Detalhes bibliográficos
| Ano de defesa: |
2011 |
| Autor(a) principal: |
SILVA, Jeferson Araújo
 |
| Orientador(a): |
LIMA, Gaus Silvestre de Andrade |
| Banca de defesa: |
OLIVEIRA, Sônia Maria Alves de,
LARANJEIRA, Delson,
ASSUNÇÃO, Iraildes Pereira |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Fitopatologia
|
| Departamento: |
Departamento de Agronomia
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6571
|
Resumo: |
The collar rot caused by Sclerotium rolfsii, is an important disease that causes an incidence in lima bean (Phaseolus lunatus L.) at the Northeastern of Brazil. Aiming to select genotypes with potential to be used in a disease management, there were 50 genotypes of lima bean evaluated in relation to an isolate of S. rolfsii. Plants with 10 days old were inoculated by an injury into their base and deposited the sclerotia of the pathogen. The evaluation occurred at the 10th day after the inoculating, by calculating the percentage of the number of plants with symptoms in relation to the total of plants per pot. Most part of the genotypes (58%) behaved as highly susceptible to the pathogen while 28% were classified as susceptible, 10% as moderately resistant. Only two genotypes (F-2 and F-25) behaved as extremely resistant, corresponding to 4% of the total. The stability of resistance of these two genotypes was evaluated in relation to 10 isolates of S. rolfsii. Both genotypes showed a good level of resistance, thus demonstrating the potential of its use as a strategy for management of collar rot of the lima bean crop. |
