Publikation:
Host genotype and weather effects on fusarium head blight severity and mycotoxin load in spring barley

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dc.contributor.authorHoheneder, Felix
dc.contributor.authorBiehl, Eva Maria
dc.contributor.authorHeß, Michael
dc.contributor.authorHofer, Katharina
dc.date.accessioned2024-06-16T13:04:27Z
dc.date.available2024-06-16T13:04:27Z
dc.date.issued2022
dc.description.abstractEpidemiology of Fusarium Head Blight (FHB) of spring barley is relatively little understood. In a five-year study, we assessed quantitative resistance to FHB in an assortment of 17 spring barley genotypes in the field in southern Germany. To this end, we used soil and spray inoculation of plants with F. culmorum and F. avenaceum. This increased disease pressure and provoked genotypic differentiation. To normalize effects of variable weather conditions across consecutive seasons, we used a disease ranking of the genotypes based on quantification of fungal DNA contents and multiple Fusarium toxins in harvested grain. Together, this allowed for assessment of stable quantitative FHB resistance of barley in several genotypes. Fungal DNA contents were positively associated with species-specific Fusarium toxins in single years and over several years in plots with soil inoculation. In those plots, plant height limited FHB; however, this was not observed after spray inoculation. A multiple linear regression model of recorded weather parameter and fungal DNA contents over five years identified time periods during the reproductive phase of barley, in which weather strongly influenced fungal colonization measured in mature barley grain. Environmental conditions before heading and late after anthesis showed strongest associations with F. culmorum DNA in all genotypes, whereas for F. avenaceum, this was less consistent where we observed weather-dependent associations, depending on the genotype. Based on this study, we discuss aspects of practical resistance breeding in barley relevant to improve quantitative resistance to FHB and associated mycotoxin contaminations. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.en
dc.format.extent1 Online-Ressource (25 Seiten)
dc.format.extent3,86 MB
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-2159
dc.identifier.urihttps://openumwelt.de/handle/123456789/2265
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectUmwelt
dc.subjectResistenzzüchtung
dc.titleHost genotype and weather effects on fusarium head blight severity and mycotoxin load in spring barley
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleToxins
local.bibliographicCitation.originalDOI10.3390/toxins14020125
local.bibliographicCitation.volume14 (2022), Heft 2
local.collectionAufsätze
local.contributor.authorId02186583
local.contributor.authorId02191516
local.contributor.authorId02161051
local.identifier.catalogId02496293
local.ingest.leader05770naa a2200000uu 4500
local.jointTitleHOST GENOTYPE AND WEATHER EFFECTS ON FUSARIUM HEAD BLIGHT SEVERITY AND MYCOTOXIN LOAD IN SPRING BARLEY
local.reviewtrue
local.sourcecatalog
local.source.urihttp://creativecommons.org/licenses/by/4.0/
local.staffPublicationtrue
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relation.isAuthorOfPublication.latestForDiscoverydfca1836-3d98-45c9-8426-4fbc5612556c
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