Resistance assessment of grapevine leaves to downy mildew with sporulation area scoring

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dc.authorscopusid7006798815
dc.authorscopusid34573824100
dc.authorscopusid57209738441
dc.authorscopusid14831727300
dc.authorscopusid15757272300
dc.authorscopusid55317598600
dc.contributor.authorÖzer, Nuray
dc.contributor.authorUzun, Halil İbrahim
dc.contributor.authorAktürk, Burak
dc.contributor.authorÖzer, Cengiz
dc.contributor.authorAkkurt, Murat
dc.contributor.authorAydın, Serkan
dc.date.accessioned2022-05-11T14:07:07Z
dc.date.available2022-05-11T14:07:07Z
dc.date.issued2021
dc.departmentFakülteler, Ziraat Fakültesi, Bitki Koruma Bölümü
dc.description.abstractThe use of resistant individuals obtained through a breeding program, aimed at decreasing chemical treatments, is one of the most promising strategies for control of downy mildew caused by Plasmopara viticola in grapevine. In this study, 869 hybrid grape individuals, obtained by crossing the resistant Regent grape cultivar with sensitive Alphonse Lavallée, were tested after artificial inoculation of detached leaves by drops of the pathogen inoculum. Sporulation severity, as visual evaluation of sporulation density including necrosis, and sporulation incidence were scored to assess resistance level, then the sporulation area (mm2) was measured for each individual. The criterium of sporulation incidence could not describe all resistance levels. Sporulation area made it possible to measure the entire area in detail for how the pathogen spread at the inoculation site. Sporulation area was not fully consistent with sporulation severity. In this context, a new scale for sporulation area was developed to determine resistance level to the pathogen by taking into account the distribution of sporulation area values within those obtained from sporulation severity scales. Six categories ranging from 0 to 0.05 mm2 (extremely resistant-ER) to ?15.1 mm2 (extremely sensitive-ES) were defined. 43 of the 869 individuals tested through the three evaluation criteria, in which no sporulation was observed, and 18 additional individuals with sporulation area of <0.05 mm2 were scored in the ER group. Microscopic analysis confirmed findings for the ER group and other resistance levels. The authors suggest that the scale of sporulation area will be useful for assessment of resistance to downy mildew on grapevine leaves. © 2021, Koninklijke Nederlandse Planteziektenkundige Vereniging.
dc.description.sponsorshipUniversity of Nebraska-Lincoln, UNL
dc.description.sponsorshipThis work was supported by the Turkish Scientific and Technical Research Council (TUBİTAK) (Project no:1150176). The authors gratefully acknowledge TUBITAK for financial support and Martha Rowe (University of Nebraska-Lincoln) for improving the language and for useful remarks.
dc.identifier.doi10.1007/s10658-021-02247-2
dc.identifier.endpage348
dc.identifier.issn0929-1873
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85101882632
dc.identifier.scopusqualityQ1
dc.identifier.startpage337
dc.identifier.urihttps://doi.org/10.1007/s10658-021-02247-2
dc.identifier.urihttps://hdl.handle.net/20.500.11776/4963
dc.identifier.volume160
dc.identifier.wosWOS:000623707600002
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorÖzer, Nuray
dc.language.isoen
dc.publisherSpringer Science and Business Media B.V.
dc.relation.ispartofEuropean Journal of Plant Pathology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectArtificial inoculation
dc.subjectAssessment scale
dc.subjectGrapevine hybrids
dc.subjectLesion size
dc.subjectPlasmopara viticola
dc.subjectassessment method
dc.subjectchemical control
dc.subjectdisease control
dc.subjectdisease incidence
dc.subjectdisease resistance
dc.subjectfungal disease
dc.subjectleaf
dc.subjectsporulation
dc.subjectvine
dc.subjectPeronosporaceae
dc.subjectPlasmopara viticola
dc.titleResistance assessment of grapevine leaves to downy mildew with sporulation area scoring
dc.typeArticle

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