Investigation and a deeper comprehension of the genetic variability, heritability, and genetic advance are necessary for breeding program for crop improvement. This study was conducted at Haromaya, in Eastern Ethiopia, to estimate the magnitude of genetic variability, heritability, and genetic advance for sixteen released varieties and two local cultivars of potatoes. The experiment was set up using a randomized complete block design with three replications. Fifteen yield and yield component characteristics data were collected. The analysis of variance was carried out, and the estimation of variance components, heritability in a broad sense, and genetic advance were conducted. The mean squares due to genotypes were highly significant (P<0.0) for all the characters examined, demonstrating the presence of considerable variability in tested varieties and local cultivars for economically important traits. In this study, genotypic variance values ranged from 0.45 for total soluble solid to 296.88 for average tuber weight, while phenotypic variance values ranged from 0.48 for total soluble solid to 299.59 for average tuber weight. The GCV values ranged from 6.17% for dry matter content to 41.42% for large tuber number, while, the PCV values ranged from 6.36% for sphericity of the tuber to 41.48 % for large tuber number. Estimates of heritability in a broad sense ranged from 71.95 for dry matter content to 99.87 for large tuber number, whereas genetic advance as a percentage of mean ranged from 99.87% for large tuber number to 71.95% for dry matter content. According to the study results, a high range of variability for most of the investigated traits was observed, indicating an ample chance of selecting the best genotypes to improve crop productivity through selection. In the present study, high heritability coupled with high-expected genetic advance as a percentage of mean was recorded for large tuber number, average tuber weight, small tuber number, large tuber weight, medium tuber weight, marketable tuber yield, and total tuber yield, and those characters could be used as good criteria for selection in the potato improvement program.
Published in | World Journal of Agricultural Science and Technology (Volume 1, Issue 3) |
DOI | 10.11648/j.wjast.20230103.11 |
Page(s) | 38-44 |
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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. |
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Copyright © The Author(s), 2023. Published by Science Publishing Group |
Potato, Genotypic Coefficient, Phenotypic Coefficient, Variance, Broad Sense Heritability, Genetic Advance, Selection
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APA Style
Habtamu Gebreselassie. (2023). Estimation of Variability, Heritability, and Genetic Advance Among Released Varieties and Local Cultivar of Potato (Solanum tuberosum L.) in Eastern Ethiopia. World Journal of Agricultural Science and Technology, 1(3), 38-44. https://doi.org/10.11648/j.wjast.20230103.11
ACS Style
Habtamu Gebreselassie. Estimation of Variability, Heritability, and Genetic Advance Among Released Varieties and Local Cultivar of Potato (Solanum tuberosum L.) in Eastern Ethiopia. World J. Agric. Sci. Technol. 2023, 1(3), 38-44. doi: 10.11648/j.wjast.20230103.11
AMA Style
Habtamu Gebreselassie. Estimation of Variability, Heritability, and Genetic Advance Among Released Varieties and Local Cultivar of Potato (Solanum tuberosum L.) in Eastern Ethiopia. World J Agric Sci Technol. 2023;1(3):38-44. doi: 10.11648/j.wjast.20230103.11
@article{10.11648/j.wjast.20230103.11, author = {Habtamu Gebreselassie}, title = {Estimation of Variability, Heritability, and Genetic Advance Among Released Varieties and Local Cultivar of Potato (Solanum tuberosum L.) in Eastern Ethiopia}, journal = {World Journal of Agricultural Science and Technology}, volume = {1}, number = {3}, pages = {38-44}, doi = {10.11648/j.wjast.20230103.11}, url = {https://doi.org/10.11648/j.wjast.20230103.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjast.20230103.11}, abstract = {Investigation and a deeper comprehension of the genetic variability, heritability, and genetic advance are necessary for breeding program for crop improvement. This study was conducted at Haromaya, in Eastern Ethiopia, to estimate the magnitude of genetic variability, heritability, and genetic advance for sixteen released varieties and two local cultivars of potatoes. The experiment was set up using a randomized complete block design with three replications. Fifteen yield and yield component characteristics data were collected. The analysis of variance was carried out, and the estimation of variance components, heritability in a broad sense, and genetic advance were conducted. The mean squares due to genotypes were highly significant (P<0.0) for all the characters examined, demonstrating the presence of considerable variability in tested varieties and local cultivars for economically important traits. In this study, genotypic variance values ranged from 0.45 for total soluble solid to 296.88 for average tuber weight, while phenotypic variance values ranged from 0.48 for total soluble solid to 299.59 for average tuber weight. The GCV values ranged from 6.17% for dry matter content to 41.42% for large tuber number, while, the PCV values ranged from 6.36% for sphericity of the tuber to 41.48 % for large tuber number. Estimates of heritability in a broad sense ranged from 71.95 for dry matter content to 99.87 for large tuber number, whereas genetic advance as a percentage of mean ranged from 99.87% for large tuber number to 71.95% for dry matter content. According to the study results, a high range of variability for most of the investigated traits was observed, indicating an ample chance of selecting the best genotypes to improve crop productivity through selection. In the present study, high heritability coupled with high-expected genetic advance as a percentage of mean was recorded for large tuber number, average tuber weight, small tuber number, large tuber weight, medium tuber weight, marketable tuber yield, and total tuber yield, and those characters could be used as good criteria for selection in the potato improvement program.}, year = {2023} }
TY - JOUR T1 - Estimation of Variability, Heritability, and Genetic Advance Among Released Varieties and Local Cultivar of Potato (Solanum tuberosum L.) in Eastern Ethiopia AU - Habtamu Gebreselassie Y1 - 2023/07/20 PY - 2023 N1 - https://doi.org/10.11648/j.wjast.20230103.11 DO - 10.11648/j.wjast.20230103.11 T2 - World Journal of Agricultural Science and Technology JF - World Journal of Agricultural Science and Technology JO - World Journal of Agricultural Science and Technology SP - 38 EP - 44 PB - Science Publishing Group SN - 2994-7332 UR - https://doi.org/10.11648/j.wjast.20230103.11 AB - Investigation and a deeper comprehension of the genetic variability, heritability, and genetic advance are necessary for breeding program for crop improvement. This study was conducted at Haromaya, in Eastern Ethiopia, to estimate the magnitude of genetic variability, heritability, and genetic advance for sixteen released varieties and two local cultivars of potatoes. The experiment was set up using a randomized complete block design with three replications. Fifteen yield and yield component characteristics data were collected. The analysis of variance was carried out, and the estimation of variance components, heritability in a broad sense, and genetic advance were conducted. The mean squares due to genotypes were highly significant (P<0.0) for all the characters examined, demonstrating the presence of considerable variability in tested varieties and local cultivars for economically important traits. In this study, genotypic variance values ranged from 0.45 for total soluble solid to 296.88 for average tuber weight, while phenotypic variance values ranged from 0.48 for total soluble solid to 299.59 for average tuber weight. The GCV values ranged from 6.17% for dry matter content to 41.42% for large tuber number, while, the PCV values ranged from 6.36% for sphericity of the tuber to 41.48 % for large tuber number. Estimates of heritability in a broad sense ranged from 71.95 for dry matter content to 99.87 for large tuber number, whereas genetic advance as a percentage of mean ranged from 99.87% for large tuber number to 71.95% for dry matter content. According to the study results, a high range of variability for most of the investigated traits was observed, indicating an ample chance of selecting the best genotypes to improve crop productivity through selection. In the present study, high heritability coupled with high-expected genetic advance as a percentage of mean was recorded for large tuber number, average tuber weight, small tuber number, large tuber weight, medium tuber weight, marketable tuber yield, and total tuber yield, and those characters could be used as good criteria for selection in the potato improvement program. VL - 1 IS - 3 ER -