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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 3
First page : (24) Last page : (36)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8082

Genotypic and Phenotypic Correlation and Path Coefficient Analysis for Yield and Yield Related Traits in Barley (Hordeum vulgare L.) Landraces in North Gondar, Ethiopia

Endalkachew Aklilu^1* , Tigest Dejene² and Fissaha Worede^3
1Gondar Agricultural Research Center, Gondar, Ethiopia, P.O. Box 1337
²Bahir Dar University, Bahir Dar, Ethiopia, P.O. Box 79
³Ethiopian Institute of Agricultural Research, (FRRTC), Addis Ababa, Ethiopia
*Corresponding Author E-mail: endalkaklilu12@gmail.com
Received: 23.04.2020  |  Revised: 28.05.2020   |  Accepted: 5.06.2020 

 ABSTRACT

Landraces are the major genetic sources of cultivated barley in Ethiopia hence, genetic variability study in barley accession is a major source of information for barley genetic improvement program of the country. Thus, this study was initiated with the objective to assess the extent and pattern of genetic variability in Ethiopian barley accessions. Eighty-one barley accessions were evaluated for 11 morpho-agronomic traits using 9x9 simple lattice design at Debark Agricultural Research Station in 2018 main season. Analysis of variance revealed highly significant (P<0.05) difference among accessions for all traits studied which indicated the existence of genetic variability which can be exploited in breeding. The phenotypic and genotypic correlation was positive and highly significant for grain yield with plant height, number of seeds per spike, biological yield and harvest index. Path coefficient analysis revealed maximum positive direct effect of biological yield on grain yield followed by harvest index, showing that these traits can be used for selection to improve the grain yield. In contrast, days to maturity and plant height had negative direct effects on grain yield. The study generally indicated the existence of substantial genetic variability among accessions. Thus, there is appreciable opportunity to use the existing accessions for direct selection to improve specific traits.

Keywords: Genetic variability, Hordeum vulgare, Path coefficient analysis, Phenotypic correlation, Genotypic correlation, Path coefficient, Traits

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Aklilu, E., Dejene, T., & Worede, F. (2020). Genotypic and Phenotypic Correlation and Path Coefficient Analysis for Yield and Yield Related Traits in Barley (Hordeum vulgare L.) Landraces in North Gondar, Ethiopia, Ind. J. Pure App. Biosci. 8(3), 24-36. doi: http://dx.doi.org/10.18782/2582-2845.8082