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176293

COMBINING ABILITY OF NINE WHITE MAIZE INBRED LINES FOR YIELD AND SOME AGRONOMIC TRAITS

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Last updated: 04 Jan 2025

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Abstract

Combining ability analysis was conducted for grain yield, yield components and some agronomic traits, i.e. days to 50% silking, plant and ear heights in a half- diallel cross system involving nine white maize inbred lines. The results indicated that variance due to both general (GCA) and (SCA) specific combining ability was highly significant for all studied traits, indicating the importance of both additive and non-additive gene effects in the inheritance of studied traits. The magnitude of the ratio of general to specific combining ability variance (δ2 GCA, δ2 SCA) indicated that the additive was more important than non-additive gene action in the inheritance of studied traits. Estimation of GCA effects of parents revealed that, parent P2, P3  and P9  were the best combiner for grain yield and some of its  components, while the best general combiner for earliness were P1, P7 and P8. The best crosses P1 X P9 and P3XP9 had the positive SCA effects and the highest performance for grain yield. Such suppression inbred lines and crosses can be utilized in the national hybrid breeding program to produce high yielding hybrids.

DOI

10.21608/mjppf.2017.176293

Keywords

white maize, GCA, SCA, Additive, Non-additive variance

Authors

First Name

A.K.

Last Name

Mostafa

MiddleName

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Affiliation

Maize Res. Dep., Field Crops Res. Institute, ARC

Email

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City

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Orcid

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First Name

M.A.A.

Last Name

Mostafa

MiddleName

-

Affiliation

Maize Res. Dep., Field Crops Res. Institute, ARC

Email

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City

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Orcid

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Volume

2

Article Issue

5

Related Issue

25548

Issue Date

2017-10-01

Receive Date

2021-06-08

Publish Date

2017-10-01

Page Start

407

Page End

417

Print ISSN

2357-0830

Online ISSN

2735-346X

Article File

MJPPF_Volume 2_Issue 5_Pages 407-417.pdf

PDF . 448.7kB

Link

https://mjppf.journals.ekb.eg/article_176293.html

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https://mjppf.journals.ekb.eg/service?article_code=176293

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original papers

Type Code

1,393

Publication Type

Journal

Publication Title

Menoufia Journal of Plant Production

Publication Link

https://mjppf.journals.ekb.eg/

MainTitle

COMBINING ABILITY OF NINE WHITE MAIZE INBRED LINES FOR YIELD AND SOME AGRONOMIC TRAITS

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Article

Created At

23 Jan 2023