Effects of Water-Deficit Irrigation on Hormonal Content and Nitrogen Compounds in Developing Berries of Vitis vinifera L. cv. Tempranillo

  1. Niculcea, M. 1
  2. Martinez-Lapuente, L. 2
  3. Guadalupe, Z. 23
  4. Sánchez-Díaz, M. 1
  5. Morales, F. 1
  6. Ayestarán, B. 23
  7. Antolín, M.C. 1
  1. 1 Estación Experimental de Aula Dei
    info

    Estación Experimental de Aula Dei

    Zaragoza, España

    ROR https://ror.org/056a37x91

  2. 2 Instituto de Ciencias de la Vid y del Vino
    info

    Instituto de Ciencias de la Vid y del Vino

    Logroño, España

    ROR https://ror.org/01rm2sw78

  3. 3 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Journal of Plant Growth Regulation

ISSN: 0721-7595

Año de publicación: 2013

Volumen: 32

Número: 3

Páginas: 551-563

Tipo: Artículo

DOI: 10.1007/S00344-013-9322-Z SCOPUS: 2-s2.0-84881261376 WoS: WOS:000322781500010 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Plant Growth Regulation

Objetivos de desarrollo sostenible

Resumen

Water-deficit irrigation to grapevines reduces plant growth, yield, and berry growth, altering the ripening process, all of which may influence fruit composition and wine quality. Therefore, the goals of this study were (1) to investigate the influence of the main endogenous berry hormones, abscisic acid (ABA), indole-3-acetic acid (IAA), salicylic acid (SA), and jasmonic acid (JA), on berry growth and ripening under water-deficit conditions and (2) to analyze changes in fruit composition, specifically N compounds, under water deprivation. The study was carried out using container-grown Tempranillo grapevines grown under controlled conditions in a greenhouse. Two irrigation treatments were imposed: control (well-watered) and sustained deficit irrigation (SDI). Water deficit decreased leaf area and the source-to-sink ratio, reduced yield and berry size, and decreased concentrations of the main phenolic compounds. SDI also modified berry hormonal status. At the pea-size stage, SDI berries had lower IAA and higher JA and SA than nonstressed berries. At veraison (onset of ripening), accumulation of ABA was less accentuated in SDI than in control berries. At harvest, the content of amino acids and free ammonium was low in both treatments but SDI-treated berries showed a significant accumulation of amines. Results suggest that water restrictions to grapevines might be playing a physiological role in reducing berry growth through affecting hormone dynamics, phenolic synthesis, and the berry amino acid content and composition, which could compromise fruit quality. Possible roles of endogenous IAA controlling berry size and endogenous ABA and SA controlling levels of anthocyanins and flavonols at harvest are discussed. © 2013 Springer Science+Business Media New York.