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Open AccessArticle

Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds

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Center “Las Torres”, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Carretera Sevilla-Cazalla km 12.2, Alcalá del Río, 41200 Seville, Spain
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Research Group “Food Quality and Safety”, Department of Agro-Food Technology, University Miguel Hernández-EPSO, Carretera de Beniel, km 3.2, 03312 Orihuela, Spain
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Center “Camino de Purchil”, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Camino de Purchil s/n, 18004 Granada, Spain
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Research Group “Plant Production and Technology”, Department of Plant Science and Microbiology, University Miguel Hernández-EPSO, Carretera de Beniel, km 3.2, 03312 Orihuela, Spain
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Col. Centro, Department of Research and Postgraduate Studies in Food, Sonora University, Blvd. Luis Encinas y Rosales s/n, C.P., Hermosillo 83000, Mexico
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Author to whom correspondence should be addressed.
Water 2020, 12(12), 3336; https://doi.org/10.3390/w12123336
Received: 6 October 2020 / Revised: 19 November 2020 / Accepted: 23 November 2020 / Published: 27 November 2020
(This article belongs to the Special Issue Water Management in Woody Crops: Challenges and Opportunities)
The Mediterranean region is one of the most water-scarce areas worldwide and is considered a climate-change hotspot. To assure the viability and competitiveness of irrigated agriculture, it is vital to implement strategies that can maximize water saving without compromising yield. Deficit irrigation (DI) for cultivating drought-tolerant species such as almond (Prunus dulcis (Mill.) D.A. Webb) can help in achieving this goal, while at the same time improving fruit chemical composition. This work evaluated the effect of DI techniques and cultivars on the chemical composition of almonds (cvs. Marta, Guara, and Lauranne) in order to elucidate the most suitable irrigation dose under water-scarcity scenarios. Three irrigation regimes were imposed: a control treatment (FI), which was fully irrigated, receiving 100% of the irrigation requirement (IR), and two sustained-deficit irrigation (SDI) strategies that received 75% (SDI75) and 65% (SDI65) of IR. Significant differences among cultivars and irrigation treatments were observed for antioxidant activity and organic acid, sugar, and fatty acid content, which were increased by the SDI strategies. In addition, highly significant correlations were found between leaf-water potential and components such as fumaric acid, sugars, and fatty acids. In terms of the cultivars, cv. Marta showed the highest antioxidant activity, cv. Guara was the richest in organic acids, and cv. Lauranne had the highest fatty acid content. Consequently, SDI strategies improved almond quality parameters related to their nutritional and sensory composition, with significant water savings (reductions of 25–35%) and without important yield loss. View Full-Text
Keywords: water stress; bioactive compounds; HydroSOStainable products; fatty acids; Prunus dulcis water stress; bioactive compounds; HydroSOStainable products; fatty acids; Prunus dulcis
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MDPI and ACS Style

Gutiérrez-Gordillo, S.; Lipan, L.; Durán Zuazo, V.H.; Sendra, E.; Hernández, F.; Hernández-Zazueta, M.S.; Carbonell-Barrachina, Á.A.; García-Tejero, I.F. Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds. Water 2020, 12, 3336. https://doi.org/10.3390/w12123336

AMA Style

Gutiérrez-Gordillo S, Lipan L, Durán Zuazo VH, Sendra E, Hernández F, Hernández-Zazueta MS, Carbonell-Barrachina ÁA, García-Tejero IF. Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds. Water. 2020; 12(12):3336. https://doi.org/10.3390/w12123336

Chicago/Turabian Style

Gutiérrez-Gordillo, Saray; Lipan, Leontina; Durán Zuazo, Víctor H.; Sendra, Esther; Hernández, Francisca; Hernández-Zazueta, Martín S.; Carbonell-Barrachina, Ángel A.; García-Tejero, Iván F. 2020. "Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds" Water 12, no. 12: 3336. https://doi.org/10.3390/w12123336

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