Greener Journal of Plant Breeding and Crop Science

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Greener Journal of Plant Breeding and Crop Science

Vol. 8(1), pp. 06-12, 2020

ISSN: 2354-2292

Copyright ©2020, the copyright of this article is retained by the author(s)








Genetic variability of yield and yield related traits in bread wheat (Triticum aestivum. L) Genotypes under high temperature condition



Tadiyos Bayisa Serbesa1*; Mihratu Amanuel Kitil2



1 Tadiyos Bayisa Serbesa (Associate Researcher), Ethiopian Institute of Agricultural Research, Werer Agricultural Research Center, Werer, Ethiopia. Phone: +251913911673

2 Mihratu Amanuel Kitil (Researcher-I), Ethiopian Institute of Agricultural Research, Werer Agricultural Research Center, Werer, Ethiopia. E-mail:; Phone: +251911005935






Article No.: 110319181

Type: Research



Information on the extent and pattern of genetic variability of bread wheat genotypes under high temperature stress condition is limited. The present study was conducted with the objective of assessing the presence of genetic variability in 36 bread wheat genotypes under high temperature stress condition for yield and yield related traits. The genotypes were evaluated using Triple Lattice Design with three replications at Werer agricultural research center, Afar region in 2017.  The data generated from the experiment were subjected to analysis of variance and genetic analyses. The analysis of variances of bread wheat genotypes evaluated for 11 traits revealed highly significant difference between the genotypes for most traits except days to emergence. Genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) values were high for grain yield/ha, biomass yield/ha and harvest index. Also, moderate values for both GCV and PCV were obtained for traits. The magnitude of PCV values higher than GCV which indicates the degree of influence of environment over genotypic effect. The value of heritability in broad sense ranged from 66.72% for Number of kernel per spike to 97.79 for days to heading while genetic advance as percent of mean was ranged from 16.07(number of spikelet per spike) to 41.20 yield kg/ha. High heritability accompanied with high genetic advance as percent of the mean was recorded for days to heading, plant height, spike length, biomass, thousand kernel weights and harvest index which revealed traits was simply inherited.  Hence, from the current results it has been observed adequate existence of variability for most of the traits in the studied genotypes and these genotypes could be exploited in future bread wheat breeding for high temperature stress condition.


Accepted:  19/11/2019

Published: 07/05/2020


*Corresponding Author

Tadiyos Bayisa Serbesa

E-mail: bayisatadiyos@

Phone: +251913911673



Bread wheat; Genetic Advance; Heritability; Variability




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Cite this Article: Tadiyos BS; Mihratu AK (2020). Genetic variability of yield and yield related traits in bread wheat (Triticum aestivum. L) Genotypes under high temperature condition. Greener Journal of Plant Breeding and Crop Science, 8(1): 06-12.



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