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Soil type and soil preparation influence vine development and grape composition through its impact on vine water and nitrogen status

dc.rights.licenseopenen_US
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorVAN LEEUWEN, Cornelis
ORCID: 0000-0002-9428-0167
IDREF: 200518208
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDE RESSEGUIER, Laure
dc.contributor.authorMARY, Séverine
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorLAVEAU, Coralie
dc.contributor.authorMOUSSET-LIBEAU, Etienne
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorMARGUERIT-JACOB, Elisa
ORCID: 0000-0002-5016-990X
IDREF: 127516697
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorROBY, Jean-Philippe
dc.contributor.authorQUINQUEREZ, Amélie
dc.date.accessioned2020-10-21T14:35:00Z
dc.date.available2020-10-21T14:35:00Z
dc.date.issued2018-08-22
dc.identifier.issn2267-1242en_US
dc.identifier.urioai:crossref.org:10.1051/e3sconf/20185001015
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/11461
dc.description.abstractEnThe influence of soil type and preparation on vine development and grape composition was investigated in a 50 ha estate located in Saint-Emilion (Bordeaux, France) and planted predominantly with Merlot. Part of the vineyard was planted down the slopes and another part of the vineyard was planted on terraces, where soils were profoundly modified through soil preparation. Grape composition (berry weight, sugar, total acidity, malic acid and pH), vigor (pruning weight), vine nitrogen status (Yeast Available Nitrogen (YAN) in grapes) and vine water status (δ13C) was measured at a very high density grid of 10 data points per hectare. Water deficit was globally weak over the estate because of high soil water holding capacity whereas vine nitrogen status was highly variable. Vine vigor and grape composition were predominantly driven by vine nitrogen status. On terraces, where soils were deep, due to invasive soil preparation, water deficits were particularly small or non-existent and vine nitrogen status was highly variable. Grape quality potential was medium to low, except in places with low nitrogen status, but at the expense of low yields. On parcels planted down the slopes water deficits were recorded because vine rooting was limited by compact subsoils. Vine nitrogen status was homogeneous. Grape quality and yield were medium to high and relatively homogeneous. When possible, downhill plantations are to be preferred over terraces because in the latter vine yield and quality parameters are highly variable because of massive soil movements prior to plantation.
dc.language.isoENen_US
dc.publisherEDP Sciencesen_US
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourcecrossref
dc.titleSoil type and soil preparation influence vine development and grape composition through its impact on vine water and nitrogen status
dc.typeCommunication dans un congrès avec actesen_US
dc.identifier.doi10.1051/e3sconf/20185001015en_US
bordeaux.page01015en_US
bordeaux.volume50en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.conference.titleXII Congreso Internacional Terroiren_US
bordeaux.title.proceedingE3S Web of Conferencesen_US
bordeaux.peerReviewedouien_US
bordeaux.import.sourcedissemin
hal.exportfalse
workflow.import.sourcedissemin
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