Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia
Abstract The experiment was conducted at Gitilo Dale, Western Ethiopia, with the objectives to determine the extent of genetic variability, the association of traits, heritability, and their direct and indirect associations with grain yield and yield components under rainfall conditions. Twenty‐five...
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Wiley
2025-06-01
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| Series: | Agrosystems, Geosciences & Environment |
| Online Access: | https://doi.org/10.1002/agg2.70115 |
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| author | Morketa Gudeta Bulti Tesso Negash Geleta |
| author_facet | Morketa Gudeta Bulti Tesso Negash Geleta |
| author_sort | Morketa Gudeta |
| collection | DOAJ |
| description | Abstract The experiment was conducted at Gitilo Dale, Western Ethiopia, with the objectives to determine the extent of genetic variability, the association of traits, heritability, and their direct and indirect associations with grain yield and yield components under rainfall conditions. Twenty‐five bread wheat (Triticum aestivum L.) varieties were arranged in a randomized complete block design, and data were collected for 14 agro‐morphological traits. The results from the analysis of variance showed that varieties were highly significantly different for 14 traits. The mean ranges were higher for biological yield, grain yield, days to maturity, plant height, days to heading, hectoliter weight, and 1000‐kernel weight in decreasing order of importance. High estimates for genotypic and phenotypic coefficients of variation (>20%) were observed for grain yield, biological yield, and harvest index. Higher (>60%) estimates of heritability values coupled with genetic advance as a percentage of the mean were observed for grain yield, biological yield, and harvest index. At the genotypic level, biological yield, harvest index, productive tillers per plant, kernels per spike, and spikelets per spike exerted positive direct effects and significant and positive associations with grain yield. Similarly, at the phenotypic level, biological yield, harvest index, total tillers per plant, productive tillers per plant, kernels per spike, spikelets per spike, and spike length exerted positive direct effects and significant positive associations with grain yield, indicating they are the most important traits for indirect selection of varieties for higher grain yield improvement. The four top‐performing bread wheat varieties identified in the study were Liban, Shorima, Abola, and Taye. Future research should be done over locations and years by including more bread wheat genotypes to investigate the extent of genetic variability and traits associations with grain yield and other yield components to enhance the yield of bread wheat. |
| format | Article |
| id | doaj-art-62158c04b8f44bd3972689fd6c611bd2 |
| institution | OA Journals |
| issn | 2639-6696 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
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| series | Agrosystems, Geosciences & Environment |
| spelling | doaj-art-62158c04b8f44bd3972689fd6c611bd22025-08-20T02:20:38ZengWileyAgrosystems, Geosciences & Environment2639-66962025-06-0182n/an/a10.1002/agg2.70115Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western EthiopiaMorketa Gudeta0Bulti Tesso1Negash Geleta2Plant Science DepartmentWallaga University, Shambu CampusShambuEthiopiaSchool of Plant ScienceHaramaya UniversityDire DawaEthiopiaEthioipian Institute of Agricultural ResearchKulumsa Agricultural Research CenterKulumsaEthiopiaAbstract The experiment was conducted at Gitilo Dale, Western Ethiopia, with the objectives to determine the extent of genetic variability, the association of traits, heritability, and their direct and indirect associations with grain yield and yield components under rainfall conditions. Twenty‐five bread wheat (Triticum aestivum L.) varieties were arranged in a randomized complete block design, and data were collected for 14 agro‐morphological traits. The results from the analysis of variance showed that varieties were highly significantly different for 14 traits. The mean ranges were higher for biological yield, grain yield, days to maturity, plant height, days to heading, hectoliter weight, and 1000‐kernel weight in decreasing order of importance. High estimates for genotypic and phenotypic coefficients of variation (>20%) were observed for grain yield, biological yield, and harvest index. Higher (>60%) estimates of heritability values coupled with genetic advance as a percentage of the mean were observed for grain yield, biological yield, and harvest index. At the genotypic level, biological yield, harvest index, productive tillers per plant, kernels per spike, and spikelets per spike exerted positive direct effects and significant and positive associations with grain yield. Similarly, at the phenotypic level, biological yield, harvest index, total tillers per plant, productive tillers per plant, kernels per spike, spikelets per spike, and spike length exerted positive direct effects and significant positive associations with grain yield, indicating they are the most important traits for indirect selection of varieties for higher grain yield improvement. The four top‐performing bread wheat varieties identified in the study were Liban, Shorima, Abola, and Taye. Future research should be done over locations and years by including more bread wheat genotypes to investigate the extent of genetic variability and traits associations with grain yield and other yield components to enhance the yield of bread wheat.https://doi.org/10.1002/agg2.70115 |
| spellingShingle | Morketa Gudeta Bulti Tesso Negash Geleta Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia Agrosystems, Geosciences & Environment |
| title | Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia |
| title_full | Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia |
| title_fullStr | Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia |
| title_full_unstemmed | Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia |
| title_short | Genetic variation, genotypic and phenotypic correlation, heritability, and path coefficient analysis of yield and yield‐related traits in bread wheat (Triticum aestivum L.) varieties at Gitilo Dale, Western Ethiopia |
| title_sort | genetic variation genotypic and phenotypic correlation heritability and path coefficient analysis of yield and yield related traits in bread wheat triticum aestivum l varieties at gitilo dale western ethiopia |
| url | https://doi.org/10.1002/agg2.70115 |
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