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322983

ESTIMATION OF GENETIC VARIATIONS AND CONTRIBUTION OF YIELD COMPONENTS IN GRAIN YIELD OF SOME BREAD WHEAT GENOTYPES

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Biotechnology Research

Abstract

This study was conducted to determine the genetic variations, correlation and factor analysis for grain yield and its components in eight wheat genotypes. The wheat genotypes showed significant differences for all the studied traits. Genotypes Sakha 95, Misr 1, Giza 171, Misr 1, and Misr 2 performed well in both seasons for grain yield and its components. Maximum phenotypic and genotypic variances were detected for number of spikes/m2 and plant height in both seasons. The phenotypic coefficient of variation and genotypic one ranged from 48.72and 28.78% to 132.67and 74.73% and from 34.85and 21.42% to 182.98 and 117.17% for 1000 grains weight and the number of spikes/ m2 in the 1st season and the 2nd one, respectively. The highest heritability was detected for plant height and flag leaf area in both seasons. Moderate heritability was observed for number of grains/ spikes in both seasons. Low heritability was detected for the remaining traits during both seasons. A high genetic advance was observed for number of spikes/m2 (29.61) in the 2nd season. A significant positive correlation was registered between grain yield (ard./fed.) and each of flag leaf area, the number of spikes/plant and 1000 grains weight in both the 1st season and the 2nd one. The factor analysis method grouped the studied variants into two factors. These factors represented 79.424% in the 1st season and 84.255% in the 2nd one of the total variations of grain yield. The results of this study could be used to develop breeding programs for bread wheat improvement.

DOI

10.21608/zjar.2023.322983

Keywords

Wheat, Genetic variability, correlation, factor analysis

Authors

First Name

Hany

Last Name

Wafa

MiddleName

A.

Affiliation

Genet. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

hanywafa777@yahoo.com

City

-

Orcid

-

First Name

Rania

Last Name

Heakel

MiddleName

M.Y.

Affiliation

Genet. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

-

City

-

Orcid

-

Volume

50

Article Issue

4

Related Issue

44058

Issue Date

2023-07-01

Receive Date

2023-10-25

Publish Date

2023-07-01

Page Start

539

Page End

545

Print ISSN

1110-0338

Online ISSN

3009-7193

Link

https://zjar.journals.ekb.eg/article_322983.html

Detail API

https://zjar.journals.ekb.eg/service?article_code=322983

Order

322,983

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

https://zjar.journals.ekb.eg/

MainTitle

ESTIMATION OF GENETIC VARIATIONS AND CONTRIBUTION OF YIELD COMPONENTS IN GRAIN YIELD OF SOME BREAD WHEAT GENOTYPES

Details

Type

Article

Created At

24 Dec 2024