OPEN ACCESS.
ISSN: | 1516-8913
DOI: | 10.1590/1678-4324-2023220730
Idioma: | Inglés
Notas: | Article history: Received 15 September 2022,  Accepted 31 May 2023,  Publication in this collection 30 October 2023, Date of issue 2023. -- Document type: Article Gold Open Access. -- Correspondence: Dini, M.; Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação em Agronomia, Rio Grande do Sul, Pelotas, Brazil; email:mdini@inia.org.uy  -- Funding: This research was funded by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES), through the first author's doctoral scholarship. -- Editor in Chief: Paulo Vitor Farago. -- Associate Editor: Jane Manfron Budel.-- License: Creative Commons Attribution (CC BY NC) license (https://creativecommons.org/licenses/by-nc/4.0/).
Contenido: | ABSTRACT.- Brown rot and blossom blight caused by fungi of the genus Monilinia are the most important peach diseases. The increased concern with the environment and the health of workers and consumers, as well as the emergence of fungus isolates resistant to the main fungicide molecules favor control strategies such as genetic resistance. The objective of this study was to adjust a phenotyping protocol for evaluation of resistance/susceptibility to blossom blight in peach, as well as to quantify the antioxidant compounds present in the petals of these flowers and their correlation with the disease incidence and severity. The experiment was arranged in a randomized complete block split-split plot design, the plot being four concentrations of Monilinia fructicola conidia; the subplot two phenological flower stage; and the sub-subplot four peach genotypes. The quantification of antioxidant compounds and their correlation with susceptibility to blossom blight was performed in the four genotypes analyzed. Phenotyping was more efficient when concentrations between 400 and 4,000 conidia mL-1 were used, regardless of phenological flower stage. The phenolic compounds, anthocyanins and antioxidant activity are positively correlated among them, and negatively correlated with the blossom blight incidence and severity. In order to estimate the blossom blight susceptibility, it is recommended to use flowers at the pink or bloom stage, inoculum equivalent to 20-200 conidia per flower, and perform the evaluation at 96 hours after inoculation. This study suggests that more intense pink flowers have a higher content of antioxidant compounds and less blossom blight susceptibility. © 2023 by the authors.
Palabras-Clave: | Anthocyanins; Antioxidant activity; Monilinia fructicola (Winter) Honey; Phenolic compounds; Prunus persica (L.) Batsch; SISTEMA VEGETAL INTENSIVO - INIA.
Categoría del tema: | F01 Cultivo
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/17478/1/Dini-eta-2023-BABT-1678-4324-2023220730.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103788-1) - PXI - AP - DD - Brazilian Arch. Biology&Technology/2023 -  -  - DIS