Jujube fruit water relations at fruit maturation in response to water deficits

Galindo, A. and Cruz, Z.N. and Rodriguez, P. and Collado González, Jacinta and Corell, M. and Memmi, Houssem and Moreno, F. and Moriana, A. and Torrecillas, Arturo and Pérez López, David (2016). Jujube fruit water relations at fruit maturation in response to water deficits. "Agricultural Water Management", v. 164-1 ; pp. 110-117. ISSN 0378-3774. https://doi.org/10.1016/j.agwat.2015.08.024.

Description

Title: Jujube fruit water relations at fruit maturation in response to water deficits
Author/s:
  • Galindo, A.
  • Cruz, Z.N.
  • Rodriguez, P.
  • Collado González, Jacinta
  • Corell, M.
  • Memmi, Houssem
  • Moreno, F.
  • Moriana, A.
  • Torrecillas, Arturo
  • Pérez López, David
Item Type: Article
Título de Revista/Publicación: Agricultural Water Management
Date: January 2016
ISSN: 0378-3774
Volume: 164-1
Subjects:
Freetext Keywords: Deficit irrigation; Gas exchange; Plant water relations; Zizyphus jujuba
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The fruit maturation stage is considered the optimal phenological stage for implementing water deficitin jujube (Zizyphus jujuba Mill.), since a low, moderate or severe water deficit at this time has no effect onyield, fruit volume or eating quality. However, no information exists at fruit water relations level on themechanisms developed by Z. jujuba to confront drought. The purpose of the present study was to increaseour understanding of the relationship between leaf and fruit water relations of jujube plants under dif-ferent irrigation conditions during fruit maturation, paying special attention to analysing whether fruitsize depends on fruit turgor. For this, adult jujube trees (cv. Grande de Albatera) were subjected to fiveirrigation treatments. Control plants (T0) were irrigated daily above their crop water requirements inorder to attain non-limiting soil water conditions in 2012 and 2013. T1 plants were subjected to deficitirrigation throughout the 2012 season, according to the criteria frequently used by the growers in thearea. T2 (2012), T3 and T4 (2013) were irrigated as T0 except during fruit maturation, in which irrigationwas withheld for 32, 17 and 24 days, respectively. The results indicated that the jujube fruit maturationperiod was clearly sensitive to water deficit. During most of this stage water could enter the fruits viathe phloem rather than via the xylem. From the beginning of water withholding to when maximumwater stress levels were achieved, fruit and leaf turgor were maintained in plants under water deficit.However, a direct relation between turgor and fruit size was not found in jujube fruits, which could bedue to an enhancement of a cell elasticity mechanism (elastic adjustment) which maintains fruit turgorby reducing fruit cells size or to the fact that jujube fruit growth depends on the fruit growth-effectiveturgor rather than just turgor pressure.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2010-19201-C04-01AGRUnspecifiedUnspecifiedEstrategias de manejo del riego deficitario para optimizar la calidad y saludabilidad del melocotón extratemprano y la granada
Government of SpainAGL2013-45922-C2-2-RUnspecifiedUnspecifiedNuevos criterios de riego deficitario en granado. Evaluación de la calidad y funcionalidad de productos hidrosostenibles y aceptación en el mercado nacional e internacional

More information

Item ID: 40713
DC Identifier: http://oa.upm.es/40713/
OAI Identifier: oai:oa.upm.es:40713
DOI: 10.1016/j.agwat.2015.08.024
Official URL: https://doi.org/10.1016/j.agwat.2015.08.024
Deposited by: Memoria Investigacion
Deposited on: 11 Jul 2016 11:54
Last Modified: 14 Mar 2019 14:33
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