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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

Abstract

[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.

DOI:

Publication date: January 12, 2022

Issue: Terroir 2004

Type: Article

Authors

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

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Keywords

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

Tags

IVES Conference Series | Terroir 2004

Citation

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