Medium-term impacts of saline water deficit irrigation on soil, vine nutrient status, yield and grape composition of Vitis vinifera L. cv. Monastrell
The wine industry faces significant challenges due to climate change, particularly in Mediterranean regions where rising temperatures and water scarcity are prevalent. This study investigates the medium-term effects of deficit irrigation with saline water on vineyard yield, vine water status, fruit...
| Autores: | , , , , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2025 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/390888 |
| Acesso em linha: | http://hdl.handle.net/10261/390888 https://api.elsevier.com/content/abstract/scopus_id/86000347959 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Grapevine Mediterranean climate Mineral nutrition status Salinity Water stress |
| Resumo: | The wine industry faces significant challenges due to climate change, particularly in Mediterranean regions where rising temperatures and water scarcity are prevalent. This study investigates the medium-term effects of deficit irrigation with saline water on vineyard yield, vine water status, fruit composition and vine nutrients. Conducted over two years (2019–2020) in a commercial vineyard, the experiment involved 14-year-old Monastrell grapevines grafted onto 1103P rootstock. Four treatments were applied: Rainfed, Control (standard quality water), Sulfate and Chloride irrigation. Results showed that saline irrigation increased soil electrical conductivity, particularly in the sulfate treatment reaching 800 μS/cm. However, adequate winter rainfall mitigated soil salinity to some extent. Saline irrigation treatments also led to higher sodium concentrations in vine tissues but did not significantly impact chloride levels. The Rainfed treatment significantly reduced leaf area and yield, with an average decrease of 41 % over two years, while saline irrigation treatments led to moderate yield reductions of 18 % in the Sul treatment and 12 % in the Chl treatment compared to the Control. Despite these reductions, saline irrigation did not markedly affect grape composition, with no significant differences in total soluble solids, pH or total acidity. Nevertheless, Rainfed conditions increased phenolic compound concentrations in grapes, potentially enhancing grape quality under controlled water stress. Our findings demonstrate that medium-term saline deficit irrigation moderately impacts yield but does not significantly alter grape composition. These results provide insights for optimizing irrigation strategies in arid viticultural regions to balance productivity and grape quality. Further research is needed to explore long-term impacts and refine irrigation recommendations. |
|---|