El uso de elicitores como herramienta para obtener vinos altamente coloreados con un reducido grado alcohólico

  1. P. Martínez-Pérez 1
  2. A. Martínez-Moreno 1
  3. A.B. Bautista-Ortín 1
  4. E.P. Pérez-Álvarez 2
  5. E. Gómez-Plaza 1
  1. 1 Universidad de Murcia
    info

    Universidad de Murcia

    Murcia, España

    ROR https://ror.org/03p3aeb86

  2. 2 Instituto de Ciencias de la Vid y del Vino (ICVV)
Journal:
Enoviticultura

ISSN: 2013-6099

Year of publication: 2022

Issue Title: Proyecto RIS3Murcia Vid4Vino

Issue: 76

Type: Article

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More publications in: Enoviticultura

Abstract

Climate change is causing a gap between the technological and phenolic maturity of grapes, resulting in wines with high alcohol content and low polyphenol concentration. The objective was to evaluate the efficacy of three elicitors (Lalvigne, Harpin and Bion) to accelerate the synthesis of phenolic compounds and harvest with less sugar to obtain wines with less alcohol. In 2019 and 2020, two applications were made, at veraison and 15 days later. In 2021 only Harpin was applied and a third dose was added 15 days after the second. The results show that the elicitors increased the phenolic compounds in the grapes and consequently in the wines, with respect to a control with the same alcoholic degree. In addition, wines with a lower alcohol content were obtained, but with a polyphenol content similar to or higher than a control with more alcohol. The treatment that best suits the desired objective is the triple application of Harpin.

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