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194697

MANAGEMENT OF TOMATO EARLY BLIGHT, CAUSED BY Alternaria solani WITH RESISTANCE INDUCER CHEMICALS (RIC) AND FUNGICIDES

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Last updated: 28 Dec 2024

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Abstract

The resistance inducer chemicals (RIC), i.e. Bion, Cobalt
chloride, Ecophote, Photophor and Salicylic acid and the two
fungicides; i.e. Concento and Score used in this investigation caused
different degrees of inhibition to the radial growth of Alternaria
solani, the causal fungus of tomato early blight. In general, both of
the two aforementioned fungicides were more effective than RIC in
reducing the radial growth of A. cucumerinum. Also, the reduction
in the radial growth increased by increasing the concentration of
both the tested RIC and fungicides. Field experiments curried out
during 2011 and 2012 growing seasons revealed that both of the
tested RIC and fungicides resulted in significant reduction in the
natural infection of tomato early blight consequently fruit yield was
increased compared with control treatment. On the otherhand,
spraying RIC after application of the aforementioned two fungicides
was more effective in reducing the disease severity compared with
spraying the fungicides or RIC each alone. All applications of RIC
and fungicides, each alone resulted in considerable increase to
oxidative-reductive enzymes; i.e. polyphenol oxidase, peroxidase
and ascorbic acid oxidase compared with control treatment.
However, RIC increased enzymatic activity compared with the two
tested fungicides.

DOI

10.21608/fjard.2012.194697

Keywords

Resistance Inducer Chemicals, Alternaria solani, Tomato early blight, Diseases severity, enzymatic activity

Authors

First Name

Osama

Last Name

Yosof Mohamed Shalaby

MiddleName

-

Affiliation

Agric. Botany Dept., Fac. Agric., Fayoum University

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Orcid

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Volume

26

Article Issue

2

Related Issue

27668

Issue Date

2012-07-01

Receive Date

2021-09-14

Publish Date

2012-07-01

Page Start

76

Page End

83

Print ISSN

1110-7790

Online ISSN

2805-2528

Article File

FJARD_Volume 26_Issue 2_Pages 76-83.pdf

PDF . 468.7kB

Link

https://fjard.journals.ekb.eg/article_194697.html

Detail API

https://fjard.journals.ekb.eg/service?article_code=194697

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6

Type

Research articles.

Type Code

1,920

Publication Type

Journal

Publication Title

Fayoum Journal of Agricultural Research and Development

Publication Link

https://fjard.journals.ekb.eg/

MainTitle

MANAGEMENT OF TOMATO EARLY BLIGHT, CAUSED BY Alternaria solani WITH RESISTANCE INDUCER CHEMICALS (RIC) AND FUNGICIDES

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Article

Created At

23 Jan 2023