Use este identificador para citar ou linkar para este item:
http://repositorio.ufla.br/jspui/handle/1/50465
Registro completo de metadados
Campo DC | Valor | Idioma |
---|---|---|
dc.creator | Viana, Mariana Thereza Rodrigues | - |
dc.creator | Azevedo, Harianna Paula Alves de | - |
dc.creator | Pereira, Fernanda Aparecida Castro | - |
dc.creator | Carvalho, Milene Alves de Figueiredo | - |
dc.creator | Guimarães, Rubens José | - |
dc.date.accessioned | 2022-07-04T20:38:14Z | - |
dc.date.available | 2022-07-04T20:38:14Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | VIANA, M. T. R. et al. Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress. Coffee Science, Lavras, v. 16, e161949, 2021. DOI: 10.25186/.v16i.1949. | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/50465 | - |
dc.description.abstract | The identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics. | pt_BR |
dc.language | en_US | pt_BR |
dc.publisher | Universidade Federal de Lavras | pt_BR |
dc.rights | Attribution 4.0 International | * |
dc.rights | acesso aberto | pt_BR |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.source | Coffee Science | pt_BR |
dc.subject | Coffee - Leaf rust | pt_BR |
dc.subject | Coffea arabica | pt_BR |
dc.subject | Coffee - Canonical variables | pt_BR |
dc.subject | Hemileia vastatrix | pt_BR |
dc.subject | Cafeeiro - Ferrugem | pt_BR |
dc.subject | Café - Variáveis canônicas | pt_BR |
dc.title | Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress | pt_BR |
dc.type | Artigo | pt_BR |
Aparece nas coleções: | DAG - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
ARTIGO_Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress.pdf | 961,59 kB | Adobe PDF | Visualizar/Abrir |
Este item está licenciada sob uma Licença Creative Commons