Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44121, Ferrara, Italy.
CREA, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di ricerca per la viticoltura, Via XXVIII Aprile, 26 31015, Conegliano, Italy.
Environ Sci Pollut Res Int. 2018 Jan;25(1):490-506. doi: 10.1007/s11356-017-0443-y. Epub 2017 Oct 18.
The uptake of major and trace elements in grapevine (Vitis vinifera L.) can be influenced by soil, climate, geographic origin, and rootstock type. Rootstocks were mainly selected to resist phylloxera and for specific tolerance to lime, mineral uptake, drought, and salinity. The relationship among concentrations of major, trace, and rare earth elements was studied in soil and leaves from two Italian grapevine cultivars, "Cabernet Sauvignon" and "Corvina," employed to produce renowned controlled designation of origin (DOC) wines. The cultivars were raised on the same rootstock SO4 in two different areas of the Veneto Region (Northern Italy). The elements were studied by X-ray fluorescence and inductively coupled plasma mass spectrometry, and data were elaborated by non-parametric tests and multivariate linear discrimination analysis. The related index of bioaccumulation was calculated to define the specific assimilation of the elements from soil to leaves. A statistically significant correspondence between soil and leaf samples was observed for Mg, Sm, V, and Zr. The results allowed to discriminate soil and leaf samples of the two cultivars according to geographical provenance, possibly providing geochemical markers (fingerprints) useful against fraudulent use of DOC wine labels.
葡萄(Vitis vinifera L.)对大量和痕量元素的吸收可以受到土壤、气候、地理起源和砧木类型的影响。砧木主要被选择用于抵抗根瘤蚜,以及对石灰、矿物质吸收、干旱和盐度的特定耐受性。研究了两种意大利葡萄品种“赤霞珠”和“科维纳”的土壤和叶片中大量、痕量和稀土元素之间的关系,这些品种用于生产著名的法定产区(DOC)葡萄酒。这些品种在意大利北部威尼托地区的两个不同地区的相同砧木 SO4 上种植。使用 X 射线荧光和电感耦合等离子体质谱法研究了这些元素,通过非参数检验和多元线性判别分析对数据进行了处理。计算了生物累积相关指数,以确定元素从土壤到叶片的特定同化。观察到土壤和叶片样本之间存在 Mg、Sm、V 和 Zr 的统计学上显著对应关系。结果根据地理起源对两种品种的土壤和叶片样本进行了区分,可能提供了有用的地理化学标记(指纹),以防止 DOC 葡萄酒标签的欺诈性使用。