Virgin olive oil quality of hedgerow ‘Arbequina’ olive trees under deficit irrigation

García, José María; Morales‐Sillero, Ana; Pérez, Ana G.; Díaz-Espejo, Antonio; Montero, A. J. Rubio; Fernández, J.E.

doi:10.1002/jsfa.7828

Cited by 36 publications

(40 citation statements)

References 31 publications

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“…Regarding PUFA, the control oil showed the highest content but this content was statistically equivalent to that of T2. Similar concentrations of fatty acids were previous reported on “Arbequina” cultivar (Aparicio and Harwood, ; García et al, ).…”

Section: Resultssupporting

confidence: 89%

“…However, ( E )‐hex‐2‐enal (V15) increased its concentration with RDI and was the most abundant compound in T2 oils. Previous research reported negative correlation between water stress and the contents of the compounds V15 and V18 in “Arbequina” cultivar (García et al, ); however, a positive correlation with V15 has been observed in the current study. This difference could be due to the irrigation schedule followed, considering that the majority of studies did not apply RDI during pit hardening period but during the whole plant season.…”

Section: Resultscontrasting

confidence: 87%

“…Several studies reported olive oil fatty acid composition on “Arbequina” cultivar affected by different RDI strategies. This is the case of García et al () who reported that 30% RDI in an “Arbequina” orchard induces an increase in the oleic/linoleic ratio. The same effect was observed by Gomez del Campo and García () using different irrigation strategies in “Arbequina” orchards.…”

Section: Resultsmentioning

confidence: 89%

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“Arbequina” Olive Oil Composition Is Affected by the Application of Regulated Deficit Irrigation during Pit Hardening Stage

Sánchez‐Rodríguez

Kranjac

Marijanović

et al. 2020

J Americ Oil Chem Soc

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Three new regulated deficit irrigation (RDI) treatments were applied to "Arbequina" olive orchards during pit hardening. Oil quality was determined by measuring analytical parameters for olive oil grading, antioxidant activity, total phenol content, fatty acid profile, volatile compounds profile, and sensory analysis. Oils from RDI were classified as "extra virgin olive oil" and their quality was improved due to their higher antioxidant potential (ABTS + [increased~75%] and DPPH˙[increased~25%] assays) and phenols (increased~53%) than control. Concentration of total volatile compounds decreased (~27%) but RDI olive oils showed a more balanced profile (alcohols, aldehydes, and esters). Monounsaturated fatty acid content increased (~5%) and atherogenic and thrombogenic indexes decreased (~8.5%) in RDI olive oil. Regarding sensory analysis, RDI provided more balanced oils with higher fruit aroma than control. Other benefits of RDI olive oil, when compared with oil from full irrigated orchards are reduced use of water and improved functional and sensory quality.

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Section: Resultssupporting

confidence: 89%

Section: Resultscontrasting

confidence: 87%

Section: Resultsmentioning

confidence: 89%

See 1 more Smart Citation

“Arbequina” Olive Oil Composition Is Affected by the Application of Regulated Deficit Irrigation during Pit Hardening Stage

Sánchez‐Rodríguez

Kranjac

Marijanović

et al. 2020

J Americ Oil Chem Soc

View full text Add to dashboard Cite

show abstract

“…In this scale, the pit hardening period was determined when the pit became lignified (shows resistance to cutting). Fernández et al (2013) also call this period the maximum rate of pit hardening. The end-pit-hardening was determined when it was no longer possible to cut the fruit.…”

Section: Methodsmentioning

confidence: 99%

Yield and Water Productivity Responses to Irrigation Cut-off Strategies after Fruit Set Using Stem Water Potential Thresholds in a Super-High Density Olive Orchard

et al. 2017

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An increase in the land area dedicated to super-high density olive orchards has occurred in Chile in recent years. Such modern orchards have high irrigation requirements, and optimizing water use is a priority. Moreover, this region presents low water availability, which makes necessary to establish irrigation strategies to improve water productivity. An experiment was conducted during four consecutive growing seasons (2010–2011 to 2013–2014) to evaluate the responses of yield and water productivity to irrigation cut-off strategies. These strategies were applied after fruit set using midday stem water potential (Ψstem) thresholds in a super-high density olive orchard (cv. Arbequina), located in the Pencahue Valley, Maule Region, Chile. The experimental design was completely randomized with four irrigation cut-off treatments based on the Ψstem thresholds and four replicate plots per treatment (five trees per plot). Similar to commercial growing conditions in our region, the Ψstem in the T1 treatment was maintained between -1.4 and -2.2 MPa (100% of actual evapotranspiration), while T2, T3 and T4 treatments did not receive irrigation from fruit set until they reached a Ψstem threshold of approximately -3.5, -5.0, and -6.0 MPa, respectively. Once the specific thresholds were reached, irrigation was restored and maintained as T1 in all treatments until fruits were harvested. Yield and its components were not significantly different between T1 and T2, but fruit yield and total oil yield, fruit weight, and fruit diameter were decreased by the T3 and T4 treatments. Moreover, yield showed a linear response with water stress integral (SΨ), which was strongly influenced by fruit load. Total oil content (%) and pulp/stone ratio were not affected by the different irrigation strategies. Also, fruit and oil water productivities were significantly greater in T1 and T2 than in the T3 and T4. Moreover, the T2, T3, and T4 treatments averaged 37, 51, and 72 days without irrigation which represented 75–83, 62–76, and 56–70% of applied water compared with T1, respectively. These results suggest that using the T2 irrigation cut-off strategy could be applied in a super-high density olive orchard (cv. Arbequina) because it maintained yields, saving 20% of the applied water.

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“…In fruit trees, regulated deficit irrigation (RDI) has proved to be a powerful tool to reduce shoot growth, improve fruit quality, and save irrigation water by imposing moderate levels of plant water stress during specific stages of crop development [1,2]. Results of RDI experiments have been promising in certain regions and for some fruit crops, such as peach [3][4][5][6], pear [7][8][9], French prune [10], almond [11][12][13], pistachio [14][15][16], apricot [10,17], and olive [18][19][20]. In citrus, yield is often proportional to vegetative growth, which makes the control and regulation of water deficit quite complex.…”

Section: Introductionmentioning

confidence: 99%

Fruit Yield and Quality of ‘Valencia’ Orange Trees under Long-Term Partial Rootzone Drying

2020

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Climate, soil and tree water status, fruit yields and quality of ‘Valencia’ orange trees were monitored over five consecutive seasons (2007–2012) to study the effects of irrigation placement or volume. Three irrigation treatments were imposed: conventional irrigation (CI, 100% of crop evapotranspiration on both sides of the rootzone), partial rootzone drying (PRD, 50% of CI water only on one alternated side of the rootzone) and continuous deficit irrigation (DI, 50% of CI water on both sides of the rootzone). Yield parameters were generally not affected by PRD, and only yield per tree was lower in DI than CI trees. Fruit size and juice content were also reduced by DI, and not by PRD. Both PRD and DI increased juice soluble solids and acidity, vitamin C and carotenoid concentrations, as well as fruit, juice and sugar productivity per unit of irrigation water. Overall, the straight reduction of irrigation volumes by ~55% (DI) induced an average of 4.4% leaf dehydration, which caused significant fruit size reductions and a 3.4% reduction in juice yield, corresponding to a loss of about 2.6 tons of juice and 261 kg of sugars per hectare and year. On the other hand, water savings of about 2 mega liters per hectare and year with PRD caused a mild 2.3% leaf dehydration and mainly fruit quality improvements, indicating that PRD is a sustainable irrigation strategy for ‘Valencia’ orange.

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Virgin olive oil quality of hedgerow ‘Arbequina’ olive trees under deficit irrigation

Cited by 36 publications

References 31 publications

“Arbequina” Olive Oil Composition Is Affected by the Application of Regulated Deficit Irrigation during Pit Hardening Stage

“Arbequina” Olive Oil Composition Is Affected by the Application of Regulated Deficit Irrigation during Pit Hardening Stage

Yield and Water Productivity Responses to Irrigation Cut-off Strategies after Fruit Set Using Stem Water Potential Thresholds in a Super-High Density Olive Orchard

Fruit Yield and Quality of ‘Valencia’ Orange Trees under Long-Term Partial Rootzone Drying

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