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318947

STUDIES ON STRAWBERRY LEAF SPOT DISEASE IN EGYPT

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Last updated: 24 Dec 2024

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Abstract

        Fungal diseases of strawberry are important worldwide and occur in all parts of the plant. Alternaria alternata and Botrytis cinerea are the major causal agents of the leaf spots.
        Survey and distribution of strawberry leaf spot were carried out  in EL-Sharkia and EL-Ismailia governorates. 12 and 20 samples were collected from two governorates with 25 and 35 average of disease incidence, respectively. Isolation and identification of the causal pathogen.  Alternaria alternata and Botrytis cinerea were identified as the causal organisms of strawberry leaf spot disease.
        Pathogenicity test show that A. alternata was the most effective on inducing strawberry leaf spot disease followed by B. cinerea. Susceptibility of different strawberry cultivars to A. alternata and B. cinerea showed that Fortuna and Winter star were the lowest infected cultivars whereas Festival and Sunsation were the most infected cultivars and also, Florida cultivar was the moderately infected.
        All the tested fungicides for controlling leaf spot disease gave sufficient control against the causal organisms, in comparison with control in vitro. The results indicated that the fungicide Topsin M70has the superior effect followed by Captan.
           Conclusively, concerning phenolic compounds, it was found that total, free and conjugated phenols and oxidative enzymes peroxidase, polyphenol oxidase and catalase occurred at high levels in resistant cultivars in comparison with susceptible one. The accumulation of phenolic compounds occurred more rapidly in inoculated resistant leaves than in inoculated susceptible one.
 

DOI

10.21608/jpd.2023.318947

Keywords

Botrytis cinerea, Alternaria alternata, Strawberry cultivars, Phenolic compounds, topsin, Captan

Authors

First Name

Faten

Last Name

Ahmed

MiddleName

-

Affiliation

Plant Production Department, Faculty of Technology and Development, Zagazig Univ., Egypt.

Email

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City

Faculty of Technology and Development, Zagazig Univ., Egypt.

Orcid

-

First Name

Sayed

Last Name

Younis

MiddleName

-

Affiliation

Plant Production Department, Faculty of Technology and Development, Zagazig Univ., Egypt.

Email

-

City

Faculty of Technology and Development, Zagazig Univ., Egypt.

Orcid

-

First Name

Amira

Last Name

Tawfeek

MiddleName

-

Affiliation

Department of Plant Prod., Faculty of Technology and Development, Zagazig Univ., Egypt.

Email

-

City

Faculty of Technology and Development, Zagazig Univ., Egypt.

Orcid

-

First Name

Ali

Last Name

Koriem

MiddleName

-

Affiliation

Department of Plant Production, Faculty of Technology & Development, ‎Zagazig University, Egypt.‎

Email

ali.koriem@yahoo.com

City

Faculty of Technology & Development, ‎Zagazig University, Egypt.‎

Orcid

-

First Name

Mohamed

Last Name

Elian

MiddleName

-

Affiliation

Plant Production Department, Faculty of Technology and Development, Zagazig Univ., Egypt.

Email

-

City

Faculty of Technology and Development, Zagazig Univ., Egypt.

Orcid

-

Volume

28

Article Issue

2

Related Issue

41212

Issue Date

2023-04-01

Receive Date

2023-02-15

Publish Date

2023-04-01

Page Start

85

Page End

104

Print ISSN

1110-2543

Online ISSN

2682-3322

Article File

JPD_Volume 28_Issue 2_Pages 85-104.pdf

PDF . 987.8kB

Link

https://jpd.journals.ekb.eg/article_318947.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=318947

Order

2

Type

Original Article

Type Code

867

Publication Type

Journal

Publication Title

Journal of Productivity and Development

Publication Link

https://jpd.journals.ekb.eg/

MainTitle

STUDIES ON STRAWBERRY LEAF SPOT DISEASE IN EGYPT

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Article

Created At

24 Dec 2024