Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes

Wegayehu Assefa; Edossa Etissa; Asmare Dagnew; Lemma Ayele; Girma Kebede; Mikiyas Damtew; Merkebu Ayalew

doi:doi:10.11648/j.abb.20160402.11

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Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes

Wegayehu Assefa, Edossa Etissa, Asmare Dagnew, Lemma Ayele, Girma Kebede, Mikiyas Damtew, Merkebu Ayalew

Published in Advances in Bioscience and Bioengineering (Volume 4, Issue 2)

Received: 2 June 2016 Accepted: 12 June 2016 Published: 21 July 2016

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Abstract

An experiment was conducted to evaluate genetic variability and association of characters of hermaphrodite papaya genotypes for further breeding improvement. Sixteen hermaphrodite papaya genotypes were evaluated at Melkassa Agricultural Research Centre in a randomized complete block design experiment with two replicates from 2011 to 2013. Based on the analysis, the genotypes showed variation in their performances. High heritability coupled with high genetic advance recorded for fruit weight (94, 44.75) followed by inter-node length (86, 37.3), fruit length (94, 29.25), and total number of fruit per plant (75, 30.94). Yield per plant exhibited highly significant positive correlation with inter-node length (0.7, 0.58), fruit length (0.49, 0.46) and fruit diameter (0.41, 0.44) both genotypic and phenotypic levels respectively. Based on path coefficient analysis, number of fruits per plant had the highest direct effect (1.05) on fruit yield per plant followed by fruit length (0.56), fruit diameter (0.49) and fruit weight (0.45). The overall results of this study indicated number of fruits, fruit length, fruit diameter, fruit weight and inter-node length exhibited high variation, heritability and genetic advance, and positive direct path coefficient effect on fruit yield per plant. Hence, these traits can be used as principal selection criteria for papaya fruit yield improvement.

Published in	Advances in Bioscience and Bioengineering (Volume 4, Issue 2)
DOI	10.11648/j.abb.20160402.11
Page(s)	10-15
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), 2016. Published by Science Publishing Group

Keywords

Heritability, Genetic Advance, Association, Path Analysis, Genotypes

References

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APA Style

Wegayehu Assefa, Edossa Etissa, Asmare Dagnew, Lemma Ayele, Girma Kebede, et al. (2016). Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Advances in Bioscience and Bioengineering, 4(2), 10-15. https://doi.org/10.11648/j.abb.20160402.11

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ACS Style

Wegayehu Assefa; Edossa Etissa; Asmare Dagnew; Lemma Ayele; Girma Kebede, et al. Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Adv. BioSci. Bioeng. 2016, 4(2), 10-15. doi: 10.11648/j.abb.20160402.11

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AMA Style

Wegayehu Assefa, Edossa Etissa, Asmare Dagnew, Lemma Ayele, Girma Kebede, et al. Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Adv BioSci Bioeng. 2016;4(2):10-15. doi: 10.11648/j.abb.20160402.11

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@article{10.11648/j.abb.20160402.11,
  author = {Wegayehu Assefa and Edossa Etissa and Asmare Dagnew and Lemma Ayele and Girma Kebede and Mikiyas Damtew and Merkebu Ayalew},
  title = {Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes},
  journal = {Advances in Bioscience and Bioengineering},
  volume = {4},
  number = {2},
  pages = {10-15},
  doi = {10.11648/j.abb.20160402.11},
  url = {https://doi.org/10.11648/j.abb.20160402.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.abb.20160402.11},
  abstract = {An experiment was conducted to evaluate genetic variability and association of characters of hermaphrodite papaya genotypes for further breeding improvement. Sixteen hermaphrodite papaya genotypes were evaluated at Melkassa Agricultural Research Centre in a randomized complete block design experiment with two replicates from 2011 to 2013. Based on the analysis, the genotypes showed variation in their performances. High heritability coupled with high genetic advance recorded for fruit weight (94, 44.75) followed by inter-node length (86, 37.3), fruit length (94, 29.25), and total number of fruit per plant (75, 30.94). Yield per plant exhibited highly significant positive correlation with inter-node length (0.7, 0.58), fruit length (0.49, 0.46) and fruit diameter (0.41, 0.44) both genotypic and phenotypic levels respectively. Based on path coefficient analysis, number of fruits per plant had the highest direct effect (1.05) on fruit yield per plant followed by fruit length (0.56), fruit diameter (0.49) and fruit weight (0.45). The overall results of this study indicated number of fruits, fruit length, fruit diameter, fruit weight and inter-node length exhibited high variation, heritability and genetic advance, and positive direct path coefficient effect on fruit yield per plant. Hence, these traits can be used as principal selection criteria for papaya fruit yield improvement.},
 year = {2016}
}

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TY  - JOUR
T1  - Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes
AU  - Wegayehu Assefa
AU  - Edossa Etissa
AU  - Asmare Dagnew
AU  - Lemma Ayele
AU  - Girma Kebede
AU  - Mikiyas Damtew
AU  - Merkebu Ayalew
Y1  - 2016/07/21
PY  - 2016
N1  - https://doi.org/10.11648/j.abb.20160402.11
DO  - 10.11648/j.abb.20160402.11
T2  - Advances in Bioscience and Bioengineering
JF  - Advances in Bioscience and Bioengineering
JO  - Advances in Bioscience and Bioengineering
SP  - 10
EP  - 15
PB  - Science Publishing Group
SN  - 2330-4162
UR  - https://doi.org/10.11648/j.abb.20160402.11
AB  - An experiment was conducted to evaluate genetic variability and association of characters of hermaphrodite papaya genotypes for further breeding improvement. Sixteen hermaphrodite papaya genotypes were evaluated at Melkassa Agricultural Research Centre in a randomized complete block design experiment with two replicates from 2011 to 2013. Based on the analysis, the genotypes showed variation in their performances. High heritability coupled with high genetic advance recorded for fruit weight (94, 44.75) followed by inter-node length (86, 37.3), fruit length (94, 29.25), and total number of fruit per plant (75, 30.94). Yield per plant exhibited highly significant positive correlation with inter-node length (0.7, 0.58), fruit length (0.49, 0.46) and fruit diameter (0.41, 0.44) both genotypic and phenotypic levels respectively. Based on path coefficient analysis, number of fruits per plant had the highest direct effect (1.05) on fruit yield per plant followed by fruit length (0.56), fruit diameter (0.49) and fruit weight (0.45). The overall results of this study indicated number of fruits, fruit length, fruit diameter, fruit weight and inter-node length exhibited high variation, heritability and genetic advance, and positive direct path coefficient effect on fruit yield per plant. Hence, these traits can be used as principal selection criteria for papaya fruit yield improvement.
VL  - 4
IS  - 2
ER  -

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Author Information

Wegayehu Assefa

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Edossa Etissa

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Asmare Dagnew

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Lemma Ayele

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Girma Kebede

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Mikiyas Damtew

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia
Merkebu Ayalew

Department of Horticulture, Ethiopian Institute of Agricultural Research, Adama, Ethiopia

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APA Style

Wegayehu Assefa, Edossa Etissa, Asmare Dagnew, Lemma Ayele, Girma Kebede, et al. (2016). Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Advances in Bioscience and Bioengineering, 4(2), 10-15. https://doi.org/10.11648/j.abb.20160402.11

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ACS Style

Wegayehu Assefa; Edossa Etissa; Asmare Dagnew; Lemma Ayele; Girma Kebede, et al. Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Adv. BioSci. Bioeng. 2016, 4(2), 10-15. doi: 10.11648/j.abb.20160402.11

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AMA Style

Wegayehu Assefa, Edossa Etissa, Asmare Dagnew, Lemma Ayele, Girma Kebede, et al. Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes. Adv BioSci Bioeng. 2016;4(2):10-15. doi: 10.11648/j.abb.20160402.11

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@article{10.11648/j.abb.20160402.11,
  author = {Wegayehu Assefa and Edossa Etissa and Asmare Dagnew and Lemma Ayele and Girma Kebede and Mikiyas Damtew and Merkebu Ayalew},
  title = {Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes},
  journal = {Advances in Bioscience and Bioengineering},
  volume = {4},
  number = {2},
  pages = {10-15},
  doi = {10.11648/j.abb.20160402.11},
  url = {https://doi.org/10.11648/j.abb.20160402.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.abb.20160402.11},
  abstract = {An experiment was conducted to evaluate genetic variability and association of characters of hermaphrodite papaya genotypes for further breeding improvement. Sixteen hermaphrodite papaya genotypes were evaluated at Melkassa Agricultural Research Centre in a randomized complete block design experiment with two replicates from 2011 to 2013. Based on the analysis, the genotypes showed variation in their performances. High heritability coupled with high genetic advance recorded for fruit weight (94, 44.75) followed by inter-node length (86, 37.3), fruit length (94, 29.25), and total number of fruit per plant (75, 30.94). Yield per plant exhibited highly significant positive correlation with inter-node length (0.7, 0.58), fruit length (0.49, 0.46) and fruit diameter (0.41, 0.44) both genotypic and phenotypic levels respectively. Based on path coefficient analysis, number of fruits per plant had the highest direct effect (1.05) on fruit yield per plant followed by fruit length (0.56), fruit diameter (0.49) and fruit weight (0.45). The overall results of this study indicated number of fruits, fruit length, fruit diameter, fruit weight and inter-node length exhibited high variation, heritability and genetic advance, and positive direct path coefficient effect on fruit yield per plant. Hence, these traits can be used as principal selection criteria for papaya fruit yield improvement.},
 year = {2016}
}

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TY  - JOUR
T1  - Genetic Variability and Association of Characters of Hermaphrodite Papaya Genotypes
AU  - Wegayehu Assefa
AU  - Edossa Etissa
AU  - Asmare Dagnew
AU  - Lemma Ayele
AU  - Girma Kebede
AU  - Mikiyas Damtew
AU  - Merkebu Ayalew
Y1  - 2016/07/21
PY  - 2016
N1  - https://doi.org/10.11648/j.abb.20160402.11
DO  - 10.11648/j.abb.20160402.11
T2  - Advances in Bioscience and Bioengineering
JF  - Advances in Bioscience and Bioengineering
JO  - Advances in Bioscience and Bioengineering
SP  - 10
EP  - 15
PB  - Science Publishing Group
SN  - 2330-4162
UR  - https://doi.org/10.11648/j.abb.20160402.11
AB  - An experiment was conducted to evaluate genetic variability and association of characters of hermaphrodite papaya genotypes for further breeding improvement. Sixteen hermaphrodite papaya genotypes were evaluated at Melkassa Agricultural Research Centre in a randomized complete block design experiment with two replicates from 2011 to 2013. Based on the analysis, the genotypes showed variation in their performances. High heritability coupled with high genetic advance recorded for fruit weight (94, 44.75) followed by inter-node length (86, 37.3), fruit length (94, 29.25), and total number of fruit per plant (75, 30.94). Yield per plant exhibited highly significant positive correlation with inter-node length (0.7, 0.58), fruit length (0.49, 0.46) and fruit diameter (0.41, 0.44) both genotypic and phenotypic levels respectively. Based on path coefficient analysis, number of fruits per plant had the highest direct effect (1.05) on fruit yield per plant followed by fruit length (0.56), fruit diameter (0.49) and fruit weight (0.45). The overall results of this study indicated number of fruits, fruit length, fruit diameter, fruit weight and inter-node length exhibited high variation, heritability and genetic advance, and positive direct path coefficient effect on fruit yield per plant. Hence, these traits can be used as principal selection criteria for papaya fruit yield improvement.
VL  - 4
IS  - 2
ER  -

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