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225279

Performance of induced resistance chemicals (IRCs) on olive transplants root rot disease under greenhouse conditions

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Last updated: 05 Jan 2025

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Abstract

Root rot of olive transplants is a severe disease caused by several soil borne fungi recording high loss in growth and transplants production in nurseries. Benzoic acid, Sorbic acid, Salicylic acid, Propionic acid, Potassium sorbate, Potassium silicate, and Hydroqunion as Induced Resistant Chemicals (IRCs) were tested against linear growth of pathogenic fungal isolates causing root rot of olive transplants i.e., Macrophomina phaseolina, Botryodiplodia theobromae, Fusarium solani and Rhizoctonia solani. The tested concentrations of Induced Resistance Chemicals (IRCs) significantly reduced the mycelium growth of tested fungi. Benzoic acid, Sorbic acid, Propionic acid and Salicylic acid with 25mM concentration recorded and 100% growth reduction of tested fungi. All tested concentrations of Propionic acid completely inhibited the linear growth of all tested fungi. Also complete inhibition of linear growth was obtained with Benzoic acid, Sorbic acid, Salicylic acid at concentrations of 10, 15 and 25 mM with all tested fungi except that B. theobromae while other treatments showed moderate effects. The efficiency of four Induced Resistance Chemicals (IRCs) on disease incidence and severity was carried, under greenhouse conditions during 2019 and 2020 seasons at faculty of agriculture farm, Fayoum. Results reveal that, for 2019 growing season, the most effective treatments are Sorbic acid, Propionic acid and Salicylic acid which suppressed the disease incidence by 80.45, 91.30 & 82.61 % and disease severity by 85.13, 86.57 & 83.98 % respectively. Meanwhile, Benzoic acid showed moderate effect. The same trend was observed during 2020 growing season. All tested chemicals significantly increase plant growth parameters i.e., plant height (cm), fresh and dry weights (gm) in transplants grown in infested soil with tested pathogenic fungi comparing with untreated transplants. Results of the present study could suggest that soil drench with Induced Resistance Chemicals (IRCs) can be used as a safe control measure of the disease on olive transplants and as a stimulant of vegetative growth parameters.


DOI

10.21608/fjard.2021.225279

Keywords

KEYWORDS: Olive transplants, Root rot disease, soil borne fungi, induce resistance chemicals (IRCs), vegetative growth parameters

Authors

First Name

Ola

Last Name

Eid

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Affiliation

Botany, Plant pathology, Faculty of Agriculture, Fayoum University, Fayoum, Egypt, 63514.

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First Name

Sameh

Last Name

EL nagger

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-

Affiliation

Botany, Plant pathology, Faculty of Agriculture, Fayoum University, Fayoum, Egypt, 63514.

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First Name

Abdel Radi

Last Name

Bakeer

MiddleName

-

Affiliation

Botany, Plant pathology, Faculty of Agriculture, Fayoum University, Fayoum, Egypt, 63514.

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Orcid

-

First Name

Mohamed

Last Name

Barakat

MiddleName

-

Affiliation

Botany, Plant pathology, Faculty of Agriculture, Fayoum University, Fayoum, Egypt, 63514.

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Volume

35

Article Issue

3

Related Issue

29553

Issue Date

2021-09-01

Receive Date

2022-03-16

Publish Date

2021-09-01

Page Start

575

Page End

588

Print ISSN

1110-7790

Online ISSN

2805-2528

Article File

FJARD_Volume 35_Issue 3_Pages 575-588.pdf

PDF . 980.3kB

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https://fjard.journals.ekb.eg/article_225279.html

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https://fjard.journals.ekb.eg/service?article_code=225279

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11

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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

Performance of induced resistance chemicals (IRCs) on olive transplants root rot disease under greenhouse conditions

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Article

Created At

23 Jan 2023