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10567

Pre-harvest Treatments to Reduce Incidence of the Soft Scald and to Enhance Coloration of “Anna” Apple Fruits

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Horticulture (Vegetable, Pomology and Ornamentals)

Abstract

Few attempts have been made to overcome problem of the soft scald. Many factors and conditions are associated with such physiological disorder. In this study, seven-years-old "Anna" apple trees were preharvest sprayed during 2016 and 2017 growing seasons with lisophos 1000mg/ litre, potassium sulphate 2%, calcium sulphate 2% and their combinations in order to investigate their influence on initiation of the soft scald and fruit quality especially fruit coloration at harvest as well as keeping fruit quality during storage for seven days on refrigerator. Lisophos alone or plus either calcium sulphate or potassium sulphate reduced initiation of the soft scald at harvest as compared with untreated fruits, in addition to retarding the loss of fruitfirmness. The application of potassium sulphate alone or incorporated with lisophos treatment increased fruit diameter, fruit TSS, total sugars, peel anthocyanin and carotene contents but decreased fruit acidity, peel chlorophyll a and b as compared with control. After seven days of refrigerated shelf life, the application of lisophos plus calcium sulphate retarding the loss of flesh firmness, reduced weight loss% and incidence of the soft scald percentage. This study provided evidences about the possibility of reducing incidence of the soft scald in "Anna" apples by preharvest application of lisophos plus either calcium sulphate or potassium sulphate, while, enhancing fruit quality and coloration.

DOI

10.21608/ajas.2018.10567

Keywords

Soft Scald, Apple fruits, lisophos, pre-harvest, calcium, potassium, Storage, Anthocyanin

Authors

First Name

K.

Last Name

Farag

MiddleName

M.

Affiliation

Horticulture Department (Pomology), Faculty of Agriculture, Damanhour University, Egypt.

Email

-

City

Damanhour

Orcid

-

First Name

S.

Last Name

Attia

MiddleName

M.

Affiliation

Horticulture Department (Pomology), Faculty of Agriculture, Damanhour University, Egypt.

Email

said.attia@agr.dmu.edu.eg

City

Damanhour

Orcid

-

Volume

49

Article Issue

2

Related Issue

1607

Issue Date

2018-06-01

Receive Date

2018-05-14

Publish Date

2018-05-22

Page Start

60

Page End

74

Print ISSN

1110-0486

Online ISSN

2356-9840

Link

https://ajas.journals.ekb.eg/article_10567.html

Detail API

https://ajas.journals.ekb.eg/service?article_code=10567

Order

5

Type

Original Article

Type Code

62

Publication Type

Journal

Publication Title

Assiut Journal of Agricultural Sciences

Publication Link

https://ajas.journals.ekb.eg/

MainTitle

Pre-harvest Treatments to Reduce Incidence of the Soft Scald and to Enhance Coloration of “Anna” Apple Fruits

Details

Type

Article

Created At

22 Jan 2023