Selections for Resistance against Fire Blight in Young F-1 Hybrid Pear Seedlings in Turkey

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dc.contributor.authorEvrenosoglu, Y.
dc.contributor.authorBaykul, A.
dc.contributor.authorMisirli, A.
dc.contributor.authorAcarsoy, N.
dc.contributor.authorAysan, Y.
dc.contributor.authorHoruz, S.
dc.contributor.authorSaygili, H.
dc.contributor.authorBoztepe, O.
dc.contributor.authorBilen, E.
dc.contributor.authorYazici, I.
dc.contributor.editorRezzonico, F
dc.contributor.editorSmits, THM
dc.contributor.editorHolliger, E
dc.date.accessioned2019-10-27T22:05:28Z
dc.date.available2019-10-27T22:05:28Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description13th International Workshop on Fire Blight -- JUL 02-05, 2013 -- Zurich, SWITZERLANDen_US
dc.description.abstractFire blight, caused by pathogenic bacterium Erwinia amylovora, is a serious disease of pear, with few effective disease management strategies. Therefore, it is very important to strive towards the selection of new resistant cultivars to fire blight. With this purpose, different crosses have been made between resistant cultivar 'Magness' and other resistant or susceptible cultivars and cultigens ('Akca', 'Ankara', 'Bursa', 'Conference', 'Guz', 'Kaiser Alexandre', 'Kieffer', 'Moonglow', 'Tas'). The susceptibility levels of the resulting hybrids were determined by artificial inoculations by Erwinia amylovora in greenhouse conditions. In pathogenicity tests, 10(8) CFU/ml populations of seven E. amylovora strains, isolated from different cities in Turkey, were used to infect the shoots of hybrid plants. Eight weeks after inoculations, the percentage of the necrotic lesion to the total length of the shoot was calculated for each shoot. The experiments were performed twice in August 2010 and May 2011. The average of two experiments was used to calculate the percentage disease severity. Susceptibility was scored by binning the percentage into five distinct classes of increasing susceptibility (A to E). Among 1242 young F-1 hybrid seedlings inoculated, 31.64% of them showed "very low susceptibility" (A), 8.62% displayed "low susceptibility" (B), 18.60% were "moderate susceptibility" (C), 30.27% were "high susceptibility" (D), 10.87% showed "very high susceptibility" (E), and 85 of hybrids were completely destroyed by the pathogen. The 393 "very low susceptibility" and 107 "low susceptibility" F1 hybrids were planted in Eskisehir, in Central Turkey, for screening for agronomical and pomological characteristics.en_US
dc.description.sponsorshipInt Soc Hort Scien_US
dc.identifier.endpage242en_US
dc.identifier.isbn978-94-62610-46-0
dc.identifier.issn0567-7572
dc.identifier.startpage239en_US
dc.identifier.urihttps://hdl.handle.net/11454/48450
dc.identifier.volume1056en_US
dc.identifier.wosWOS:000357733400039en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherInt Soc Horticultural Scienceen_US
dc.relation.ispartofXiii International Workshop on Fire Blighten_US
dc.relation.ispartofseriesActa Horticulturae
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectpearen_US
dc.subjectErwinia amylovoraen_US
dc.subjecthybriden_US
dc.subjectsusceptibilityen_US
dc.subjectdisease reactionen_US
dc.titleSelections for Resistance against Fire Blight in Young F-1 Hybrid Pear Seedlings in Turkeyen_US
dc.typeConference Objecten_US

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