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15465

ESTIMATES OF GENETIC COMPONENTS, PREDICTION AND GENETIC CORRELATION IN WHEAT (TRITICUM AESTIVUM,L.) USING NORTH CAROLINA DESIGN III

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Last updated: 03 Jan 2025

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Abstract

North Carolina Design III was used to estimate gene effects in bread wheat crosses. Twelve Egyptian bread wheat genotypes i.e. Sakha 69, Sakha 8, Gemmeiza 1, Gemmeiza 3, Gemmeiza 7, Giza 160, , Giza 162, Giza 164, Giza 165, Sids 1, Sids 3 and Sids  4, each was crossed back to testers, high performing (Gemmeiza 9) and low performing parent (Sakha 92) during three winter successive seasons i.e. 2002/2003, 2003/2004 and 2004/2005, to study; heading date (days) plant height (cm), flag leaf length (cm) flag leaf width (cm), flag leaf area (cm)2, extrusion length (cm), number of spikelets/spike, spike grain weight (g.), number of spikes/plant, number of grains/spike, 1000-grain weight (g.) and grain yield/plant (g.) characters. Results indicated that epistasis played great role in the inheritance of all studied characters except number of spikes/plant. Additive(D)and dominance(H) genetic variances were significant in all studied characters except number of spikes/plant and number of grains/spike. The additive genetic variance was more than dominance for heading date, plant height, flag leaf length, flag leaf width, extrusion length, spike length and 1000- grain weight. The ratio of (H./D) 0.5 was less than one for these characters but for the remaining characters the dominance genetic variance was more than additive. The values of(F) indicated that dominance was unidirectional for flag leaf length and flag leaf area, whereas it was ambidirectional for the remaining characters Prediction results revealed that it could be possible to derive reasonable proportion of new recombinants which are falling out side parental range for heading date, flag leaf length, flag leaf width, spike length, number of spikelets/spike, number of spikes/plant, 1000- grain weight and grain yield/plant. Genetic correlation indicated that additive, dominance and epistasis gene effects controlling grain yield/plant and spike grain weight, number of spikes/plant, number of grains/spike, 1000- grain weight, were signifant, suggesting common genetic pool or pleiotropy. Thus, selection based on additive genetic correlation indicated that indirect selection via, spike grain weight, number of spikes/plant, number of grains/spike and 1000- grain weight would be effective and enhance its importance as selection criteria .

DOI

10.21608/ajs.2006.15465

Keywords

Gene-effects, High performing and low performing, Heading date, Plant height (cm), Flag leaf length and width (cm), Flag leaf area (cm)2, Extrusion length (cm), Number of spikelets/spike, Spike grain weight (g), Number of spikes/plant, Number of grains/spike, 1000-grain weight (g) and grain yield/plant (g) characters

Authors

First Name

Salama

Last Name

S.M

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Affiliation

Central Laboratory for Design and Statistical Analysis Research, Agricultural Re-search Center, Giza, Egypt

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Orcid

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First Name

S.A

Last Name

. Awaad

MiddleName

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Affiliation

Central Laboratory for Design and Statistical Analysis Research, Agricultural Re-search Center, Giza, Egypt

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Orcid

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First Name

Manal

Last Name

M. Salem

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-

Affiliation

Central Laboratory for Design and Statistical Analysis Research, Agricultural Re-search Center, Giza, Egypt

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Volume

14

Article Issue

1

Related Issue

3228

Issue Date

2006-03-01

Receive Date

2005-09-18

Publish Date

2006-03-01

Page Start

265

Page End

280

Print ISSN

1110-2675

Online ISSN

2636-3585

Link

https://ajs.journals.ekb.eg/article_15465.html

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https://ajs.journals.ekb.eg/service?article_code=15465

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17

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Original Article

Type Code

668

Publication Type

Journal

Publication Title

Arab Universities Journal of Agricultural Sciences

Publication Link

https://ajs.journals.ekb.eg/

MainTitle

ESTIMATES OF GENETIC COMPONENTS, PREDICTION AND GENETIC CORRELATION IN WHEAT (TRITICUM AESTIVUM,L.) USING NORTH CAROLINA DESIGN III

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Article

Created At

22 Jan 2023