Degife Et Al


Degife et al

Greener Journal of
Agricultural Sciences

Vol. 9(4),
pp. 382-395, 2019


©2019, the copyright of this article is retained by the author(s)

DOI Link:






Variability Analysis of Agro-Morphological Traits among Bread Wheat (Triticum aestivum L.) Genotypes at Raya
Valley of Southern Tigray, Ethiopia



Degife*; 2Wassu Mohammed; 3Kebebew Assefa



1 Ethiopian Institute of Agricultural
Research, Mehoni Agricultural Research Centre, P.O. Box 47, Mehoni, Ethiopia

2Haramaya University, P.O. Box 138, Haramaya,

3 Ethiopian Institute of Agricultural
Research, Debre-Zeit Agricultural Research Centre, Debre-Zeit, Ethiopia





Article No.: 090219165

Type: Research

DOI: 10.15580/GJAS.2019.4.090219165



Assessment of genetic
variability in crop species is one of the major activities of plant breeding
which helps to design breeding methods and/or selection of genotypes for
further evaluation to meet the diversified goals. Therefore, this field
experiment was conducted to assess the genetic variability in bread wheat
genotypes. The field evaluation of 32 genotypes and 4 released varieties was
conducted in 6 x 6 Triple Lattice Design at Mehoni Agricultural Research
Station in 2017 cropping season. Results of analysis of variance revealed
the presence of significant differences among genotypes for 12 quantitative
traits. The variation observed among genotypes for grain yield ranged from
2.80 to 5.33 t ha-1. The four genotypes (QAFZAH-2/FERRIUG-2,
yield advantage of 7.58 to 12.21% over the high yielding check variety,
GAMBO (4.75 t ha-1). Phenotypic (PCV) and genotypic (GCV) coefficient of
variations ranged from 5.67 (plant height) to 14.74 (fertile tiller per
plot) and 7.06 (days to maturity) to 19.08% (fertile tiller per plot),
respectively. Heritability (H2) in broad sense and genetic advance as
percent of mean (GAM) ranged between 41.46 (biomass yield) and 89.08 (days
to heading) and 8.56 (plant height) and 24.09% (harvest index),
respectively. High H2 estimates coupled with moderate or high GAM for plant
height, days to heading, days to maturity, spike length, grain yield,
spikelets per spike and harvest index suggested the higher chance of
improving these traits through selection of genotypes for high mean


Submitted: 02/09/2019

Accepted:  22/09/2019

Published: 01/11/2019


*Corresponding Author


E-mail: girmadegife12@



Heritability; Genotypic Coefficient of Variations; Genetic Advance



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Cite this Article: Degife
G; Mohammed W; Assefa k (2019). Genetic Variability Analysis of
Agro-Morphological Traits among Bread Wheat (Triticum aestivum L.) Genotypes at Raya Valley of Southern
Tigray, Ethiopia. Greener Journal of
Agricultural Sciences
9(4): 382-395,


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