Phenotypic Characterization of Coffee (<i>Coffea Arabica </i>L<i>.</i>) Germplasm, in Ethiopia

Masreshaw Yirga

doi:doi:10.11648/j.ajbio.20210902.11

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Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia

Masreshaw Yirga

Published in American Journal of BioScience (Volume 9, Issue 2)

Received: 13 January 2021 Accepted: 17 March 2021 Published: 30 March 2021

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Abstract

Identification and characterization of coffee accessions in the base population is important for a successful conservation and utilization of genetic resources. The study was conducted at Metu Agricultural Research Sub Center to characterize extent of genetic variability of coffee accessions. Sixty four Coffee collections were used for this study. The experiment was superimposed during 2018 cropping seasons on six years old coffee trees, which were laid down in 8x8 simple lattice designs. The orchard was managed as per the coffee agronomic production practices. Data on 12 qualitative traits were recorded from four representative trees per row for each accession. Estimates of frequency distribution and Shannon and Weaver diversity index using qualitative traits revealed the presence of genetic variability between coffee geremplasm. The maximum diversity index (H’) (highly polymorphic) was found for fruit color (1.22) followed by young leaf tip color (1.08), stipule shape (1.06), leaf shape (1.04), angle of insertion on primary branches (0.97), fruit shape (0.91), growth habit (0.90) and branching habit (0.73), whereas low diversity (lowest polymorphic) was observed in fruit ribs (H`=0.50) and stem habit (H`=0.35). Cluster analysis Grouped 64 coffee accessions in to five clusters. Maximum numbers of accessions were included in cluster-II (29) followed by cluster-I (27), cluster-III (6) and cluster-IV (1). Thus, there is a chance to develop hybrid vigor through crossing diverged parents found in different cluster. Therefore, current study substantiated the existence of sufficient genetic variability in Yayu coffee germplasm for various morphological traits, which can be employed for successful conservation and utilization of genetic resources, as well to identify possible duplicates.

Published in	American Journal of BioScience (Volume 9, Issue 2)
DOI	10.11648/j.ajbio.20210902.11
Page(s)	34-41
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

Accessions, Coffee, Shannon Index, Cluster

References

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APA Style

Masreshaw Yirga. (2021). Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. American Journal of BioScience, 9(2), 34-41. https://doi.org/10.11648/j.ajbio.20210902.11

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ACS Style

Masreshaw Yirga. Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. Am. J. BioScience 2021, 9(2), 34-41. doi: 10.11648/j.ajbio.20210902.11

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AMA Style

Masreshaw Yirga. Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. Am J BioScience. 2021;9(2):34-41. doi: 10.11648/j.ajbio.20210902.11

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@article{10.11648/j.ajbio.20210902.11,
  author = {Masreshaw Yirga},
  title = {Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia},
  journal = {American Journal of BioScience},
  volume = {9},
  number = {2},
  pages = {34-41},
  doi = {10.11648/j.ajbio.20210902.11},
  url = {https://doi.org/10.11648/j.ajbio.20210902.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbio.20210902.11},
  abstract = {Identification and characterization of coffee accessions in the base population is important for a successful conservation and utilization of genetic resources. The study was conducted at Metu Agricultural Research Sub Center to characterize extent of genetic variability of coffee accessions. Sixty four Coffee collections were used for this study. The experiment was superimposed during 2018 cropping seasons on six years old coffee trees, which were laid down in 8x8 simple lattice designs. The orchard was managed as per the coffee agronomic production practices. Data on 12 qualitative traits were recorded from four representative trees per row for each accession. Estimates of frequency distribution and Shannon and Weaver diversity index using qualitative traits revealed the presence of genetic variability between coffee geremplasm. The maximum diversity index (H’) (highly polymorphic) was found for fruit color (1.22) followed by young leaf tip color (1.08), stipule shape (1.06), leaf shape (1.04), angle of insertion on primary branches (0.97), fruit shape (0.91), growth habit (0.90) and branching habit (0.73), whereas low diversity (lowest polymorphic) was observed in fruit ribs (H`=0.50) and stem habit (H`=0.35). Cluster analysis Grouped 64 coffee accessions in to five clusters. Maximum numbers of accessions were included in cluster-II (29) followed by cluster-I (27), cluster-III (6) and cluster-IV (1). Thus, there is a chance to develop hybrid vigor through crossing diverged parents found in different cluster. Therefore, current study substantiated the existence of sufficient genetic variability in Yayu coffee germplasm for various morphological traits, which can be employed for successful conservation and utilization of genetic resources, as well to identify possible duplicates.},
 year = {2021}
}

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TY  - JOUR
T1  - Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia
AU  - Masreshaw Yirga
Y1  - 2021/03/30
PY  - 2021
N1  - https://doi.org/10.11648/j.ajbio.20210902.11
DO  - 10.11648/j.ajbio.20210902.11
T2  - American Journal of BioScience
JF  - American Journal of BioScience
JO  - American Journal of BioScience
SP  - 34
EP  - 41
PB  - Science Publishing Group
SN  - 2330-0167
UR  - https://doi.org/10.11648/j.ajbio.20210902.11
AB  - Identification and characterization of coffee accessions in the base population is important for a successful conservation and utilization of genetic resources. The study was conducted at Metu Agricultural Research Sub Center to characterize extent of genetic variability of coffee accessions. Sixty four Coffee collections were used for this study. The experiment was superimposed during 2018 cropping seasons on six years old coffee trees, which were laid down in 8x8 simple lattice designs. The orchard was managed as per the coffee agronomic production practices. Data on 12 qualitative traits were recorded from four representative trees per row for each accession. Estimates of frequency distribution and Shannon and Weaver diversity index using qualitative traits revealed the presence of genetic variability between coffee geremplasm. The maximum diversity index (H’) (highly polymorphic) was found for fruit color (1.22) followed by young leaf tip color (1.08), stipule shape (1.06), leaf shape (1.04), angle of insertion on primary branches (0.97), fruit shape (0.91), growth habit (0.90) and branching habit (0.73), whereas low diversity (lowest polymorphic) was observed in fruit ribs (H`=0.50) and stem habit (H`=0.35). Cluster analysis Grouped 64 coffee accessions in to five clusters. Maximum numbers of accessions were included in cluster-II (29) followed by cluster-I (27), cluster-III (6) and cluster-IV (1). Thus, there is a chance to develop hybrid vigor through crossing diverged parents found in different cluster. Therefore, current study substantiated the existence of sufficient genetic variability in Yayu coffee germplasm for various morphological traits, which can be employed for successful conservation and utilization of genetic resources, as well to identify possible duplicates.
VL  - 9
IS  - 2
ER  -

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Author Information

Masreshaw Yirga

Ethiopian Institutes of Agricultural Research, Jimma Agricultural Research Center, Department of Plant Breeding, Jimma, Ethiopia

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APA Style

Masreshaw Yirga. (2021). Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. American Journal of BioScience, 9(2), 34-41. https://doi.org/10.11648/j.ajbio.20210902.11

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ACS Style

Masreshaw Yirga. Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. Am. J. BioScience 2021, 9(2), 34-41. doi: 10.11648/j.ajbio.20210902.11

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AMA Style

Masreshaw Yirga. Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia. Am J BioScience. 2021;9(2):34-41. doi: 10.11648/j.ajbio.20210902.11

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@article{10.11648/j.ajbio.20210902.11,
  author = {Masreshaw Yirga},
  title = {Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia},
  journal = {American Journal of BioScience},
  volume = {9},
  number = {2},
  pages = {34-41},
  doi = {10.11648/j.ajbio.20210902.11},
  url = {https://doi.org/10.11648/j.ajbio.20210902.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbio.20210902.11},
  abstract = {Identification and characterization of coffee accessions in the base population is important for a successful conservation and utilization of genetic resources. The study was conducted at Metu Agricultural Research Sub Center to characterize extent of genetic variability of coffee accessions. Sixty four Coffee collections were used for this study. The experiment was superimposed during 2018 cropping seasons on six years old coffee trees, which were laid down in 8x8 simple lattice designs. The orchard was managed as per the coffee agronomic production practices. Data on 12 qualitative traits were recorded from four representative trees per row for each accession. Estimates of frequency distribution and Shannon and Weaver diversity index using qualitative traits revealed the presence of genetic variability between coffee geremplasm. The maximum diversity index (H’) (highly polymorphic) was found for fruit color (1.22) followed by young leaf tip color (1.08), stipule shape (1.06), leaf shape (1.04), angle of insertion on primary branches (0.97), fruit shape (0.91), growth habit (0.90) and branching habit (0.73), whereas low diversity (lowest polymorphic) was observed in fruit ribs (H`=0.50) and stem habit (H`=0.35). Cluster analysis Grouped 64 coffee accessions in to five clusters. Maximum numbers of accessions were included in cluster-II (29) followed by cluster-I (27), cluster-III (6) and cluster-IV (1). Thus, there is a chance to develop hybrid vigor through crossing diverged parents found in different cluster. Therefore, current study substantiated the existence of sufficient genetic variability in Yayu coffee germplasm for various morphological traits, which can be employed for successful conservation and utilization of genetic resources, as well to identify possible duplicates.},
 year = {2021}
}

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TY  - JOUR
T1  - Phenotypic Characterization of Coffee (Coffea Arabica L.) Germplasm, in Ethiopia
AU  - Masreshaw Yirga
Y1  - 2021/03/30
PY  - 2021
N1  - https://doi.org/10.11648/j.ajbio.20210902.11
DO  - 10.11648/j.ajbio.20210902.11
T2  - American Journal of BioScience
JF  - American Journal of BioScience
JO  - American Journal of BioScience
SP  - 34
EP  - 41
PB  - Science Publishing Group
SN  - 2330-0167
UR  - https://doi.org/10.11648/j.ajbio.20210902.11
AB  - Identification and characterization of coffee accessions in the base population is important for a successful conservation and utilization of genetic resources. The study was conducted at Metu Agricultural Research Sub Center to characterize extent of genetic variability of coffee accessions. Sixty four Coffee collections were used for this study. The experiment was superimposed during 2018 cropping seasons on six years old coffee trees, which were laid down in 8x8 simple lattice designs. The orchard was managed as per the coffee agronomic production practices. Data on 12 qualitative traits were recorded from four representative trees per row for each accession. Estimates of frequency distribution and Shannon and Weaver diversity index using qualitative traits revealed the presence of genetic variability between coffee geremplasm. The maximum diversity index (H’) (highly polymorphic) was found for fruit color (1.22) followed by young leaf tip color (1.08), stipule shape (1.06), leaf shape (1.04), angle of insertion on primary branches (0.97), fruit shape (0.91), growth habit (0.90) and branching habit (0.73), whereas low diversity (lowest polymorphic) was observed in fruit ribs (H`=0.50) and stem habit (H`=0.35). Cluster analysis Grouped 64 coffee accessions in to five clusters. Maximum numbers of accessions were included in cluster-II (29) followed by cluster-I (27), cluster-III (6) and cluster-IV (1). Thus, there is a chance to develop hybrid vigor through crossing diverged parents found in different cluster. Therefore, current study substantiated the existence of sufficient genetic variability in Yayu coffee germplasm for various morphological traits, which can be employed for successful conservation and utilization of genetic resources, as well to identify possible duplicates.
VL  - 9
IS  - 2
ER  -

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