Abstract
The work was carried out on Vitis vinifera, L. (cv. Macabeo) grafted onto 110 Ritcher rootstock and cultivated in two locations of the southern half of Spain: La Albuera (Badajoz) and Villarrobledo (Albacete), during 2016 and 2017. The soil of La Albuera is clay-loam texture, 1 m deep and 160 mm/m available water capacity (AWC); respect to climate is warm, cool nights and very dry according to the classification of [1]. The Villarrobledo soil is 0.75 m deep, silty-clay-loam texture and 135 mm/m AWC; the climate is very warm, cool nights and moderately dry climate. The study consisted in maintaining during two consecutive years and in both locations, the same hydric state of grapevine, which was evaluated by measurements of midday stem water potential, and comparing productive results obtained in the two places. Results derived from the analysis of yield components, as well as those derived of grape composition (total acidity, tartaric acid, malic acid, pH, potassium and soluble solids) show little variation between locations, instead great interannual variation among the parameters studied, so the "year-variety" effect seems to influence much more to the final result than the "locality-variety", for the case under study.
Highlights
Terroir is concerned with the relationship between the characteristics of an agricultural product and its geographic origin, which might influence these characteristics
The soil of La Albuera is clay-loam texture, 1 m deep and 160 mm/m available water capacity (AWC); respect to climate is warm, cool nights and very dry according to the classification of [1]
The study consisted in maintaining during two consecutive years and in both locations, the same hydric state of grapevine, which was evaluated by measurements of midday stem water potential, and comparing productive results obtained in the two places
Summary
Terroir is concerned with the relationship between the characteristics of an agricultural product (quality, taste, style) and its geographic origin, which might influence these characteristics. The concept of terroir has been described as an interactive ecosystem which include the climate, soil, the vine, and human factors [2, 3]. From another point of view, [4] defined “Terroir” as a ubiquitous term in the comercial wine world. It is clear that the genotype is a major source of differences in fruit composition [5]. Fruit composition changes over time during berry development and ripening as part of the grapevines developmental program and is under genetic control [6]. The effect of climate, soil and cultivar on berry development and berry composition cannot be separated [7], [8] and [9] found that the effect of climate was the geatest, after which soil and cultivar followed
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