Beta
51861

GENETIC VARIATION AND INTERRELATIONSHIPS AMONG AGRONOMIC TRAITS IN EGYPTIAN BREAD WHEAT LANDRACES AND LOCAL CULTIVARS

Article

Last updated: 30 Jan 2023

Subjects

-

Tags

-

Abstract

The aim of this work was to investigate the genotypic variation of thirty five bread wheat genotypes as well as to clarify the association between grain yield and the other important agronomic traits. Two field experiments were carried out in the Experimental Farm of Genetic Resources Department, Bahteem Agricultural Research Station, Egypt during 2015-2016 and 2016-2017 growing seasons. Thirty two wheat landraces collected from eleven Districts in Egypt, in addition to three local cultivars were evaluated for earliness traits, plant height, yield and its components. The results indicated significant differences among the evaluated wheat genotypes for all investigated traits during the two seasons. The highest grain weight/plant and contributing traits were assigned for genotypes; G3, G8, G18, G27, G29, G33 and G35 at two growing seasons. The phenotypic variance (σ2ph) was found slightly higher than the genotypic variance (σ2g) for all studied traits under two seasons, and accordingly, phenotypic coefficient of variation (PCV) values were relatively greater than genotypic coefficient of variation (GCV) values for all traits. Heritability in broad sense (h2b) values were high for plant height (90.63 and 97.81 %), number of grains/spike (95.33 and 84.66 %), 1000-grain weight (76.42 and 84.03 %), days to heading (77.4 and 87.06 %) and days to maturity (86.18 and 66.56 %) in 1st and 2nd seasons, respectively. Besides, it was low in 1st season (43.38 %) and high in 2nd season (71.91 %) for grain weight/plant, whereas it was moderate for number of spikes/plant (52.87 and 58.09 %) in 1st and 2nd seasons, respectively. Furthermore, positive genotypic and phenotypic correlations were found between studied traits and grain weight/plant during two growing seasons except days to heading. Additionally, path analysis was calculated and it was found that the direct effects on wheat grain yield of all studied traits were positive in both seasons except days to 50% heading at two seasons and days to maturity and plant height at the second season.

DOI

10.21608/zjar.2019.51861

Keywords

Bread wheat, local landraces and cultivars, phenotypic and genotypic coefficients of variation, genotypic and phenotypic correlation coefficients, broad sense heritability

Authors

First Name

Mohammed

Last Name

Gharib

MiddleName

A.H.

Affiliation

Field Crops Res. Inst., Agric. Res. Cent., Giza, Egypt

Email

-

City

-

Orcid

-

First Name

A.

Last Name

Salem

MiddleName

H.

Affiliation

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

Email

-

City

-

Orcid

-

First Name

M.

Last Name

Ali

MiddleName

M.A.

Affiliation

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

Email

abd_lhamed@yahoo.com

City

-

Orcid

0000-0003-4565-7180

First Name

E.

Last Name

Mansour

MiddleName

-

Affiliation

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

Email

sayed_mansour_84@yahoo.es

City

-

Orcid

-

First Name

Naglaa

Last Name

Qabil

MiddleName

-

Affiliation

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

Email

naglaaqabil82@yahoo.com

City

-

Orcid

-

Volume

46

Article Issue

6

Related Issue

7980

Issue Date

2019-11-01

Receive Date

2019-07-30

Publish Date

2019-11-01

Page Start

1,755

Page End

1,767

Print ISSN

1110-0338

Link

https://zjar.journals.ekb.eg/article_51861.html

Detail API

https://zjar.journals.ekb.eg/service?article_code=51861

Order

1

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023