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Water Versus Source-Sink Relationships in a Semiarid Tempranillo Vineyard: Vine Performance and Fruit Composition

机译:半干旱Tempranillo葡萄园中水与源-汇的关系:葡萄性能和果实组成

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摘要

Grapevine yield and fruit composition largely depend on vine water status, which can be manipulated, especially in semiarid climates, by irrigation strategies and training systems. The objective of this research was to examine the influence of canopy height on vine growth, yield, and berry traits of Tempranillo vines under different degrees of water stress. Two canopy heights and three irrigation strategies, similarly applied in the two training systems, were tested in combination. Over two years (2010 and 2011), elevating the canopy resulted in a 26% increase in leaf area per vine but also in greater water stress. As a consequence, yield was reduced by an average of 12% in the elevated canopy for the three irrigation levels, due to lower cluster and berry weight; berries from the elevated canopy had greater total soluble solids and anthocyanin concentrations, lower total acidity, and lower malic and tartaric acid concentrations. There were only slight differences in yield under the different irrigation regimes. However, berry anthocyanin concentrations were higher when an early deficit irrigation strategy was applied. Midday stem water potential, rather than the leaf-area-to-yield ratio, better explained differences in vine performance and fruit composition between the treatments. This suggests that vine performance in the study area is more influenced by water availability than by the amount of sunlight intercepted.
机译:葡萄的产量和果实组成很大程度上取决于葡萄的水分状况,可以通过灌溉策略和培训系统对其进行调节,特别是在半干旱气候下。这项研究的目的是研究在不同程度的水分胁迫下,冠层高度对藤蔓生长,产量和浆果性状的影响。组合测试了两个培训系统中类似应用的两个树冠高度和三个灌溉策略。在过去的两年中(2010年和2011年),树冠升高导致每棵葡萄藤的叶面积增加26%,但水分胁迫也加剧。结果,由于较低的簇集和浆果重量,在三种灌溉水平下,高冠层的平均产量降低了12%。高冠层的浆果具有较高的总可溶性固形物和花色苷浓度,较低的总酸度以及较低的苹果酸和酒石酸浓度。在不同的灌溉制度下,产量只有微小的差异。但是,当采用早期亏缺灌溉策略时,浆果花色苷浓度较高。午间茎水势而不是叶面积/产量比更好地解释了处理之间葡萄藤性能和果实组成的差异。这表明研究区域葡萄藤的生长性能受水的可利用性的影响要大于受阳光拦截的数量。

著录项

  • 来源
    《American journal of enology & viticulture》 |2017年第1期|11-22|共12页
  • 作者单位

    Departamento de Riego, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS-CSIC), P.O. Box 30100, Espinardo, Murcia, Spain;

    Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

    Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

    Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

    Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

    Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

    Departamento de Riego, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS-CSIC), P.O. Box 30100, Espinardo, Murcia, Spain,Institute Valenciano Investigaciones Agrarias (IVIA), Sustainable Agriculture Center, P.O. Box 46113, Moncada, Valencia, Spain;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    anthocyanins; canopy height; leaf area; water status; yield;

    机译:花青素;顶篷高度叶面积;水状况;让;

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