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Title

Strawberry cultivar and breeding lines susceptibility to Phytophthora crown and root rot in Huelva (Spain)

AuthorsBorrero, C.; Refoyo, A.; Sanz, Carlos
KeywordsBreeding
Fragaria × ananassa
Soilborne
Disease
Phytophthora cactorum
Issue Date20-Apr-2017
PublisherInternational Society for Horticultural Science
CitationActa Horticulturae 1156: 777-780 (2017)
AbstractPhytophthora crown and root rot of strawberries is caused by Phytophthora cactorum. Breeding programs for resistance to this disease are in progress in Spain. In a previous work, the different susceptibility of the most important strawberry cultivars used in Huelva (Spain) was observed. In the present work, 2 cultivars and 3 breeding lines were included in assays of susceptibility with artificial inoculation. Eighteen plants of each cultivar were inoculated with a root bath in a suspension with P. cactorum propagules. After inoculation, plants were cultivated in a growth chamber in a randomized design with three repetitions of six plants each. The assays were conducted two times from September to December in 2014 and 2015. Results showed 4 susceptibility groups: 'Fortuna' the most susceptible cultivar; 'Primoris' with moderate susceptibility; 'A11-407P-3' and 'A10-48-3' with lower susceptibility and 'A10-207P-8' the lowest susceptible breeding line. 'A10-207P-8' had 56.4% less disease severity than the most susceptible cultivar. Therefore, the use of these three breeding lines will be an interesting resource to control this disease in an integrated disease management program.
Description4 Páginas, 1 Figura
Publisher version (URL)http://dx.doi.org/10.17660/ActaHortic.2017.1156.114
URIhttp://hdl.handle.net/10261/166562
ISSN0567-7572
Appears in Collections:(IG) Artículos
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