Today, wheat is among the most important crops grown in Ethiopia, both as a source of food for consumers and as a source of income for farmers. Since Ethiopia is known for its diverse agro-ecology the performance of genotypes differs within and across environments and cultivars or genotypes respond differently to diverse environments. Therefore, studies on Genotype by Environment (GxE) interaction may help to determine whether or not a genotype is stable in performance over a range of environments. Therefore, this study was conducted to identify the best performing stable bread wheat genotype for selected areas and analysis of the environment by GGE biplot. In this experiment, 20 bread wheat genotypes were evaluated using RCBD with three replications at five different locations in southern Oromia. The combined analysis of variance revealed that, there were highly significant differences among environments and among genotypes (p<0.001) for grain yield and yield components and for growth parameters except for days to emergence which was non-significant, indicating the presence of variability in genotypes as well as diversity of growing conditions at different locations. The GxE interaction was highly significant (p<0.001) for all traits except spike length reflecting the differential response of genotypes in various environments. Environments explained 59.1%, genotypes 19.1% and GxE 14.8% of the variability in grin yield. Bore (E1) was the most discriminating environment while Adola (E3) and Liben (E4) were the least discriminating environments. GGE-II explained 89.62% of G+GEI and the angle between pair of all locations was lower than 90°; performance of genotypes at all environments was almost similar, but Bore (E1) was separated from the remaining four environments. The bi-plot had six vertex genotypes, viz. Wane (G2), PBW-343 (G20), Galama (G13), Kakaba (G10), Hawi (G3) and ETBW8420 (G18). Hidase (G7) and Tuse (G8) gave relatively high grain yield and found to be stable, so can be recommended for wide adaptation. Wane (G2) and PBW-343 (G20) were unstable but were predicted to give the highest grain yield at all environments. Dashen (G6) and ETBW8420 (G18) can be recommended for all environments except for the high land environment, Bore (E1), while Lemu (G1) can be recommended for only Bore (E1). Lole Farm (E5) was the ideal environment while Wane (G2) was the ideal genotype. Advanced line ETBW420 (G18) is recommended to be included in variety verification trials for release as new varieties or to be included crossing program.
Published in | Journal of Chemical, Environmental and Biological Engineering (Volume 6, Issue 1) |
DOI | 10.11648/j.jcebe.20220601.11 |
Page(s) | 1-9 |
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GEI, Stable, Grain Yield, Adapted, Bread Wheat, Southern Ethiopia
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APA Style
Aliyi Kedir, Hussein Mohammed, Tesfaye Letta. (2022). GGE Biplot Analysis of Genotype x Environment Interaction on Bread Wheat (Triticum aestivum L.) Genotypes in Southern Oromia. Journal of Chemical, Environmental and Biological Engineering, 6(1), 1-9. https://doi.org/10.11648/j.jcebe.20220601.11
ACS Style
Aliyi Kedir; Hussein Mohammed; Tesfaye Letta. GGE Biplot Analysis of Genotype x Environment Interaction on Bread Wheat (Triticum aestivum L.) Genotypes in Southern Oromia. J. Chem. Environ. Biol. Eng. 2022, 6(1), 1-9. doi: 10.11648/j.jcebe.20220601.11
@article{10.11648/j.jcebe.20220601.11, author = {Aliyi Kedir and Hussein Mohammed and Tesfaye Letta}, title = {GGE Biplot Analysis of Genotype x Environment Interaction on Bread Wheat (Triticum aestivum L.) Genotypes in Southern Oromia}, journal = {Journal of Chemical, Environmental and Biological Engineering}, volume = {6}, number = {1}, pages = {1-9}, doi = {10.11648/j.jcebe.20220601.11}, url = {https://doi.org/10.11648/j.jcebe.20220601.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jcebe.20220601.11}, abstract = {Today, wheat is among the most important crops grown in Ethiopia, both as a source of food for consumers and as a source of income for farmers. Since Ethiopia is known for its diverse agro-ecology the performance of genotypes differs within and across environments and cultivars or genotypes respond differently to diverse environments. Therefore, studies on Genotype by Environment (GxE) interaction may help to determine whether or not a genotype is stable in performance over a range of environments. Therefore, this study was conducted to identify the best performing stable bread wheat genotype for selected areas and analysis of the environment by GGE biplot. In this experiment, 20 bread wheat genotypes were evaluated using RCBD with three replications at five different locations in southern Oromia. The combined analysis of variance revealed that, there were highly significant differences among environments and among genotypes (p<0.001) for grain yield and yield components and for growth parameters except for days to emergence which was non-significant, indicating the presence of variability in genotypes as well as diversity of growing conditions at different locations. The GxE interaction was highly significant (p<0.001) for all traits except spike length reflecting the differential response of genotypes in various environments. Environments explained 59.1%, genotypes 19.1% and GxE 14.8% of the variability in grin yield. Bore (E1) was the most discriminating environment while Adola (E3) and Liben (E4) were the least discriminating environments. GGE-II explained 89.62% of G+GEI and the angle between pair of all locations was lower than 90°; performance of genotypes at all environments was almost similar, but Bore (E1) was separated from the remaining four environments. The bi-plot had six vertex genotypes, viz. Wane (G2), PBW-343 (G20), Galama (G13), Kakaba (G10), Hawi (G3) and ETBW8420 (G18). Hidase (G7) and Tuse (G8) gave relatively high grain yield and found to be stable, so can be recommended for wide adaptation. Wane (G2) and PBW-343 (G20) were unstable but were predicted to give the highest grain yield at all environments. Dashen (G6) and ETBW8420 (G18) can be recommended for all environments except for the high land environment, Bore (E1), while Lemu (G1) can be recommended for only Bore (E1). Lole Farm (E5) was the ideal environment while Wane (G2) was the ideal genotype. Advanced line ETBW420 (G18) is recommended to be included in variety verification trials for release as new varieties or to be included crossing program.}, year = {2022} }
TY - JOUR T1 - GGE Biplot Analysis of Genotype x Environment Interaction on Bread Wheat (Triticum aestivum L.) Genotypes in Southern Oromia AU - Aliyi Kedir AU - Hussein Mohammed AU - Tesfaye Letta Y1 - 2022/03/03 PY - 2022 N1 - https://doi.org/10.11648/j.jcebe.20220601.11 DO - 10.11648/j.jcebe.20220601.11 T2 - Journal of Chemical, Environmental and Biological Engineering JF - Journal of Chemical, Environmental and Biological Engineering JO - Journal of Chemical, Environmental and Biological Engineering SP - 1 EP - 9 PB - Science Publishing Group SN - 2640-267X UR - https://doi.org/10.11648/j.jcebe.20220601.11 AB - Today, wheat is among the most important crops grown in Ethiopia, both as a source of food for consumers and as a source of income for farmers. Since Ethiopia is known for its diverse agro-ecology the performance of genotypes differs within and across environments and cultivars or genotypes respond differently to diverse environments. Therefore, studies on Genotype by Environment (GxE) interaction may help to determine whether or not a genotype is stable in performance over a range of environments. Therefore, this study was conducted to identify the best performing stable bread wheat genotype for selected areas and analysis of the environment by GGE biplot. In this experiment, 20 bread wheat genotypes were evaluated using RCBD with three replications at five different locations in southern Oromia. The combined analysis of variance revealed that, there were highly significant differences among environments and among genotypes (p<0.001) for grain yield and yield components and for growth parameters except for days to emergence which was non-significant, indicating the presence of variability in genotypes as well as diversity of growing conditions at different locations. The GxE interaction was highly significant (p<0.001) for all traits except spike length reflecting the differential response of genotypes in various environments. Environments explained 59.1%, genotypes 19.1% and GxE 14.8% of the variability in grin yield. Bore (E1) was the most discriminating environment while Adola (E3) and Liben (E4) were the least discriminating environments. GGE-II explained 89.62% of G+GEI and the angle between pair of all locations was lower than 90°; performance of genotypes at all environments was almost similar, but Bore (E1) was separated from the remaining four environments. The bi-plot had six vertex genotypes, viz. Wane (G2), PBW-343 (G20), Galama (G13), Kakaba (G10), Hawi (G3) and ETBW8420 (G18). Hidase (G7) and Tuse (G8) gave relatively high grain yield and found to be stable, so can be recommended for wide adaptation. Wane (G2) and PBW-343 (G20) were unstable but were predicted to give the highest grain yield at all environments. Dashen (G6) and ETBW8420 (G18) can be recommended for all environments except for the high land environment, Bore (E1), while Lemu (G1) can be recommended for only Bore (E1). Lole Farm (E5) was the ideal environment while Wane (G2) was the ideal genotype. Advanced line ETBW420 (G18) is recommended to be included in variety verification trials for release as new varieties or to be included crossing program. VL - 6 IS - 1 ER -