424159

Single Trait Selection in Improving Seed Yield of Sesame in Reclaimed Soil

Article

Last updated: 27 Apr 2025

Subjects

-

Tags

Agronomy

Abstract

Three cycles of pedigree selection started in the F2 were conducted during the four summer seasons of 2020 to 2023 to study the effect of single trait selection on genetic variability, heritability and improving seed yield of Sesame. The experiments were carried out at reclaimed loamy sand soil. The third cycle was evaluated in the reclaimed and clay soils. The selection criteria were plant height cm (PH), length of fruiting zone cm (LFZ), number of capsules plant-1 (NCP), seed yield plant-1 g (SYP), seed index g (SI) and oil%. The genetic materials were F2, F3, F4 and F5- generations of sesame (Sesamum indicum L.). The genotypic coefficient of variation (GCV%) decreased dramatically from the F2-generation to F5-generation. However, the remaining variability in NCP, SYP and SI was sufficient for further cycles of selection. Both of broad sense and narrow sense heritability's increased by selection towards homozygosity. Results indicated the ability of single trait in changing the mean selection criterion but adversely affects some correlated traits. Therefore, selection index combined favorable traits could be recommended. The genetic gain in SYP in percentage of the MP was 27.12% when selection practiced for SYP, followed by selection for NCP (19.65%), PH (17.31%) and SI (10.14%) in reclaimed soil. Otherwise, the order for improving SYP in clay soil was NCP (20.98%), LFZ (20.23%), PH (18.59%), SYP (17.38%) and SI (12.04%). The difference in the preference of selective traits under both sites of evaluation for SYP improvement is due to the interaction of family performance with the environment.

DOI

10.21608/ajas.2025.361047.1463

Keywords

Genetic coefficient of variability, heritability, observed genetic gain, pedigree selection

Authors

First Name

Ezzat

Last Name

Mahdy

MiddleName

E.

Affiliation

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

Email

emahdy@aun.edu.eg

City

Assiut

Orcid

-

First Name

Adel

Last Name

Mahmoud

MiddleName

M.

Affiliation

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

Email

wannan66@yahoo.com

City

assiut

Orcid

-

First Name

Ghada

Last Name

Abdel-Azeez

MiddleName

B.

Affiliation

Oil Crops Deptartment, Field Crop Research Institute, Agricultural Research Center, Egypt

Email

-

City

-

Orcid

-

First Name

Heba

Last Name

Hasan

MiddleName

A. M.

Affiliation

Oil Crops Deptartment, Field Crop Research Institute, Agricultural Research Center, Egypt

Email

-

City

-

Orcid

-

Volume

56

Article Issue

2

Related Issue

55257

Issue Date

2025-04-01

Receive Date

2025-01-01

Publish Date

2025-04-03

Page Start

51

Page End

64

Print ISSN

1110-0486

Online ISSN

2356-9840

Link

https://ajas.journals.ekb.eg/article_424159.html

Detail API

http://journals.ekb.eg?_action=service&article_code=424159

Order

424,159

Type

Original Article

Type Code

62

Publication Type

Journal

Publication Title

Assiut Journal of Agricultural Sciences

Publication Link

https://ajas.journals.ekb.eg/

MainTitle

Single Trait Selection in Improving Seed Yield of Sesame in Reclaimed Soil

Details

Type

Article

Created At

27 Apr 2025