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234598

COMBINING ABILITY FOR YIELD AND FIBER QUALITY TRAITS IN INTRASPECIFIC COTTON CROSSES

Article

Last updated: 05 Jan 2025

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Abstract

This work was achieved during three seasons (2018-2020) at Sakha Experimental Station, Kafr El-Sheikh Governorate. Four Egyptian cotton varieties (Giza 92, Giza 93, Giza 96 and Giza 87) used as lines and three genotypes (Early Pima, Pima S1 and Pima S6) as testers in line x tester mating design. Combining ability, genetic components and heritability were estimated in F1 and F2 generations for yield, its components and fiber properties. Genotypes varied significantly for all traits, Giza 92, Giza 96 and Pima S1 gave the highest yield, Giza 87 had the best fiber properties. Giza 96 x Pima S1 cross gave the highest yield, Giza 87 x Pima S6 had the best fiber traits. Significance of GCA and SCA indicated that additive and non-additive gene actions are controlling the studied traits. Giza 92 was the best combiner for yield and fiber strength, followed by Giza 96, while Giza 87 and Pima S1 were the best combiners for fiber traits. Giza 92 x Pima S1 showed the highest significant desirable SCA effects. The SCA variance was higher than GCA for most traits indicating that non-additive gene action was controlling these traits, whereas additive type was prevalence for lint% and fiber length. Broad sense heritability was low for boll weight, intermediate for fiber length and large for the rest of traits. Narrow sense heritability was low to intermediate for all traits. Giza 92 and Giza 96 and the cross Giza 92 x Pima S1 were promising for improving the yield in breeding programs.

DOI

10.12816/ejpb.2022.92781.1000

Keywords

Egyptian cotton, Linextester, Combining ability, gene action, heritability

Authors

First Name

Emad

Last Name

Amer

MiddleName

Abdel Azim

Affiliation

Cotton breeding Department, Cotton Research Institute, Agric. Res. Center, Giza, Egypt

Email

dr.emadazem@yahoo.com

City

Cairo

Orcid

-

Volume

26

Article Issue

1

Related Issue

35004

Issue Date

2022-06-01

Receive Date

2021-08-28

Publish Date

2022-06-01

Print ISSN

1110-7863

Online ISSN

2735-3885

Link

https://ejpb.journals.ekb.eg/article_234598.html

Detail API

https://ejpb.journals.ekb.eg/service?article_code=234598

Order

5

Type

Original research

Type Code

1,909

Publication Type

Journal

Publication Title

Egyptian Journal of Plant Breeding

Publication Link

https://ejpb.journals.ekb.eg/

MainTitle

COMBINING ABILITY FOR YIELD AND FIBER QUALITY TRAITS IN INTRASPECIFIC COTTON CROSSES

Details

Type

Article

Created At

23 Jan 2023