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164451

Heterotic Patterns for Twelve Exotic and Local Yellow Maize Populations in Egypt

Article

Last updated: 01 Jan 2025

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Subjects

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Tags

Crop genetics and breeding

Abstract

The concept of heterotic groups and patterns is fundamental to hybrid breeding theory and practice, the objective of this study was to determine heterotic patterns among twelve yellow maize populations, eight of these populations were exotic germplasm, six from China (Ch2, Ch6, Ch8, Ch12, Ch14, and Ch15), one from France (Fr.), and one from CIMMYT (DTPY); and four local populations contain mixture of Local and exotic germplasm (NYP, NDTYP, Sk21, and Gm YP). Half diallel was performed among the populations at 2018 summer season. Twelve parents and their 66 crosses were evaluated at three locations in 2019 summer season. Data were collected for grain yield, number of days to mid-sulking, plant and ear heights. Results showed that High significant differences were observed among locations, entries and their partition i.e., general and specific combining abilities (GCA and SCA) effects for all the studied traits. Also, locations by entries interaction was significant or high significant for all studied traits, while location by GCA effects interactions was highly significant and significant for plant height and ear height respectively. In addition, location by SCA effects interaction was highly significant to differ for plant height. This study showed that, Ch2, Ch12, Gm YP and Sk 21 have good Potentials for use in the National Maize Research Program (NMRP) as new heterotic patterns to develop new yellow diverse inbred Lines. The combinations (Ch14xSk21), (Ch2xGmYP), and(Ch2XDTPY) Showed desirable Specific Combining ability effects for grain yield and therefore, recommended to use in inter and intra population breeding program.

DOI

10.21608/asejaiqjsae.2021.164451

Keywords

Heterotic Patterns, half diallel, Combining ability, Exotic

Authors

First Name

Hany A.

Last Name

Darwish

MiddleName

-

Affiliation

Maize research department, Field Crops research institute, ARC, Egypt.

Email

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City

-

Orcid

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First Name

Emad. I.

Last Name

Mahmoud

MiddleName

-

Affiliation

Maize research department, Field Crops research institute, ARC, Egypt.

Email

-

City

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Orcid

-

First Name

Noura A.

Last Name

Hassan

MiddleName

-

Affiliation

Maize research department, Field Crops research institute, ARC, Egypt.

Email

-

City

-

Orcid

-

Volume

42

Article Issue

2

Related Issue

23719

Issue Date

2021-04-01

Receive Date

2021-03-19

Publish Date

2021-06-30

Page Start

239

Page End

248

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 42_Issue 2_Pages 239-248.pdf

PDF . 266.1kB

Link

https://asejaiqjsae.journals.ekb.eg/article_164451.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=164451

Order

1

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Heterotic Patterns for Twelve Exotic and Local Yellow Maize Populations in Egypt

Details

Type

Article

Created At

22 Jan 2023