Terroir 2004 banner
IVES 9 IVES Conference Series 9 Effect of irrigation and soil type on root growth and distribution of Vitis vinifera L. cv. Nero d’Avola grown in Sicily

Effect of irrigation and soil type on root growth and distribution of Vitis vinifera L. cv. Nero d’Avola grown in Sicily


[English version below]

L’essai a été effectué dans un vignoble du cépage Nero d’Avola greffé sur 1103 Paulsen dans un terroir de la D.O.C Alcamo en Sicile. Le système de conduite des vignes était à espalier, la taille à cordon coursonné et l’irrigation à goutte a goutte. On a été confrontés trois types de traitements: A) vignes non irriguées; B) vignes irriguées quand le potentiel hydrique foliaire (potentiel de base) était au dessous de –0.7 MPa, pour maintenir le potentiel hydrique foliaire de base au dessous de –0.4 MPa jusqu’à la récolte; C) vignes irriguées en maintenant le potentiel hydrique foliaire de base au dessous de –0.4 MPa du débourrement à la récolte. Dans le parcelle de l’essai étaient présents trois types de sol argileux: Entisol dans le partie haute de la colline, Inceptsol à moitié de la colline et Vertisol à la vallée de la colline. On a déterminé la distribution du système racinaire de la vigne dans les différentes types de sol par rapport aux différents traitements hydriques en emploient la méthode du contact. L’irrigation a été le facteur le plus important pour la croissance et la distribution du système racinaire; on a aussi noté que la stratégie de l’apport hydrique doit être calculée par rapport au type du sol ou vice-versa; par conséquence c’est le type de sol que détermine la stratégie d’irrigation la plus appropriée. Pour étudier les rapports entre le système racinaire et le feuillage et toute la biomasse il faut tenir en compte l’efficience du système racinaire, particulièrement dans les conditions dans lesquelles les divers effets limitants sont réduits, comme se vérifie dans les endroits secs où on emploie l’irrigation.

The trial was carried out in a Nero d’Avola vineyard, grafted onto 1103Paulsen, and located in Alcamo D.O.C. area (Sicily). Vines were trained to a vertical trellis system, spur pruned and drip irrigated. Three treatments were applied: A) vines grown without irrigation water; B) vines irrigated when the pre-dawn leaf water potential was above -0.7 MPa and to maintain pre-dawn leaf water potential at value below -0.4 MPa until harvest; C) vines irrigated in order to maintain pre-dawn leaf water potential at value below -0.4 MPa, from budbreak to harvest. Three clay soil types were present in the vineyard: Entisol, on the top of the hill, Inceptisol, halfway down the hill and Vertisol, at the bottom of the hill. The distribution of the root system in the different soil types and in relation to the different irrigation treatments was determined by using the contact method. Irrigation was the most important factor in determining the quantity and distribution of roots, even if it was also noted that the irrigation strategy must be calculated in relation to the type of soil or vice-versa, so that the type of soil determines the most suitable irrigation strategy. For the study of the relationships between root systems and area, it is necessary to take the efficiency of the root systems into account, especially in conditions in which the various limiting effects are reduced, as happens in the dry environments where irrigation is used.


Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article


M.G. Barbagallo, P. Costanza, R. Di Lorenzo, E. Gugliotta, A. Pisciotta, * S. Raimondi and T. Santangelo

Dipartimento di Colture Arboree – Università degli Studi di Palermo – Viale delle Scienze, 11 – 90128 Palermo – Italy
*Dipartimento di Agronomia Ambientale e Territoriale – Università degli Studi di Palermo

Contact the author


Soil types, irrigation, predawn water potential, root, Nero d’Avola cv


IVES Conference Series | Terroir 2004


Related articles…

Historical reconquest of hillslopes by the “Vins des Abymes” after the collapse of Mont Granier in 1248 (Savoie, France)

The vineyards extending between the hillslopes of ‘Apremont’ and ‘Les Marches’ that dominate the valley of Chambéry (Savoie, French Alps) define the terroir of the ‘Vins des Abymes’.

Modulation of berry composition by different vineyard management practices

High concentration of sugars in grapes and alcohol in wines is one of the consequences of climate change on viticulture production in several wine-growing regions. In order to investigate the possibilities of adaptation of vineyard management practices aimed to reduce the accumulation of sugar during the maturation phase without reducing the accumulation of anthocyanins in grapes, a study with severe shoot trimming, shoot thinning, cluster thinning and date of harvest was conducted on Merlot variety in Istria region (Croatia), under the Mediterranean climate. Four factors which may affect grape maturation and its composition at harvest were investigated in a two-years experiment; severe shoot trimming applied at veraison when >80% of berries changed colour (in comparison to untreated control), shoot thinning (0 and 30%), cluster thinning (0 and 30%), and the date of harvest (early and standard harvest dates). Shoot thinning had no significant impact on berry composition, despite the obtained reduction in yield per vine. Lower Brix in grapes were obtained with earlier harvest date and if no cluster thinning was applied, although at the same time a reduction in the concentration of anthocyanins in berries was observed in these treatments. On the other hand, if severe shoot trimming was applied when >80% of berries changed colour, a reduction of Brix was obtained without a negative impact on berry anthocyanins concentration. We conclude that in cases when undesirably high sugar concentrations at harvest are expected, severe shoot trimming at 80% veraison may effectively be used in order to obtain moderate sugar concentration in berries together with the adequate phenolic composition.

The informative potential of remote and proximal sensing application on vertical- and overhead-trained vineyards in Northeast Italy

The application of remote and proximal sensing in viticulture have been demonstrated as a fast and efficient method to monitor vegetative and physiological parameters of grapevines. The collection of these parameters could be highly valuable to derive information on associated yield and quality traits in the vineyard. However, to leverage the informative potential of the sensing systems, a series of preliminary evaluations should be carried out to standardize working protocols for the specific features of a winegrowing area (e.g., pedoclimate, topography, cultivar, training system). This work aims at evaluating remote and proximal sensing systems for their performance and suitability to provide information on the vegetative, physiological, yield and qualitative aspects of vines and grapes as a function of different training systems in the Valpolicella wine region (Verona, Italy).

Association between dietary pattern and wine consumption and Alzheimer’s disease in a cohort from La Rioja (Spain)

Addressing modifiable risk factors is the most promising strategy to prevent/delay Alzheimer Disease (AD)[1]. The aim of the study was to establish the connections between dietetic habits, wine consumption and AD. Thus, 98 volunteers were recruited: 50 diagnosed as AD and 48 healthy/controls. The Food Frequency Questionnaire (FFQ) was used for dietary patterns assessment and, based on these data, the Mind Diet Score was calculated. (Poly)phenol metabolites (especially derived from wine consumption) were analyzed by UPLC-QqQ-MS/MS in 24-h urine samples to confirm dietary (poly)phenol consumption.


The structural diversity is one of the most remarkable characteristics of proanthocyanidins (PA). Indeed, PA in wines may vary in the B-ring and C-ring substitutes, the C-ring stereochemistry, the degree of polymerization (DP) and the linkage between the monomers. Knowing in detail the structural characteristics of the PA of a wine can help us to understand and modulate several sensorial characteristics of the wine, such as color, antioxidant properties, flavor, and mouthfeel properties. In the last years was discovered and confirmed the presence of sulfonated monomeric and oligomeric flavan-3-ols in wine [1], as well as was pointed out their importance in wine quality [1,2].