The Mediterranean climate is characterized by rain scarcity resulting in the frequent use of low quality water for irrigation often containing high concentrations of sulfates and chlorides. This work was undertaken to study the influence of drought and saline irrigation water on the composition of Monastrell wines. The experiment was carried out during three years in a commercial vineyard sited in D.O. Jumilla (SE Spain). Six watering regimes were performed: Rainfed (no irrigation); Control, irrigated throughout the season with good quality water and other four treatments with a combination of two moments of initiation of irrigation (pre- and post-veraison) with two types of salinity water (sulfates and chlorides). The watering regime had more effect on the wine composition than the application of saline irrigation. In general, wines made with grapes from the Rainfed treatment had the highest polyphenols concentration and color intensity. Treatments with post-veraison saline water application improved wine quality with respect to the treatments irrigated during the entire season. Indeed, saline irrigation itself did not influence wine composition, while the watering regime modified wine quality, improving the wine phenolic composition particularly when water is restricted during pre-veraison. In any case, the best wine phenolic and chromatic composition was obtained from the Rainfed vines being the preferred watering management for optimizing wine quality. If saline irrigation has to be applied to improve vine performance, it is preferred to concentrate its application during the post-veraison period.

地中海气候的特点是雨水稀少，导致经常使用劣质水进行灌溉，灌溉用水中通常含有高浓度的硫酸盐和氯化物。这项工作旨在研究干旱和盐水灌溉对Monastrell葡萄酒成分的影响。该实验是在位于西班牙东南部DO Jumilla的商业葡萄园中进行的，历时三年。进行了六种浇水方式：雨养（不灌溉）；对照，在整个季节中均使用优质水和其他四种处理方法进行灌溉，并结合两种开始灌溉的时间（检验前和检验后）用两种类型的盐度水（硫酸盐和氯化物）进行灌溉。与使用盐水灌溉相比，浇水方式对葡萄酒成分的影响更大。一般来说，用Rainfed处理的葡萄制成的葡萄酒中多酚浓度和颜色强度最高。与在整个季节中灌溉的处理相比，用veraison盐渍水处理后的葡萄酒品质得到改善。的确，盐水灌溉本身并不会影响葡萄酒的成分，而浇水方式则可以改善葡萄酒的品质，改善葡萄酒中的酚类成分，尤其是在预检验期间用水受限的情况下。在任何情况下，从Rainfed葡萄藤中获得最佳的葡萄酒酚醛和色度成分，是优化葡萄酒质量的首选浇水管理方法。如果必须进行盐水灌溉以提高葡萄的生长性能，则最好在检验后期间集中使用。