Beta
267315

Improving earliness index and lint yield by pedigree selection in two populations of Egyptian cotton under late planting

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Agronomy

Abstract

Two cycles of pedigree selection for earliness index and lint yield/plant were achieved in two populations of Egyptian cotton (G. barbadense L.) under late planting condition. The genetic materials were the F6, F7 and F8-generations of (Giza 80 x Pima 56)/Giza 91 (pop. I) and Dandara/Giza 80 (pop. II). The genotypic coefficients of variation (gcv) in the F6-genreation were 13.35 and 14.69% for earliness index, and 23.70 and 27.60% for lint yield/plant for pop. I and pop. II; respectively. The remained gcv after two cycles of pedigree selection were 8.12 and 10.60% for earliness index, and 22.59 and 21.50% for lint yield/plant for pop. I and pop. II; respectively. The respective realized heritability was 0.4550 and 0.2731 for earliness index, and 0.4128 and 0.3970 for lint yield/plant. The average direct observed gain was significant and accounted for 5.59 and 3.80% for earliness index, and 6.68 and 5.45% (ns) for lint yield/plant from the bulk sample for pop. I and II; respectively. Two promising superior families were isolated from each population in both of earliness index and yield. For example, concerning earliness index, the best superior family No. 175 showed significant (P<0.01) observed gains from the better parent of 26.81, 49.99, 18.17, 9.87, 43.19 and 13.78% for seed cotton yield/plant, lint yield/plant, lint percentage, seed index, lint index and earliness index; respectively.

DOI

10.21608/ajas.2012.267315

Authors

First Name

E.

Last Name

emahdy

MiddleName

E.

Affiliation

Assiut Univ. Fac. Agric

Email

emahdy@aun.edu.eg

City

Assiut

Orcid

-

First Name

Atif

Last Name

Abo El-Wafa

MiddleName

-

Affiliation

Faculty of Agriculture, Assiut University

Email

atef.hefny@agr.au.edu.eg

City

Assiut

Orcid

-

First Name

G.M.Kh.

Last Name

Hemaida

MiddleName

-

Affiliation

A.R.C.Cotton Res.Inst., Egypt

Email

-

City

-

Orcid

-

First Name

A. M.

Last Name

Soliman

MiddleName

-

Affiliation

A.R.C.Cotton Res.Inst., Egypt

Email

-

City

-

Orcid

-

Volume

43

Article Issue

6

Related Issue

211

Issue Date

2012-12-01

Receive Date

2012-12-01

Publish Date

2012-12-01

Page Start

1

Page End

17

Print ISSN

1110-0486

Online ISSN

2356-9840

Link

https://ajas.journals.ekb.eg/article_267315.html

Detail API

https://ajas.journals.ekb.eg/service?article_code=267315

Order

1

Type

Original Article

Type Code

62

Publication Type

Journal

Publication Title

Assiut Journal of Agricultural Sciences

Publication Link

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

MainTitle

Improving earliness index and lint yield by pedigree selection in two populations of Egyptian cotton under late planting

Details

Type

Article

Created At

22 Jan 2023