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“yield decrease”

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2010 ’20

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Organism: Olea europaea ✕

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Combined reclaimed water and deficit irrigation significantly reduced olive oil yield by 25% in 2018.

Taxon: olive treesOlea europaeae0
Treatment: combination of both stresses (RW and RDI)e4
Outcome: oil yielde4
Direction: reducede4
Value: 25% less in 2018e4
Comparator: control treese5

Verbatim

e4
“The combination of both stresses (RW and RDI) neither did decrease the fruit yield; however, it significantly reduced oil yield (25% less in 2018)”
✓ located verbatim in the source · abstract, characters 1080–1226

e5
“oil content per fruit dry weight was strongly reduced (40%) compared to control trees”
✓ located verbatim in the source · abstract, characters 1233–1318

e0
“olive trees cv Arbosana”
✓ located verbatim in the source · abstract, characters 562–585

Title

Ripening Indices, Olive Yield and Oil Quality in Response to Irrigation With Saline Reclaimed Water and Deficit Strategies

Cristina Romero-Trigueros; Gaetano Alessandro Vivaldi; Emilio Nicolás Nicolás; et al. Frontiers in Plant Science 2019. doi:10.3389/fpls.2019.01243

Other claims from this paper (17)

Intervention effect Reclaimed water without water restriction increased olive fruit yield by 35% compared with control trees.
Intervention effect Reclaimed water without water restriction did not result in higher olive oil yield.
Intervention effect Regulated deficit irrigation did not decrease olive fruit yield.
Intervention effect Regulated deficit irrigation tended to decrease olive weight.
Intervention effect Regulated deficit irrigation increased olive oil yield by about 14.5%.
Intervention effect Combined reclaimed water and deficit irrigation did not decrease olive fruit yield.
Intervention effect Combined reclaimed water and deficit irrigation strongly reduced oil content per fruit dry weight by 40%.
Intervention effect Both RDI treatments lowered acidity levels in olive paste compared with full irrigation treatments.
Intervention effect Both RDI treatments reduced oil extractability and fatty yield.
Intervention effect Reclaimed water exposure decreased olive oil quality.
Intervention effect Reclaimed water exposure reduced oleic acid in olive oil.
Intervention effect Reclaimed water exposure increased the C18:2/C18:3 ratio in olive oil.
Intervention effect Reclaimed water exposure increased peroxides in olive oil.
Intervention effect Reclaimed water improved total polyphenols in olive.
Intervention effect Regulated deficit irrigation improved total polyphenols in olive.
Observation In all cases the olive oil parameters met the legislation.
Recommendation Reclaimed water and regulated deficit irrigation have potential to manage olive oil production.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus G7 significantly improved net carbon fixation of olive plantlets under saline stress.

Taxon: Olea europaea L.Olea europaeat0
Treatment: G7e1
Outcome: net carbon fixatione2
Direction: improvede2

Not reportedComparator

Verbatim

t0
“Olea europaea L. plantlets”
✓ located verbatim in the source · title, characters 50–76

e1
“G7 prevented photosynthetic imbalance under saline stress, increasing the maximum photosynthetic efficiency of photosystem II (Fv/Fm) and energy dissipation (NPQ) and protecting against photooxidative stress”
✓ located verbatim in the source · abstract, characters 542–749

e2
“despite the decrease in effective PSII quantum yield (ΦPSII), net carbon fixation was significantly improved”
✓ located verbatim in the source · abstract, characters 770–878

Title

Bacillus G7 improves adaptation to salt stress in Olea europaea L. plantlets, enhancing water use efficiency and preventing oxidative stress

Estrella Galicia-Campos; Ana García-Villaraco; Ma. Belén Montero-Palmero; et al. Scientific Reports 2023. doi:10.1038/s41598-023-49533-z

Other claims from this paper (9)

Intervention effect Bacillus G7 increased the maximum photosynthetic efficiency of PSII (Fv/Fm) and energy dissipation (NPQ) of olive plantlets under saline stress.
Intervention effect Bacillus G7 protected olive plantlets against photooxidative stress under saline stress.
Intervention effect Bacillus G7 decreased the effective PSII quantum yield (ΦPSII) of olive plantlets under saline stress.
Intervention effect Bacillus G7 significantly increased osmolytes and antioxidants in olive plantlets under saline stress.
Intervention effect Bacillus G7 significantly improved water use efficiency (WUE) of olive plantlets under saline stress.
Intervention effect Bacillus G7 upregulated ABA synthesis- and ABA-sensing-related genes in olive plantlets under saline stress.
Intervention effect Bacillus G7 strongly downregulated the PLC2 phosphatase family in olive plantlets under saline stress.
Intervention effect Bacillus G7 upregulated ion homeostasis-related genes in olive plantlets under saline stress.
Intervention effect The ion homeostasis response was activated faster in G7-treated olive plantlets, as suggested by qPCR data.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nano-imidacloprid application significantly decreased pest infestations to 6±6.6 larvae in Ismailia, compared with the control.

Taxon: Olive treeOlea europaeae0
Treatment: nano Imidacloprid applicatione6
Interactor: Z. pyrinaZeuzera pyrinae2pest
Outcome: pests infestationse6
Direction: decreasee6
Value: 6±6.6e6
Qualifier: 95±1.9 and 96±3.4 larvae in the controle6
Comparator: controle6
Setting: Ismailiae5

Verbatim

e0
“Olive tree is subjected to attack by many insect pest species that effect on the yield quality and quantity”
✓ located verbatim in the source · abstract, characters 0–107

e2
“The effect of Imidacloprid was tested under laboratory and field conditions against Z. pyrina”
✓ located verbatim in the source · abstract, characters 421–514

e5
“Under field conditions, the infestations were significantly decreased to 23±8.9 and13±2.1 individuals after treated with Imidacloprid in Ebn Malek and Ismailia, respectively”
✓ located verbatim in the source · abstract, characters 713–886

e6
“In the same last places the nano Imidacloprid application showed a significant decrease in the pests infestations reached to 15±5.1 and 6±6.6 larvae as compared to 95±1.9 and 96±3.4 larvae in the control”
✓ located verbatim in the source · abstract, characters 888–1091

Title

Control of leopard Zeuzera pyrina (L.) (Lepidoptera: Cossidae), by imidaclorprid in olive Trees.

Sabbour M. Egyptian Academic Journal of Biological Sciences F Toxicology & Pest Control 2017. doi:10.21608/eajbsf.2017.17040

Other claims from this paper (6)

Observation Imidacloprid had an LC50 of 120 ppm against Zeuzera pyrina in olive pest tests.
Observation Nano-imidacloprid had an LC50 of 47 ppm against the target pests of olive.
Intervention effect Imidacloprid significantly decreased Z. pyrina infestations to 23±8.9 in Ebn Malek under field conditions.
Intervention effect Imidacloprid significantly decreased Z. pyrina infestations to 13±2.1 in Ismailia under field conditions.
Intervention effect Nano-imidacloprid application significantly decreased pest infestations to 15±5.1 larvae in Ebn Malek, compared with the control.
Intervention effect Nano-imidacloprid applications significantly increased olive yield weights in both regions.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nano-imidacloprid application significantly decreased pest infestations to 15±5.1 larvae in Ebn Malek, compared with the control.

Taxon: Olive treeOlea europaeae0
Treatment: nano Imidacloprid applicatione6
Interactor: Z. pyrinaZeuzera pyrinae2pest
Outcome: pests infestationse6
Direction: decreasee6
Value: 15±5.1e6
Qualifier: 95±1.9 and 96±3.4 larvae in the controle6
Comparator: controle6
Setting: Ebn Maleke5

Verbatim

e0
“Olive tree is subjected to attack by many insect pest species that effect on the yield quality and quantity”
✓ located verbatim in the source · abstract, characters 0–107

e2
“The effect of Imidacloprid was tested under laboratory and field conditions against Z. pyrina”
✓ located verbatim in the source · abstract, characters 421–514

e5
“Under field conditions, the infestations were significantly decreased to 23±8.9 and13±2.1 individuals after treated with Imidacloprid in Ebn Malek and Ismailia, respectively”
✓ located verbatim in the source · abstract, characters 713–886

e6
“In the same last places the nano Imidacloprid application showed a significant decrease in the pests infestations reached to 15±5.1 and 6±6.6 larvae as compared to 95±1.9 and 96±3.4 larvae in the control”
✓ located verbatim in the source · abstract, characters 888–1091

Title

Control of leopard Zeuzera pyrina (L.) (Lepidoptera: Cossidae), by imidaclorprid in olive Trees.

Sabbour M. Egyptian Academic Journal of Biological Sciences F Toxicology & Pest Control 2017. doi:10.21608/eajbsf.2017.17040

Other claims from this paper (6)

Observation Imidacloprid had an LC50 of 120 ppm against Zeuzera pyrina in olive pest tests.
Observation Nano-imidacloprid had an LC50 of 47 ppm against the target pests of olive.
Intervention effect Imidacloprid significantly decreased Z. pyrina infestations to 23±8.9 in Ebn Malek under field conditions.
Intervention effect Imidacloprid significantly decreased Z. pyrina infestations to 13±2.1 in Ismailia under field conditions.
Intervention effect Nano-imidacloprid application significantly decreased pest infestations to 6±6.6 larvae in Ismailia, compared with the control.
Intervention effect Nano-imidacloprid applications significantly increased olive yield weights in both regions.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Soil organic matter content improved significantly under olive-chickpea and olive-lentil intercropping compared with monoculture.

Taxon: olive treeOlea europaeae0
Treatment: olive-chickpea and olive-lentil treatmentse2
Outcome: Soil organic matter contente2
Direction: improvede2
Comparator: monoculturee2

Verbatim

e0
“The results showed that all intercropping crops did not decrease the olive tree yield compared to the olive tree in monoculture”
✓ located verbatim in the source · abstract, characters 953–1080

e2
“Soil organic matter content significantly improved for olive-chickpea and olive-lentil treatments compared to monoculture and to the other intercropping”
✓ located verbatim in the source · abstract, characters 1202–1354

Title

The effect of intercropping crop type on soil fertility, olive trees productivity and quality in Moroccan agroforestry systems

Inass Zayani; Mohammed Ammari; Laïla Ben Allal; et al. Vegetos 2025. doi:10.1007/s42535-024-01132-7

Other claims from this paper (4)

Intervention effect Intercropping did not decrease olive tree yield compared with olive monoculture.
Intervention effect Olive leaf potassium levels were higher in olive trees without intercropping at the fruit growth stage.
Recommendation Legumes, especially chickpeas, are good crops to associate with the olive tree.
Recommendation Agroforestry intercropping can be an effective practice for the sustainable production of olive orchards.

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