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286444

Pedigree Selection in Improving Seed Yield and Tolerance of Sesame to <i>Macrophomina phaseolina </i>(Tassi) Goid

Article

Last updated: 01 Jan 2025

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Abstract

Charcoal rot caused by Macrophomina phaseolina (Tassi) Goid is the most destructive among major pathological constraints to sesame production in Egypt and worldwide. The objective of the current study was to improve high seed-yielding lines of sesame tolerant to charcoal rot through two cycles of pedigree selection for eight selection criteria under artificial infection. The base population consisted of 185 families at the F3-generation. Broad sense heritability was very high and ranged from 0.79 to 1. Tall plants gave large number of capsules/plant (NC/P), long fruiting zone (LFZ), high yielding ability and low infection% of Macrophomina. Number of capsules/plant gave sizeable genotypic (0.52) and phenotypic (0.49) correlations with seed yield/plant (SY/P). After the second cycle of selection, highly significant differences were noted for the eight selection criteria. The results revealed that the selection for days to 50% flowering improved earliness, but it was better if it restricted by SY/P. Meanwhile, selection for oil% restricted by SY/P gave the best improvement from the mid-parent in SY/P (70.16%**) followed by selection for 1000SW (62.14%**), SY/P per se (55.80%**) and selection for days to 50% flowering restricted by SY/P (39.76%**). The inclusion of a trait as an independent culling level improves the efficiency of the selection. Therefore, selection index incorporating favorable traits is recommended. The eight different methods of pedigree selection decreased the infection% at harvest ranged from -3.31%** to -15.45%** from the mid-parent.

DOI

10.21608/agro.2023.177700.1350

Keywords

genotypic correlation, narrow sense heritability, Observed gain, Restricted selection

Authors

First Name

E.E.

Last Name

Mahdy

MiddleName

-

Affiliation

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

Email

ezzatemahdy@yahoo.com

City

Assiut

Orcid

0000-0003-3902-4782

First Name

A.A.

Last Name

El- Shimy

MiddleName

-

Affiliation

Oil Crops Division, Field Crop Research Institute, Agricultural Research Center, Giza, Egypt

Email

msayed2111@googlemail.com

City

Assiut

Orcid

-

First Name

Mohammed A.

Last Name

Sayed

MiddleName

-

Affiliation

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

Email

mohamed.sayed5@agr.au.edu.eg

City

Assiut

Orcid

0000-0002-2540-7806

First Name

Amer F.

Last Name

Mahmoud

MiddleName

-

Affiliation

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

Email

amermahmoud@aun.edu.eg

City

-

Orcid

-

First Name

Aya

Last Name

Salah

MiddleName

-

Affiliation

Oil Crops Division, Field Crop Research Institute, Agricultural Research Center, Giza, Egypt

Email

aea_salah2000@yahoo.com

City

Assiut

Orcid

-

Volume

45

Article Issue

1

Related Issue

42459

Issue Date

2023-04-01

Receive Date

2022-11-29

Publish Date

2023-04-01

Page Start

31

Page End

44

Print ISSN

0379-3575

Online ISSN

2357-0288

Link

https://agro.journals.ekb.eg/article_286444.html

Detail API

https://agro.journals.ekb.eg/service?article_code=286444

Order

286,444

Type

Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

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

MainTitle

Pedigree Selection in Improving Seed Yield and Tolerance of Sesame to <i>Macrophomina phaseolina </i>(Tassi) Goid

Details

Type

Article

Created At

22 Dec 2024