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47893

Half-diallel Analysis of Fusarium Head Blight Resistance in Bread Wheat (<i> Triticum aestivum </i> L.)

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Crop breeding

Abstract

TO CHARACTERIZE FHB resistance, a set of 48 advanced inbred lines (AILs) along with two Egyptian cultivars (Sakha-93 and Giza-168) were evaluated for their resistance to the FHB during 2015/2016 and 2016/2017 under both greenhouse and field conditions. We identified some resistant AILs to the FHB including 37, 35 and 22 based on percentages of diseased spikelets under both greenhouse and field conditions and free phenolic compounds along with grain yield (GY) under the field condition. While most of the AILs were susceptible to the FHB. Three resistant AILs, three susceptible AILs and an Egyptian susceptible cultivar were crossed in a half–diallel mating system. The parents and the non–reciprocal F1 crosses were evaluated for their response to the FHB under infected conditions in both greenhouse and field conditions. Both general combining ability (GCA) and specific combining ability (SCA) were significant for all studied traits. Both additive and non–additive describes for resistance to the FHB; however, different calculations supported that additive gene action is the preponderant constituent. The moderately high estimates of narrow–sense heritability values implied that further improvement of the FHB resistance could be accomplished through selection. We found that AILs 22, 35 and 37 were good combiners and successfully conveyed their resistant genes to their offspring based on the SCA. These resistant AILs could be integrated in wheat breeding programs using bi-parental or multi-parental populations to develop new resistant varieties to FHB. In addition, they can be exploited to improve existing cultivars using backcrossing approach.

DOI

10.21608/agro.2019.15916.1175

Keywords

General combining ability, Specific combining ability, Narrow-sense heritability, Free phenolic compounds, Grain yield

Authors

First Name

Mohamed

Last Name

Ali

MiddleName

B.

Affiliation

Agronomy Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt

Email

mali@aun.edu.eg

City

-

Orcid

-

First Name

Amer

Last Name

Mahmoud

MiddleName

F.

Affiliation

Plant Pathology Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt

Email

amermahmoud@aun.edu.eg

City

-

Orcid

-

Volume

41

Article Issue

3

Related Issue

10103

Issue Date

2019-12-01

Receive Date

2019-08-15

Publish Date

2019-12-01

Page Start

207

Page End

223

Print ISSN

0379-3575

Online ISSN

2357-0288

Link

https://agro.journals.ekb.eg/article_47893.html

Detail API

https://agro.journals.ekb.eg/service?article_code=47893

Order

2

Type

Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

https://agro.journals.ekb.eg/

MainTitle

Half-diallel Analysis of Fusarium Head Blight Resistance in Bread Wheat (<i> Triticum aestivum </i> L.)

Details

Type

Article

Created At

22 Jan 2023