title: The combined effect of water status and crop level on Tempranillo wine volatiles.
abstract: BACKGROUND
  The effect of water status and crop level on the volatile composition of Tempranillo wine was investigated over two growing seasons (2010-2011) in Extremadura (Spain). Three water status treatments (T0, Rainfed control; T1, Early regulated deficit irrigation; T2, Late regulated deficit irrigation) were combined with two crop levels treatments (TH, cluster thinning; C, control).
  
  
  RESULTS
  Crop level treatment had a higher effect on individual volatiles analyzed in Tempranillo wine than water status. The combinations of water status and crop level treatments showed effects on all families of compounds with the exception of acetates and volatile fatty acids. Alcohols, C6compounds and phenol volatiles produced the highest concentrations at the lower level of available water and when cluster thinning was applied (T0-TH). However, ethyl ester and lactones showed higher concentrations in regulated deficit irrigation (T1 and T2) and when cluster thinning was not applied.
  
  
  CONCLUSIONS
  The combined effect of rainfed and cluster-thinning treatments (T0-TH) increased the majority of individual aromatic compounds quantified in Tempranillo wines and also showed the highest total odor activity value. © 2016 Society of Chemical Industry.
authors.affiliation: CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Junta de Extremadura), Av. Adolfo Suárez, s/n, 06071, Badajoz, Spain.
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Talaverano
authors.affiliation: CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Junta de Extremadura), Av. Adolfo Suárez, s/n, 06071, Badajoz, Spain.
authors.forename: Esperanza
authors.initials: E
authors.lastname: Valdés
authors.affiliation: CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Junta de Extremadura), Av. Adolfo Suárez, s/n, 06071, Badajoz, Spain.
authors.forename: Daniel
authors.initials: D
authors.lastname: Moreno
authors.affiliation: CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Junta de Extremadura), Av. Adolfo Suárez, s/n, 06071, Badajoz, Spain.
authors.forename: Esther
authors.initials: E
authors.lastname: Gamero
authors.affiliation: CICYTEX-Agricultural Research Center Finca La Orden-Valdesequera (Junta de Extremadura), Crta. A-V, Km 372, 06187, Guadajira, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Mancha
authors.affiliation: Misión Biológica de Galicia Spanish National Research Council (CSIC), El Palacio-Salcedo, 36143, Pontevedra, Spain.
authors.forename: Mar
authors.initials: M
authors.lastname: Vilanova
mesh_terms: D057914:Agricultural Irrigation / Q000379:methods*; D000069599:Crop Production / Q000379:methods*; D005638:Fruit / Q000254:growth & development*; D009812:Odorants; D013030:Spain; D027843:Vitis / Q000737:chemistry / Q000254:growth & development*; D055549:Volatile Organic Compounds / Q000032:analysis; D014920:Wine / Q000032:analysis*
chemical_list: D055549:Volatile Organic Compounds
keywords: Tempranillo; cluster thinning; volatile compounds; water status; wine aroma