Identification of passion fruit genotypes resistant to Fusarium oxysporum f. sp. passiflorae
AUTOR(ES)
Silva, Aline dos Santos, Oliveira, Eder Jorge de, Haddad, Fernando, Laranjeira, Francisco Ferraz, Jesus, Onildo Nunes de, Oliveira, Saulo Alves Santos de, Costa, Maria Angélica Pereira de Carvalho, Freitas, Juan Paulo Xavier de
FONTE
Trop. plant pathol.
DATA DE PUBLICAÇÃO
28/05/2013
RESUMO
This study aimed to characterize the resistance of 31 passion fruit (Passiflora sp.) genotypes to Fusarium oxysporum f. sp. passiflorae (FOP). About 20 seedlings of each genotype were inoculated by immersing the roots in a suspension of 10(6) macroconidia mL-1 for five minutes and then transplanting them into pots containing a mixture of soil and sterile substrate. They were evaluated daily for 120 days for the occurrence of wilt symptoms and death. These data were used to calculate the area under the disease progress curve, for survival analysis and grouping. The mortality rate ranged from 0 to 100% and the AUDPC ranged from 0 for genotypes without symptoms of the disease to 6,650.63 for the hybrid HFOP-01. Genotypes were classified into four subgroups: resistant, moderately resistant, susceptible and highly susceptible. The resistance was genotype dependent, but no significant variation was found between the purple and the yellow P. edulis.
Documentos Relacionados
- Molecular fingerprinting of Fusarium oxysporum f. sp. passiflorae isolates using AFLP markers
- Resistance of common bean to Fusarium oxysporum f. sp. phaseoli.
- Atividade de rizobactérias antagonistas a Fusarium oxysporum f. sp. passiflorae em solos cultivados com monocotiledôneas
- Reaction of tomato genotypes to races 2 and 3 of Fusarium oxysporum f. sp. lycopersici
- SURVIVAL MECHANISMS OF Fusarium oxysporum f. sp. passiflorae ARE AFFECTED BY APPLICATION OF CABBAGE AND CASSAVA DEBRIS