title: Assessment of metal bioavailability in the vineyard soil-grapevine system using different extraction methods.
abstract: This study was focused on the assessment of single and sequential extraction methods to predict the bioavailability of metals in the vineyard soil-grapevine system. The modified BCR sequential extraction method and two single-step extraction methods based on the use of EDTA and acetic acid were applied to differently amended vineyard soils. The variety effect was studied on the uptake of metals by leaves and grapes. Most of the elements studied (Ca, Mg, Cu, Fe, Mn, Zn and Pb) were weakly mobilized from vineyard soils, with the exception of Cu and Mn. The determination of total metal content in leaves and grapes showed a different accumulation pattern in the two parts of the vine. A significant relationship was observed, for all the elements studied except for Fe, between the content bioavailable in the soil and the accumulated in both leaves and grapes (R=0.602-0.775, p<0.01).
authors.affiliation: Universidad de Vigo, Departamento de Química Analítica y Alimentaria, Facultad de Química, Lagoas-Marcosende s/n, 36310 Vigo, Spain.
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Vázquez Vázquez
authors.affiliation: Universidad de Vigo, Departamento de Química Analítica y Alimentaria, Facultad de Química, Lagoas-Marcosende s/n, 36310 Vigo, Spain.
authors.forename: Benita
authors.initials: B
authors.lastname: Pérez Cid
authors.affiliation: Università degli Studi di Torino, Dipartimento di Scienze Agrarie, Forestali e Alimentari, Largo Paolo Braccini 2, 10095 Grugliasco (TO), Italy. Electronic address: susana.riosegade@unito.it.
authors.forename: Susana
authors.initials: S
authors.lastname: Río Segade
mesh_terms: D000072480:Farms; D008670:Metals / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry; D012987:Soil / Q000737:chemistry*; D027843:Vitis / Q000737:chemistry*
chemical_list: D008670:Metals; D012987:Soil
keywords: Bioavailability; Grape berries; Leaves; Metals; Sequential extraction methods; Single extractions; Vineyard soil