Ampelometric Study of Mature Leaves from Two Indigenous Vitis Cultivars Grown in Somontano de Barbastro

Abstract

Mature leaves of two minority grapevine varieties of the Somontano de Barbastro have been characterized by ampelometry. Fifteen basic foliar characteristics (Primer descriptor priority list) and seven additional characteristics derived from relationships among the first 15 have been quantified. From these data, a theoretical leaf has been reconstructed graphically. The leaves of the two studied varieties have a common structure: five-lobbing leaves with a palm venation pattern. Climate significantly influenced characteristics relating to leaf lobes, sinuses or major veins. Leaves of the ‘Parraleta’ variety showed relatively little change in characteristics such as angles between major veins. Stronger variations were observed in leaves of the ‘Moristel’ variety.