Genetic Variability in Bread Wheat (Triticum aestivum L.) Genotypes under Irrigated Condition

Niguse Chewaka1*, Ermias Estifanos 2and Negash Galeta 3

1Ethiopian Institute of Agricultural Research, Werer Agricultural Research Center, Addis Ababa, Ethiopia.

2Department of Plant Science, Ambo University School of Agriculture, Ambo, Ethiopia.

3Ethiopian Institute of Agricultural Research, Kulumsa Agricultural Research Center, Kulumsa, Ethiopia.

Corresponding Author E-mail:n.chewaka@gmail.com

DOI : http://dx.doi.org/10.12944/CARJ.12.2.12

Article Publishing History

Received: 21 Mar 2024
Accepted: 15 Jun 2024
Published Online: 17 Jul 2024

Review Details

Reviewed by: Dr. Meenakshi Kumari
Second Review by: Dr. Divya Phougat
Final Approval by: Dr. Mohammad Reza Naroui Rad

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Abstract:

Bread wheat (Triticum aestivum L.) is a major grain crop and staple in many regions of the world. The objective of this research is to discover high-yielding genotypes while also analyzing gene variation, heritability, and progress of yield-determining variables related to bread wheat genotypes. As a result, this study assesses the production potential, genetic diversity, and heritability of bread wheat genotypes produced under irrigated settings in Ginchi, Ethiopia.  Sixty-four bread wheat advanced pure lines and standard checks were evaluated using a simple lattice (8X8) design. The results show considerable phenotypic and genotypic variations among the tested genotypes for all considered traits. Traits such as grain yield per hectare, biomass yield, number of kernels per spike, and thousand kernels weight showed moderate phenotypic coefficients of variation. Broad sense heritability ranged from 30% for biomass yield to 91% for days to 50% heading. Expected genetic advance as percent of means values ranged from 3.73% for days to 50% emergence to 16.91% for thousand kernel weight. The identified high-yielding genotypes, G31, G11, G51, G6, G3, G34, G23, G5, G41, and G59, have shown promising potential for advancing the breeding objectives in the field of irrigated wheat. The study concludes that the use of these traits for direct selection would bring advancement. The future scope of this research lies in the confirmation of the identified high-yielding genotypes in multi-location and season trials to further advance the breeding objectives in the field of breeding programs.

Keywords:

Bread wheat; Genetic variability; Heritability; Irrigated; Yield-related traits

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Chewaka N, Estifanos E, Galeta N. Genetic Variability in Bread Wheat (Triticum aestivum L.) Genotypes under Irrigated Condition. Curr Agri Res 2024; 12(2). doi : http://dx.doi.org/10.12944/CARJ.12.2.12

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Chewaka N, Estifanos E, Galeta N. Genetic Variability in Bread Wheat (Triticum aestivum L.) Genotypes under Irrigated Condition. Curr Agri Res 2024; 12(2). Available from: https://bit.ly/4dbIxOc

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