Abstract
This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.). Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI). Results showed that mechanical harvesting damaged the olives and reduced olive oil quality by increasing free fatty acids (FFAs) and peroxide value, and by decreasing fruitiness, stability, bitterness, and pungency. DI resulted in increased fruit dry weight and oil content, which could be explained by their reduced crop load (9.3% of crop reduction for DI and 23.9% for SDI). DI did not affect olive oil characteristics, whereas SDI increased stability, fruitiness, and bitterness, and decreased polyunsaturated fatty acid (PUFAs). In conclusion, mechanical harvesting tended to damage the fruit, resulting in lower quality olive oil, the DI strategy neither affected fruit nor olive oil characteristics, whereas the SDI strategy positively affected oil quality when greater water restrictions were applied.
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Claims 9
Claim · model-written summary
Mechanical harvesting increased free fatty acids and peroxide value of Arbequina olive oil.
- Taxon
- Olea europaea
Olea europaeae0 - Treatment
- mechanical harvestinge1
- Outcome
- free fatty acids (FFAs) and peroxide valuee1
- Direction
- increasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e1“Results showed that mechanical harvesting damaged the olives and reduced olive oil quality by increasing free fatty acids (FFAs) and peroxide value, and by decreasing fruitiness, stability, bitterness, and pungency”
Claim · model-written summary
Mechanical harvesting decreased fruitiness, stability and bitterness of Arbequina olive oil.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- mechanical harvestinge1
- Outcome
- fruitiness, stability, bitternesse1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e1“Results showed that mechanical harvesting damaged the olives and reduced olive oil quality by increasing free fatty acids (FFAs) and peroxide value, and by decreasing fruitiness, stability, bitterness, and pungency”
Claim · model-written summary
Mechanical harvesting decreased pungency of Arbequina olive oil.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- mechanical harvestinge1
- Outcome
- pungencye1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e1“Results showed that mechanical harvesting damaged the olives and reduced olive oil quality by increasing free fatty acids (FFAs) and peroxide value, and by decreasing fruitiness, stability, bitterness, and pungency”
Claim · model-written summary
Deficit irrigation during pit hardening increased fruit dry weight and oil content compared with the control.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- deficit irrigation (DI) during pit hardeninge2
- Outcome
- fruit dry weight and oil contente3
- Direction
- increasede3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e3“DI resulted in increased fruit dry weight and oil content, which could be explained by their reduced crop load (9.3% of crop reduction for DI and 23.9% for SDI)”
Claim · model-written summary
Deficit irrigation reduced crop load by 9.3%.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- DIe3
- Outcome
- crop loade3
- Direction
- reducede3
- Value
- 9.3%e3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e3“DI resulted in increased fruit dry weight and oil content, which could be explained by their reduced crop load (9.3% of crop reduction for DI and 23.9% for SDI)”
Claim · model-written summary
Subsurface deficit irrigation reduced crop load by 23.9%.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- SDIe2
- Outcome
- crop loade3
- Direction
- reducede3
- Value
- 23.9%e3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e3“DI resulted in increased fruit dry weight and oil content, which could be explained by their reduced crop load (9.3% of crop reduction for DI and 23.9% for SDI)”
Claim · model-written summary
Deficit irrigation did not affect olive oil characteristics.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- DIe5
- Outcome
- olive oil characteristicse5
- Direction
- did not affecte5
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e5“DI did not affect olive oil characteristics”
Claim · model-written summary
Subsurface deficit irrigation increased stability, fruitiness and bitterness of olive oil when greater water restrictions were applied.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- SDIe6
- Outcome
- stability, fruitiness, and bitternesse6
- Direction
- increasede6
- Qualifier
- when greater water restrictions were appliede7
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e6“SDI increased stability, fruitiness, and bitterness, and decreased polyunsaturated fatty acid (PUFAs)”
e7“the SDI strategy positively affected oil quality when greater water restrictions were applied”
Claim · model-written summary
Subsurface deficit irrigation decreased polyunsaturated fatty acids in olive oil.
- Taxon
- Olea europaeaOlea europaeae0
- Treatment
- SDIe6
- Outcome
- polyunsaturated fatty acid (PUFAs)e6
- Direction
- decreasede6
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study describes the effects of mechanical harvesting and irrigation on quality in ‘Arbequina’ olive oil ( Olea europaea L.)”
e2“Irrigation treatments included a control, deficit irrigation (DI) during pit hardening, and subsurface deficit irrigation (SDI)”
e6“SDI increased stability, fruitiness, and bitterness, and decreased polyunsaturated fatty acid (PUFAs)”
The same questions in other papers
irrigation · quality: oil · Olea europaea (common olive)Positive and negative results
14 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- no effect
27 papers more in this group
See all 31 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.