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IVES 9 IVES Conference Series 9 OIV 9 OIV 2024 9 Orals - Viticulture, table grapes, dried grapes and unfermented grape products 9 Unveiling the viticultural heritage of Rachaya, Lebanon: genetic and chemical profiling of local grape varieties

Unveiling the viticultural heritage of Rachaya, Lebanon: genetic and chemical profiling of local grape varieties

Abstract

Located in the western bekaa region of lebanon, rachaya is known for its extensive history of viticulture and ideal mediterranean conditions for grapevine cultivation. Despite the area’s importance in grapevine production, there is limited knowledge about the local grape varieties grown there. In this work, we conducted a detailed analysis of five local grapevine varieties in the area, obeidy, kassoufi, foddeh, aswadi, and maryami, of which little is currently known, in comparison to a set of international varieties. Our study included genetic analysis using 25 ssr markers, morphological assessment with 15 oiv descriptors related to leaf, bunch and berry, and monitoring of berry physico-chemical maturity. Findings revealed a substantial diversity of rachaya grapevine gene pool with distinct genetic, morphological and chemical profiles. This information is valuable to valorize and boost the sustainable utilization of these grape varieties, particularly for wine production.

Dévoilement du patrimoine viticole de Rachaya, Liban : profilage génétique et chimique des variétés de raisins locales

Située dans la région de la bekaa occidentale du liban, rachaya est connue pour son histoire viticole étendue et ses conditions méditerranéennes idéales pour la culture de la vigne. Malgré l’importance de la région dans la production de raisins, les connaissances sur les variétés locales de raisins qui y sont cultivées sont limitées. Dans ce travail, nous avons mené une analyse détaillée de cinq variétés locales de raisins de la région, obeidy, kassoufi, foddeh, aswadi et maryami, dont on connaît peu de choses actuellement, en comparaison avec un ensemble de variétés internationales. Notre étude a inclus une analyse génétique utilisant 25 marqueurs ssr, une évaluation morphologique avec 15 descripteurs oiv liés à la feuille, à la grappe et à la baie, ainsi que le suivi de la maturité physico-chimique de la baie. Les résultats ont révélé une diversité substantielle du pool génétique de la vigne de rachaya avec des profils génétiques, morphologiques et chimiques distincts. Ces informations sont précieuses pour valoriser et promouvoir l’utilisation durable de ces variétés de raisin, notamment pour la production de vin.

Descubriendo el patrimonio vitícola de Rachaya, Líbano: perfil genético y químico de las variedades de uva locales

Ubicada en la región occidental de bekaa en líbano, rachaya es conocida por su extensa historia de viticultura y las condiciones mediterráneas ideales para el cultivo de la vid. A pesar de la importancia de la zona en la producción de vid, hay un conocimiento limitado sobre las variedades de uva locales cultivadas allí. En este trabajo, realizamos un análisis detallado de cinco variedades locales de vid en la zona: obeidy, kassoufi, foddeh, aswadi y maryami, de las cuales se conoce poco actualmente, en comparación con un conjunto de variedades internacionales. Nuestro estudio incluyó un análisis genético utilizando 25 marcadores ssr, evaluación morfológica con 15 descriptores oiv relacionados con la hoja, el racimo y la baya, y seguimiento de la madurez físico-química de la baya. Los hallazgos revelaron una diversidad sustancial del pool genético de la vid de rachaya con perfiles genéticos, morfológicos y químicos distintivos. Esta información es valiosa para valorizar y promover la utilización sostenible de estas variedades de uva, especialmente para la producción de vino.

Publication date: November 18, 2024

Issue: OIV 2024

Type: Article

Authors

Lamis Chalak¹, Catherine Roux², Valerie Laucou², Joe-Assaad Touma³, Naim Ouaini⁴, Marc El Beyrouthy⁴, Nissrine Karam¹, Thierry Lacombe², Patrice This², Joe Merheb²

¹ Department of Plant Production, Faculty of Agronomy, The Lebanese University, Dekwaneh, Lebanon
² UMR AGAP Institute, Univ. Montpellier, CIRAD, INRAE, Institut Agro Montpellier, France
³ Chateau St. Thomas, Lebanon
⁴ Department of Agricultural and Food Engineering, School of Engineering, Holy Spirit University of Kaslik, Lebanon 

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Tags

IVES Conference Series | OIV | OIV 2024

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