Original research articles

Leaf water potential meaning of different modalities of measurements


An experiment on Syrah in the Ecotron design of the AGRO Montpellier/INRA campus vineyard, with the control of different water regimes, allowed to test the physiological meaning and the field of application of different modalities of leaf water potential measurements : predawn and daily potential for leaves in a normal micro-environment (which keep all of their interest and generality), « stem » potential (which must be called differently and reserved to particular conditions) for shadow enveloped leaves. Field observations on Syrah and Merlot confirm the interest of some methods.


Alain Carbonneau


Affiliation : Viticulture-OEnologie, Agro de Montpellier, 2 place Viala, Montpellier, France

Alain Deloire

Affiliation : Stellenbosch University, Department of Viticulture and Oenology, Private Bag X1, Matieland 7602, South Africa; NWGIC, Charles Sturt University, Boorooma Street, Wagga Wagga, NSW, Australia, 2650

Pietro Costanza

Affiliation : AGRO Montpellier, Chaire de Viticulture et d’OEnologie, UMR « Sciences pour l’OEnologie et la Viticulture », 2 place Pierre Viala, 34060 Montpellier cedex1, France; Università degli studi di Palermo, Facoltà di Agraria, Dipartimento di Colture Arboree Viale delle Scienze, 90128 Palermo, Italie


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