American Journal of BioScience

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Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia

Received: Jul. 28, 2023    Accepted: Aug. 17, 2023    Published: Aug. 31, 2023
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Abstract

Tef [Eragrostis tef (Zucc.) Trotter] is one of the most significant cereal crops farmed in Ethiopia; it is the first crop in terms of area coverage; nevertheless, its production has been partially hampered by low grain yield and less stability of the released tef genotypes. This study was done to determine the degree of stability and genotype by environment interactions in tef genotypes. Twelve advanced tef genotypes were examined in seven environments under rain-fed conditions using the RCB Design with four replications. AMMI analysis indicated that the environments (E), genotypes (G), and genotype by environment interaction (GEI) were all significantly (p 0.001) affected the yield of tef grains, showing the presence of genetic variation and the potential selection of stable genotypes. As a result, 73.5% of the total sum of squares could be explained by factors such as the environment proving that the test sites' various surroundings led to significant differences in grain output. Principal component analysis was used to further split the GEI; the first two multiplicative axis terms (PCA1 and PCA2) explained 50.8% and 22.5% (73.3%) of the GEI sum of squares, respectively. The standard check Quncho had a grain yield of 1790 kg ha-1, while G12 (DZ-CR-387XDZ-01-974-(RIL# 26B) had a grain yield of 2090 kg ha-1and also more stable, according to the mean grain yield value of the examined genotypes over environments. As a result, this genotype would be used to boost tef production and productivity as well as serve as parent material for tef breeding.

DOI 10.11648/j.ajbio.20231104.15
Published in American Journal of BioScience ( Volume 11, Issue 4, July 2023 )
Page(s) 104-110
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

AMMI Analysis, Genotype, GGE Biplot, GEI, PCA, Stability, Tef

References
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    Getahun Bekana. (2023). Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia. American Journal of BioScience, 11(4), 104-110. https://doi.org/10.11648/j.ajbio.20231104.15

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    Getahun Bekana. Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia. Am. J. BioScience 2023, 11(4), 104-110. doi: 10.11648/j.ajbio.20231104.15

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    AMA Style

    Getahun Bekana. Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia. Am J BioScience. 2023;11(4):104-110. doi: 10.11648/j.ajbio.20231104.15

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  • @article{10.11648/j.ajbio.20231104.15,
      author = {Getahun Bekana},
      title = {Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia},
      journal = {American Journal of BioScience},
      volume = {11},
      number = {4},
      pages = {104-110},
      doi = {10.11648/j.ajbio.20231104.15},
      url = {https://doi.org/10.11648/j.ajbio.20231104.15},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajbio.20231104.15},
      abstract = {Tef [Eragrostis tef (Zucc.) Trotter] is one of the most significant cereal crops farmed in Ethiopia; it is the first crop in terms of area coverage; nevertheless, its production has been partially hampered by low grain yield and less stability of the released tef genotypes. This study was done to determine the degree of stability and genotype by environment interactions in tef genotypes. Twelve advanced tef genotypes were examined in seven environments under rain-fed conditions using the RCB Design with four replications. AMMI analysis indicated that the environments (E), genotypes (G), and genotype by environment interaction (GEI) were all significantly (p 0.001) affected the yield of tef grains, showing the presence of genetic variation and the potential selection of stable genotypes. As a result, 73.5% of the total sum of squares could be explained by factors such as the environment proving that the test sites' various surroundings led to significant differences in grain output. Principal component analysis was used to further split the GEI; the first two multiplicative axis terms (PCA1 and PCA2) explained 50.8% and 22.5% (73.3%) of the GEI sum of squares, respectively. The standard check Quncho had a grain yield of 1790 kg ha-1, while G12 (DZ-CR-387XDZ-01-974-(RIL# 26B) had a grain yield of 2090 kg ha-1and also more stable, according to the mean grain yield value of the examined genotypes over environments. As a result, this genotype would be used to boost tef production and productivity as well as serve as parent material for tef breeding.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Genotype X Environment Interactions and Yield Stability of Tef (Eragrostis tef) Genotypes Grown in Central Parts of Ethiopia
    AU  - Getahun Bekana
    Y1  - 2023/08/31
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    AB  - Tef [Eragrostis tef (Zucc.) Trotter] is one of the most significant cereal crops farmed in Ethiopia; it is the first crop in terms of area coverage; nevertheless, its production has been partially hampered by low grain yield and less stability of the released tef genotypes. This study was done to determine the degree of stability and genotype by environment interactions in tef genotypes. Twelve advanced tef genotypes were examined in seven environments under rain-fed conditions using the RCB Design with four replications. AMMI analysis indicated that the environments (E), genotypes (G), and genotype by environment interaction (GEI) were all significantly (p 0.001) affected the yield of tef grains, showing the presence of genetic variation and the potential selection of stable genotypes. As a result, 73.5% of the total sum of squares could be explained by factors such as the environment proving that the test sites' various surroundings led to significant differences in grain output. Principal component analysis was used to further split the GEI; the first two multiplicative axis terms (PCA1 and PCA2) explained 50.8% and 22.5% (73.3%) of the GEI sum of squares, respectively. The standard check Quncho had a grain yield of 1790 kg ha-1, while G12 (DZ-CR-387XDZ-01-974-(RIL# 26B) had a grain yield of 2090 kg ha-1and also more stable, according to the mean grain yield value of the examined genotypes over environments. As a result, this genotype would be used to boost tef production and productivity as well as serve as parent material for tef breeding.
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Author Information
  • Ethiopian Institute of Agricultural Research, Holeta Agricultural Research Center, Holeta, Ethiopia

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