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95629

Impact of Late Wilt Caused by Cephalosporium maydis on Maize Grain Yield and Protein Content

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Last updated: 04 Jan 2025

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Abstract

Twenty-one Egyptian maize genotypes were evaluated for their resistance against late wilt disease under field artificial infection in Gemmeiza Agricultural Research Station, ARC, during 2011 and 2012 growing seasons. Relationship between the disease incidence and losses in grain yield and protein content were determined. Maize genotypes differed greatly in their reaction to disease incidence (8.22 up to 33.94%). The resistance exhibited by S.C 10 hybrid and inbred line Sd.7 (< 10% infection). Meanwhile, Gz.658, S.C166 and T.W.C 352 were susceptible (> 30% infection). The other genotypes showed infection type ranged from moderately resistance (Gm.2, Gm.4, Sd.63, Gz 639, S.C 24, S.C 167, T.W.C 321 and T.W.C 324) and moderately susceptible (Gm.18, Gm.1021, Gz.656, S.C 52, S.C 124, S.C 168, T.W.C 322 and T.W.C 323). The disease infection reduced grain yield from 5.67 to 30.37% and protein content from 11.99 to 37.87% in all genotypes tested. The highest reduction in yield and protein were recorded in the susceptible genotypes. A highly significant positive correlation was found between late wilt incidence and losses of grain yield (r = 0.932 **) and protein (r = 0.955**). Resistant and moderately resistance of Egyptian lines could be used as a parent for production  of new resistant hybrids to late wilt.

DOI

10.21608/ejp.2014.95629

Keywords

Cephalosporium maydis, genotypes, Maize, protein loss, resistance and yield loss

Authors

First Name

Amal

Last Name

El-Shehawy

MiddleName

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Affiliation

Maize and Sugar Crops Dis. Res. Sec., Plant Pathol. Res. Inst., A.R.C., Giza, Egypt.

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Orcid

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First Name

Abed

Last Name

Ata

MiddleName

-

Affiliation

Maize and Sugar Crops Dis. Res. Sec., Plant Pathol. Res. Inst., A.R.C., Giza, Egypt

Email

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Orcid

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First Name

Mohamed

Last Name

El-Ghonemy

MiddleName

-

Affiliation

Maize Res. Section, Field Crops Res. Inst., A.R.C., Giza, Egypt

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Orcid

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Volume

42

Article Issue

1

Related Issue

14424

Issue Date

2014-06-01

Receive Date

2014-01-12

Publish Date

2014-06-30

Page Start

1

Page End

10

Print ISSN

1110-0230

Online ISSN

2090-2522

Link

https://ejp.journals.ekb.eg/article_95629.html

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https://ejp.journals.ekb.eg/service?article_code=95629

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1

Type

Original Article

Type Code

1,256

Publication Type

Journal

Publication Title

Egyptian Journal of Phytopathology

Publication Link

https://ejp.journals.ekb.eg/

MainTitle

Impact of Late Wilt Caused by Cephalosporium maydis on Maize Grain Yield and Protein Content

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Article

Created At

22 Jan 2023