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286072

Effect of Chemical Loosening agents on Harvesting Efficiency and Fruit Quality of Olive Trees

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Horticulture

Abstract

A field experiment was carried out during 2017, 2018 and 2019 seasons on tenyear old "Dolce" olive trees grown at private orchard, at Siwa oasis, Marsa Matrouh governorate, Egypt. The aim of this study is evaluating the effect of methionine, ethephon and thiourea as assistant treatments to hand vibration harvest and their effects on leaf (drop and total chlorophyll content) and fruit quality as well as their effect on the next flowering of "Dolce" olive trees. Trees were sprayed, two weeks prior to harvest date with one of the following solutions: (1) control (tap water), (2) methionine at 1000 or 2000 ppm, (3) ethephon at 2000 or 3000 ppm, (4) thiourea at 1000 or 2000 ppm. Control trees recorded the highest fruit detachmentforce, the highest percentage of hand- picked fruits and the least shed leaves per tree. Ethephon, thiourea and methionine treatments reduced fruit detachment force and supported hand vibration harvest, but increased leaf drop over control trees. All tested treatments gave the highest positive effect on fruit anthocyanin and carotene content as compared with the control. Moreover, perfect flowers and fruit set percentages in the following year responded positively to all treatments, meanwhile, ethephon treatment at 3000 ppm proved to be the most efficient treatments in this concern. Methionine succeeded in enhancing harvesting efficiency percentage and improved fruit color, while it resulted in the lowest effect on fruit removal force, hand- picked fruits percentage and total leaf drop compared to ethephon and thiourea.
 

DOI

10.21608/asejaiqjsae.2023.286072

Keywords

"Dolce" olive, methionine, Ethephon, thiourea, Harvesting efficiency percentage, Next flowering

Authors

First Name

Amro

Last Name

Salama

MiddleName

Salama Mohamed

Affiliation

Desert Research Center, Cairo, Egypt

Email

amrosmss@yahoo.com

City

Cairo

Orcid

0000-0003-3957-248x

Volume

44

Article Issue

1

Related Issue

39130

Issue Date

2023-03-01

Receive Date

2023-01-05

Publish Date

2023-03-30

Page Start

25

Page End

35

Print ISSN

1110-0176

Online ISSN

2536-9784

Link

https://asejaiqjsae.journals.ekb.eg/article_286072.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=286072

Order

3

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Effect of Chemical Loosening agents on Harvesting Efficiency and Fruit Quality of Olive Trees

Details

Type

Article

Created At

23 Dec 2024