Tadesse Ghiday*, Wassu Mohamed, Yemane Tsehaye, Adugna Wakjira, Chemeda Daba and Tesfaye Disasa

Highland Oil Crops Research, Ethiopian Institute of Agricultural Research (EIAR), Ethiopia

*Corresponding Author: Tadesse Ghiday, Highland Oil Crops Research, Ethiopian Institute of Agricultural Research (EIAR), Ethiopia.

Received: February 08, 2024; Published: March 14, 2024

Abstract

Comprehensive information on genetic variability and selection parameters is very crucial to design breeding strategies. However, very limited information is available in Ethiopian linseed germplasm. Therefore, the present study was conducted to estimate genetic variability, broad sense heritability and genetic advance; and determine selection for 19 quantitative traits using 126 genotypes (120 Ethiopian linseed accessions and six released varieties). The analysis of variance showed highly significant (P < 0.01) differences for all of the traits demonstrating the presence of high genetic diversity among the studied linseed genotypes. Higher differences between PCV and GCV estimates were observed for seed yield per plant and biological yield per plant, signifying the importance of environmental factors influence. High heritability coupled with high genetic advance was observed for seed yield per plant and biological yield per plant, indicating that this high heritability is due to additive gene effects and therefore, selection can be effective for the improvement of linseed for these traits. In addition, moderate heritability coupled with moderate genetic advance was recorded for oil yield per hectare, number of capsules, number of secondary branches, days to maturity, seed yield per hectare and plant height. These results indicated the existence of intermediate expression in these traits for both additive and dominance gene effect. In the present study, high heritability coupled with high GAM was observed for seed yield per plant and biological yield per plant, indicating greater contribution of additive gene action for the expression of these traits; and therefore, improvement can be achieved through selection in these traits.

Keywords: Additive Effect; Coefficient of Variation; Genetic Advance

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Citation

Citation: Tadesse Ghiday., et al. “Genetic Variability and Heritability of Morpho-Agronomic Traits, Oil Yield and Fatty Acid Components in Linseed (Linum usitatissimum L.) Germplasm in Ethiopia".Acta Scientific Biotechnology 5.2 (2024): 03-17.

Copyright

Copyright: © 2024 Tadesse Ghiday., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.