| ARJASR |
Academic Research Journal of
Agricultural Science and Research |
|||||||||||||||||||
|
Vol. 7(2), pp. 57-62, March 2019 Full Length Research Genetic Variability for oil quality traits in Groundnut (Arachis hypogaea L.) cultivars
Zekeria Yusuf1, Habtamu Zeleke2, Wassu Mohammed2, Shimelis Hussein4, Arno Hugo5 1.Biology Department, Haramaya University, Dire Dawa, Ethiopia. 2 School of Plant Science, Haramaya University, Dire Dawa, Ethiopia. 3 Department of Crop Science, University of Kwazulu-Natal, Durban, Republic of South Africa. 4Department of Food Science, University of Free State, Bloemfontein, Republic of South Africa.
Accepted 27 February 2019
Assessment of genetic variability with the help of suitable genetic parameters such as genetic coefficient of variation, heritability estimates, and genetic advance are absolutely necessary to start an efficient breeding program. Sixteen groundnut genotypes were evaluated for quantitative parameters. The crop was sown during 2015 wet season across four locations in Ethiopia. The experiment was laid out in an RCBD with two replications. The results of combined analysis of variance has shown that high heritability with high expected genetic advance were observed for stearic acid, arachidic acid, eicosenoic acid, lignoceric acid and oleic to linoleic acid ratio indicating the predominant role of additive gene action and the possibilities of effective selection for the improvement of these traits. However, heritability for oil content was low showing that direct selection for oil content is difficult; the possible improvement of oil content should be indirect selection through highly heritable traits.
Key words: Oleic to linoleic acid ratio, Additive gene action, Oil content, Heritability, Genetic advance.
How to cite this article (APA Style): Zekeria, Y., Habtamu, Z., Wassu M., Shimelis H., Arno, H. (2019). Genetic Variability for oil quality traits in Groundnut (Arachis hypogaea L.) cultivars. Acad. Res. J. Agri. Sci. Res. 7(2): 57-62
|
|||||||||||||||||||
