application · Yield · Olea europaea (common olive)

Induction of Abscission of Olive Fruits by Maleic Hydrazide · 1955

• positive
  Maleic hydrazide foliage sprays induced fruit abscission in olive trees.

Evaluation of (2-Chloroethyl)methylbis (phenylmethoxy)silane (CGA-15281) as a Chemical Fruit Abscising Agent for Olive Using Detached Shoots1 · 1982

• positive
  Foliar sprays of CGA-15281 produced greater fruit abscission than stem feeding in olive shoots.

  compared with stem feeding

• positive
  Foliar sprays of CGA-15281 produced lower leaf abscission than stem feeding in olive shoots.

  compared with stem feeding

Foliar Boron Application Improves Flower Fertility and Fruit Set of Olive · 2001

• positive
  Foliar boron application increased both the percentage of perfect flowers and fruit set in olive.
• no effect
  Foliar boron application had no effect on olive pollen germination in either year.
• no effect
  The increase in fruit set from foliar boron application was not accompanied by a reduction in olive fruit size.

cited by 3 papers here

FOLIAR FERTILIZATION: A VALID ALTERNATIVE FOR OLIVE CULTIVAR · 2002

• positive
  Foliar application of macro-elements increased olive tree productivity as an addition to soil fertilization and, to a lesser extent, as an alternative to it.

  compared with the fertilization to soil

• positive
  Foliar sprays on olive trees (cv. Carolea) increased vegetative parameters and yield in the first two years.

cited by 1 paper here

EFFECT OF GIRDLING AND FOLIAR APPLICATION OF SOME NUTRIENTS ON GROWTH, FLOWERING, YIEL AND FRUIT QUALITY OF MANZANtLLO OLIVE TREES GROWN IN SANDY SOIL · 2003

• positive
  Girdling and/or nutrient sprays stimulated yield and mean fruit weight of olive compared with the control treatment.

  compared with ched treatment

THE EFFECT OF SOIL MULCHING AND FOLIAR SPRAY OF POTASSIUM CHLORIDE ON FLOWERING, FRUITING, FRUIT CHARACTERISTICS AND YIELD OF OLIVE TREES CV. MANZANILLO AT NORTH SINAI PENINSULA. · 2005

• positive
  Mulching and KCl foliar spray significantly enhanced tree yield.
• positive
  Spraying 2 % KCl, followed by 1 % KCl, increased initial fruit set and fruit retention over control.

  compared with control trees

J. Agric. Sci. Mansoura Univ., 31 (12): 7937 - 7952, 2006 STUDIES OF “KALAMATA” OLIVE CULTIVAR GRAFTED ONTO DIFFERENT ROOTSTOCKS AND FOLIAR GA; · 2006

• positive
  Picual rootstock with one 300 ppm spray gave more branches in the first season.

  compared with other treatments

Responses of olive trees (cv. Chemlali) after five years of experiment to potassium mineral nutrition under rainfed condition · 2009

• positive
  Foliar potassium at 100% of tree need significantly raised olive yield over the control.

  compared with the control

• positive
  Foliar spray increased average olive fruit weight and pit ratio.

Roles of gibberellic acid and zinc sulphate in increasing size and weight of olive fruit · 2009

• positive
  GA3 at 30 ppm improved yield more than other GA3 concentrations and control.

  compared with other concentrations and control

cited by 1 paper here

Effect of GA3 and Zinc Sulfate on Fruit Yield and Oil Percentage of ‘Shengeh’ Olive Trees · 2010

• positive
  A 0.5% zinc sulfate and 45 ppm GA3 spray gave maximum fruit retention of 90%.

cites 1 paper here

Olive Fertility as Affected by Cross-Pollination and Boron · 2012

• positive
  Foliar boron application enhanced in vitro pollen germination of olive.

cites 1 paper here

Effect of Macro and Micronutrients Sprays on Fruit Quality and Quantity of 'Zard' and 'Rowghani' Olive (Olea europaea L.) Cultivars in Northern Iran · 2012

• positive
  Spraying macro and micronutrients with emulsifier gave the highest fruit yield, fruit weight and pulp weight in both olive cultivars.

  compared with Control

cited by 1 paper here

Composted Olive Mill By-products: Compost Characterization and Application on Olive Orchards · 2013

• positive
  Soil application of composted olive mill by-products increased olive yield by 9% on average compared with untreated soils.

  compared with untreated soils

Effect of Some Chemical Thinning Agents on Fruit Set of Manzanillo and Eggizi Shami Olive Cultivars · 2015

• positive
  Urea reduced fruit set more effectively than GA3 and NAA.

  compared with GA3 and NAA

Effect of growth retardants on growth, flowering and physiological characteristics of olive cultivar Leccino under rain-fed conditions of Himachal Pradesh, India · 2016

• positive
  November soil drenching with PP333 at 4 g a.i tree-1 increased olive fruit set to 7.57%.

Foliar Applications of Zinc and Boron on Fruit Set and Some Fruit Quality of Olive · 2016

• positive
  Boric acid spray increased initial olive fruit set to 76.9%.

Influence of Foliar Spraying with Macro and Microelements on the Growth and Productivity of Olive Trees in Idleb Province · 2020

• positive
  More spray applications significantly increased productivity per tree.

  compared with control

cites 3 papers here

Effect of boron spray at different phenological stages on fruit set, mineral composition, and carbohydrates content of three olive cultivars · 2021

• positive
  Koroneiki had the maximum fruit set percentage with boron sprays at stages 1+3 or 2+3.
• positive
  The authors infer that appropriately timed boron spray increased fruit set, especially in Koroneiki.

Combined Sulfur and Nitrogen Foliar Application Increases Extra Virgin Olive Oil Quantity without Affecting Its Nutritional Quality · 2022

• positive
  Fertilization increased fruit yield.

Foliar Application of Nano-Silicon Improves the Physiological and Biochemical Characteristics of ‘Kalamata’ Olive Subjected to Deficit Irrigation in a Semi-Arid Climate · 2022

• positive
  Foliar nano-silicon at 90% IWR reduced fruit drop percentage of Kalamata olive trees compared with 80% IWR.

  compared with 80% IWR

• positive
  Foliar nano-silicon at 90% IWR improved yield and fruit weight of Kalamata olive trees compared with 80% IWR.

  compared with 80% IWR

Importance of potassium and phosphorus in winter fertilization for olive trees · 2022

• positive
  Spraying MKP at 4% improved olive tree yield relative to control.

  compared with control

Response of “Kalllmata” Olive Cultivar to The Foliar Application of Moringa Extract, Boron, and Zinc · 2022

• positive
  Foliar moringa, zinc, and boron improved flower number and fruit set in olive.

cites 1 paper here

RESPONSE OF OLIVE TREES CULTIVAR AL-ASHRASSI TO NUTRITION WITH CHELATED IRON (CHI) AND DRY YEAST EXTRACT (DYE) · 2022

• positive
  Foliar dry yeast extract at 20 g L-1 increased total yield of olive trees to 14.03 kg per tree.
• positive
  Foliar dry yeast extract at 20 g L-1 increased fruit weight of olive trees.
• positive
  Foliar chelated iron at 200 mg L-1 increased fruit weight of olive trees.

USE OF ANTI-APICAL DOMINANCE TO ENHANCE LATERAL BRANCHING AND FRUIT SET IN OLIVE TREES BY SAFE TREATMENTS · 2023

• positive
  Foliar application of anti-apical dominance compounds increased the number of fruits per mature branch of olive trees compared with the control.

  compared with control

• positive
  Foliar application of anti-apical dominance compounds increased fruit yield per tree of olive trees compared with the control.

  compared with control

• positive
  Foliar application of anti-apical dominance compounds increased the number of branches of olive trees compared with the control.

  compared with control

Influence of Spraying Some Biostimulants on Yield, Fruit Quality, Oil Fruit Content and Nutritional Status of Olive (Olea europaea L.) under Salinity · 2023

• positive
  Spraying MLE and SWE increased fruit yields in olive trees.
• positive
  Spraying MLE and SWE increased fruit set percentages in olive trees.

Effects of GA3 and Plant Extracts Spraying on Aggezi Olive Tree Growth and Fruiting in Sohag Governorate, Egypt · 2023

• positive
  All sprays with GA3, lemongrass extract and moringa extract enhanced vegetative development, fruit set and yield of Aggezi olive trees compared with the control.

  compared with the control

Enhancing the Yield of Mature Olive Trees via Comparative Fertilization Strategies, including a Foliar Application with Fulvic and Humic Acids, in Non-Irrigated Orchards with Calcareous and Non-Calcareous Soils · 2024

• positive
  Annual foliar organic product application in alkaline soil yielded the highest fruit yield and oil production.

cited by 1 paper here

Effect of amino acids application on flowering, vegetation, yield, and oil of olive ( Olea europaea L.) variety ‘Koroneiki’ · 2024

• positive
  Three sprays of AMINO-16 (A16-A) significantly increased the number of inflorescences, fruit set and number of fruits per shoot in Koroneiki olives relative to the control.

  compared with Control

• positive
  Fruit yield under A16-A was higher than the control by 10.6%.

  compared with the control

cites 1 paper here

Response of Olive Trees (Olea europaea L.) cv. Zaity to Bio health and Foliar Spray of Tecamin max and Boron · 2024

• positive
  Foliar spraying of tecamin max at 15 ml/L significantly increased fruit weight, length and width of olive relative to the control.

  compared with control treatment

• positive
  Foliar spraying of tecamin max at 15 ml/L significantly increased total yield per tree of olive relative to the control.

  compared with control treatment

• positive
  Foliar boron spray, especially at 300 mg/L, significantly increased fruit weight, length and width of olive relative to the comparison treatment.

  compared with comparison treatment

• positive
  Foliar boron spray, especially at 300 mg/L, significantly increased total yield per tree of olive relative to the comparison treatment.

  compared with comparison treatment

Olive Performance under the Soil Application of Humic Acid and the Spraying of Titanium and Zinc Nanoparticles under Soil Salinity Stress · 2024

• positive
  The treatments improved flower number and fruit set.
• positive
  The treatments improved fruit yield, weight and size.

EFFECT OF DIFFERENT TYPES OF FERTILIZERS ON THE GROWTH AND PRODUCTIVITY OF OLIVE TREES (Olea europaea L.) CV. ARBEQUINA · 2024

• positive
  Sea force at 20 ml per L significantly increased olive fruit set, yield and oil percentage.
• positive
  Blaukorn at 200 g per tree significantly increased olive leaf area, fruit dimensions, fruit weight and soluble solids.

Optimizing Olive Production: The Role of Foliar Fertilizers in Boosting Yield and Quality · 2024

• positive
  Foliar K applications positively affected olive yield in the second year.

  compared with basic fertilization

cites 1 paper here

EFFECT OF DIFFERENT TYPES OF FERTILIZERS ON THE GROWTH AND PRODUCTIVITY OF OLIVE TREES (Olea europaea L.) CV. ARBEQUINA · 2024

• positive
  Soil application of chicken manure at 10 kg tree-1 significantly increased fruit set, fruit length and fruit width.
• positive
  Soil application of Blaukorn at 200 g tree-1 significantly increased average leaf area, fruit length and fruit width.

EFFECT OF ADDITION COW MANURE AND SPRAYING WITH TRIACONTANOL ON THE GROWTH AND YIELD OF OLIVE TREES CV. KHASTAWI · 2025

• positive
  Triacontanol spraying at 20 mg L⁻1 increased overall yield in Khastawi olive.
• positive
  Triacontanol spraying at 20 mg L⁻1 increased average fruit weight in Khastawi olive.

Impact of Olive Trees cv. Sorani to Foliar Application with Potassium and Zinc Fertilizer · 2026

• positive
  Potassium and zinc sprays significantly improved olive fruit weight, dimensions and tree yield.