Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (<i>Coffea arabica</i> L.) Accessions

Meseret Degefa; Sentayehu Alamerew; Ali Mohammed; Adeba Gemechu

doi:doi:10.11648/j.ajaf.20210904.22

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Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions

Meseret Degefa, Sentayehu Alamerew, Ali Mohammed, Adeba Gemechu

Published in American Journal of Agriculture and Forestry (Volume 9, Issue 4)

Received: 24 July 2021 Accepted: 6 August 2021 Published: 18 August 2021

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Abstract

Ethiopia is the motherland and center of genetic diversity of Arabica coffee (Coffea arabica L., Rubiaceae). Receiving extra information on genetic variability is a precondition for more enhancement of coffee (Coffea arabica L.). The present study was carried out to study the correlation and path coefficient analysis of 104 entries consisting of 100 accessions from southern parts of Ethiopia and four standard cultivars were evaluated using augmented design. Data on 22 quantitative traits were recorded from five envoy trees per row for each accession. The result revealed that, for nearly all of the traits phenotypic correlation coefficients were lower than genotypic correlation coefficients, indicative of the inherent union among various traits is less influenced by environment. The genotypic path coefficient analysis revealed that leaf area, number of primary branches, number of nodes of primary branches, canopy diameter, bean width, stem diameter, fruit width, fruit thickness, hundred bean weight, bean thickness and average inter node length of primary branches, had positive direct effects on yield per tree, at the same time as the other traits affected yield indirectly, primarily through total plant height, number of secondary branches, height up to first primary branches, fruit length, bean length, average length of primary branches, leaf width and leaf length, show negative direct sound effects on yield per tree.

Published in	American Journal of Agriculture and Forestry (Volume 9, Issue 4)
DOI	10.11648/j.ajaf.20210904.22
Page(s)	248-257
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), 2021. Published by Science Publishing Group

Keywords

Coffea Arabica, Genetic Variability, Correlation, Path Coefficient Analysis, Yield and Yield Components, Germplasm, Quantitative Characters

References

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[17]	IPGRI (1996). Description for coffee (Coffea sp. and Psilanthus sp.). International Plant Genetic Resource Institute, Rome.
[18]	Singh RK, Chaudhary BD (1985). Biometrical methods in quantitative genetic analysis. Kalyani publishers, New Delhi-Ludhiana, India’s p. 318.
[19]	Seyoum Seifu. (2003). Genetic divergence for seedling parameters and associations among agronomic traits in the Ethiopian coffee (C. arabica L.) germplasm. An MSC thesis presented to the school of graduate studies of Haramaya University, Haramaya, Ethiopia. pp. 91.
[20]	Ermias Habte (2005). Evaluation of Wellega coffee germplasm for yield, yield components and resistance to coffee berry disease at early bearing stage. M.Sc. Thesis Submitted to Graduate Studies of Haramaya University, Haramaya, Ethiopia. 69 pp.
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APA Style

Meseret Degefa, Sentayehu Alamerew, Ali Mohammed, Adeba Gemechu. (2021). Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. American Journal of Agriculture and Forestry, 9(4), 248-257. https://doi.org/10.11648/j.ajaf.20210904.22

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ACS Style

Meseret Degefa; Sentayehu Alamerew; Ali Mohammed; Adeba Gemechu. Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. Am. J. Agric. For. 2021, 9(4), 248-257. doi: 10.11648/j.ajaf.20210904.22

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AMA Style

Meseret Degefa, Sentayehu Alamerew, Ali Mohammed, Adeba Gemechu. Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. Am J Agric For. 2021;9(4):248-257. doi: 10.11648/j.ajaf.20210904.22

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@article{10.11648/j.ajaf.20210904.22,
  author = {Meseret Degefa and Sentayehu Alamerew and Ali Mohammed and Adeba Gemechu},
  title = {Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions},
  journal = {American Journal of Agriculture and Forestry},
  volume = {9},
  number = {4},
  pages = {248-257},
  doi = {10.11648/j.ajaf.20210904.22},
  url = {https://doi.org/10.11648/j.ajaf.20210904.22},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20210904.22},
  abstract = {Ethiopia is the motherland and center of genetic diversity of Arabica coffee (Coffea arabica L., Rubiaceae). Receiving extra information on genetic variability is a precondition for more enhancement of coffee (Coffea arabica L.). The present study was carried out to study the correlation and path coefficient analysis of 104 entries consisting of 100 accessions from southern parts of Ethiopia and four standard cultivars were evaluated using augmented design. Data on 22 quantitative traits were recorded from five envoy trees per row for each accession. The result revealed that, for nearly all of the traits phenotypic correlation coefficients were lower than genotypic correlation coefficients, indicative of the inherent union among various traits is less influenced by environment. The genotypic path coefficient analysis revealed that leaf area, number of primary branches, number of nodes of primary branches, canopy diameter, bean width, stem diameter, fruit width, fruit thickness, hundred bean weight, bean thickness and average inter node length of primary branches, had positive direct effects on yield per tree, at the same time as the other traits affected yield indirectly, primarily through total plant height, number of secondary branches, height up to first primary branches, fruit length, bean length, average length of primary branches, leaf width and leaf length, show negative direct sound effects on yield per tree.},
 year = {2021}
}

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TY  - JOUR
T1  - Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions
AU  - Meseret Degefa
AU  - Sentayehu Alamerew
AU  - Ali Mohammed
AU  - Adeba Gemechu
Y1  - 2021/08/18
PY  - 2021
N1  - https://doi.org/10.11648/j.ajaf.20210904.22
DO  - 10.11648/j.ajaf.20210904.22
T2  - American Journal of Agriculture and Forestry
JF  - American Journal of Agriculture and Forestry
JO  - American Journal of Agriculture and Forestry
SP  - 248
EP  - 257
PB  - Science Publishing Group
SN  - 2330-8591
UR  - https://doi.org/10.11648/j.ajaf.20210904.22
AB  - Ethiopia is the motherland and center of genetic diversity of Arabica coffee (Coffea arabica L., Rubiaceae). Receiving extra information on genetic variability is a precondition for more enhancement of coffee (Coffea arabica L.). The present study was carried out to study the correlation and path coefficient analysis of 104 entries consisting of 100 accessions from southern parts of Ethiopia and four standard cultivars were evaluated using augmented design. Data on 22 quantitative traits were recorded from five envoy trees per row for each accession. The result revealed that, for nearly all of the traits phenotypic correlation coefficients were lower than genotypic correlation coefficients, indicative of the inherent union among various traits is less influenced by environment. The genotypic path coefficient analysis revealed that leaf area, number of primary branches, number of nodes of primary branches, canopy diameter, bean width, stem diameter, fruit width, fruit thickness, hundred bean weight, bean thickness and average inter node length of primary branches, had positive direct effects on yield per tree, at the same time as the other traits affected yield indirectly, primarily through total plant height, number of secondary branches, height up to first primary branches, fruit length, bean length, average length of primary branches, leaf width and leaf length, show negative direct sound effects on yield per tree.
VL  - 9
IS  - 4
ER  -

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Author Information

Meseret Degefa

Awada Agricultural Research Sub- Centre, Yirgalema, Ethiopia
Sentayehu Alamerew

Colleges of Agriculture and Veterinary Medicine (JUCAVM), Jimma University, Jimma, Ethiopia
Ali Mohammed

Colleges of Agriculture and Veterinary Medicine (JUCAVM), Jimma University, Jimma, Ethiopia
Adeba Gemechu

Colleges of Agriculture and Veterinary Medicine (JUCAVM), Jimma University, Jimma, Ethiopia

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APA Style

Meseret Degefa, Sentayehu Alamerew, Ali Mohammed, Adeba Gemechu. (2021). Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. American Journal of Agriculture and Forestry, 9(4), 248-257. https://doi.org/10.11648/j.ajaf.20210904.22

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ACS Style

Meseret Degefa; Sentayehu Alamerew; Ali Mohammed; Adeba Gemechu. Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. Am. J. Agric. For. 2021, 9(4), 248-257. doi: 10.11648/j.ajaf.20210904.22

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AMA Style

Meseret Degefa, Sentayehu Alamerew, Ali Mohammed, Adeba Gemechu. Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions. Am J Agric For. 2021;9(4):248-257. doi: 10.11648/j.ajaf.20210904.22

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@article{10.11648/j.ajaf.20210904.22,
  author = {Meseret Degefa and Sentayehu Alamerew and Ali Mohammed and Adeba Gemechu},
  title = {Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions},
  journal = {American Journal of Agriculture and Forestry},
  volume = {9},
  number = {4},
  pages = {248-257},
  doi = {10.11648/j.ajaf.20210904.22},
  url = {https://doi.org/10.11648/j.ajaf.20210904.22},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20210904.22},
  abstract = {Ethiopia is the motherland and center of genetic diversity of Arabica coffee (Coffea arabica L., Rubiaceae). Receiving extra information on genetic variability is a precondition for more enhancement of coffee (Coffea arabica L.). The present study was carried out to study the correlation and path coefficient analysis of 104 entries consisting of 100 accessions from southern parts of Ethiopia and four standard cultivars were evaluated using augmented design. Data on 22 quantitative traits were recorded from five envoy trees per row for each accession. The result revealed that, for nearly all of the traits phenotypic correlation coefficients were lower than genotypic correlation coefficients, indicative of the inherent union among various traits is less influenced by environment. The genotypic path coefficient analysis revealed that leaf area, number of primary branches, number of nodes of primary branches, canopy diameter, bean width, stem diameter, fruit width, fruit thickness, hundred bean weight, bean thickness and average inter node length of primary branches, had positive direct effects on yield per tree, at the same time as the other traits affected yield indirectly, primarily through total plant height, number of secondary branches, height up to first primary branches, fruit length, bean length, average length of primary branches, leaf width and leaf length, show negative direct sound effects on yield per tree.},
 year = {2021}
}

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TY  - JOUR
T1  - Correlation and Path Coefficient Analysis of Morphological Quantitative Characters in Some Ethiopian Specialty Coffee (Coffea arabica L.) Accessions
AU  - Meseret Degefa
AU  - Sentayehu Alamerew
AU  - Ali Mohammed
AU  - Adeba Gemechu
Y1  - 2021/08/18
PY  - 2021
N1  - https://doi.org/10.11648/j.ajaf.20210904.22
DO  - 10.11648/j.ajaf.20210904.22
T2  - American Journal of Agriculture and Forestry
JF  - American Journal of Agriculture and Forestry
JO  - American Journal of Agriculture and Forestry
SP  - 248
EP  - 257
PB  - Science Publishing Group
SN  - 2330-8591
UR  - https://doi.org/10.11648/j.ajaf.20210904.22
AB  - Ethiopia is the motherland and center of genetic diversity of Arabica coffee (Coffea arabica L., Rubiaceae). Receiving extra information on genetic variability is a precondition for more enhancement of coffee (Coffea arabica L.). The present study was carried out to study the correlation and path coefficient analysis of 104 entries consisting of 100 accessions from southern parts of Ethiopia and four standard cultivars were evaluated using augmented design. Data on 22 quantitative traits were recorded from five envoy trees per row for each accession. The result revealed that, for nearly all of the traits phenotypic correlation coefficients were lower than genotypic correlation coefficients, indicative of the inherent union among various traits is less influenced by environment. The genotypic path coefficient analysis revealed that leaf area, number of primary branches, number of nodes of primary branches, canopy diameter, bean width, stem diameter, fruit width, fruit thickness, hundred bean weight, bean thickness and average inter node length of primary branches, had positive direct effects on yield per tree, at the same time as the other traits affected yield indirectly, primarily through total plant height, number of secondary branches, height up to first primary branches, fruit length, bean length, average length of primary branches, leaf width and leaf length, show negative direct sound effects on yield per tree.
VL  - 9
IS  - 4
ER  -

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