Journal
EUROPEAN JOURNAL OF PLANT PATHOLOGY
Volume 149, Issue 2, Pages 277-283Publisher
SPRINGER
DOI: 10.1007/s10658-017-1186-9
Keywords
Cultivars; Disease parameters; Phaeomoniella chlamydospora; Resistance; Trunk drilling inoculation
Categories
Funding
- Action 'Research & Technology Development Innovation Projects'-AgroETAK [MIS 453350]
- Operational Program 'Human Resources Development'
- European Social Fund through the National Strategic Reference Framework
Ask authors/readers for more resources
In the present study, four Greek (Agiorgitiko, Asyrtiko, Roditis and Xinomavro) and one international (Soultanina) grapevine cultivars (Vitis vinifera L.) were screened for their resistance to Phaeomoniella chlamydospora. Artificial inoculation was carried out by drilling a hole into the trunk and injecting a concentrated conidial suspension into the vessels. Disease reactions were evaluated in an 87-day assessment period, on the basis of external symptoms (disease incidence, disease severity and mortality) and by calculating the relative areas under disease progress curves (relative AUDPC). The extension of vascular browning as well as the isolation ratio along the inoculated vine trunks were also taken into account as additional parameters for evaluating resistance. The results indicated that the resistance of grapevine cultivars to P. chlamydospora varied significantly. 'Agiorgitiko' and 'Soultanina' were susceptible, whereas 'Asyrtiko' and 'Xinomavro' were resistant; 'Roditis' showed an intermediate level of resistance. Cultivars' resistance was mostly distinguished in terms of the extension of vascular browning and pathogen isolation ratio. On the contrary, the disease incidence, final disease severity, mortality and relative AUDPC provided less distinctive efficiency in resistance evaluation. The robust methodology presented here could be useful in rapid evaluation experiments for future screening programs to search and recognize natural resistant sources within grapevine genotypes against P. chlamydospora.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available