Zine El Abidine Fellahi, Abderrahmane Hannachi, Hamenna Bouzerzour and Abdelkader Benbelkacem

DOI: 10.14456/sjst-psu.2016.12

pp. 91 - 97

Abstract

Nine bread wheat genotypes were crossed under a partial diallel scheme, in which group 1 counted five lines and
group 2 four lines. The 20 F₁
’s and their parents were evaluated in randomized complete block design with three replications at
the Field Crop Institute-Agricultural Experimental Station of Setif (Algeria) during the 2011/2012 cropping season. The results
showed that the components associated with additive effects were more relevant than those associated with the dominance
effects for these traits. Based on the K_D
/K_R
 ratio, the dominant alleles are present in greater frequency in the first group of
parents, while the opposite is true for the second group. Values of the gene proportion with positive and negative effects in
the parents revealed an unequal distribution of dominant genes in the parents for almost all the traits except for number of
grain per spike in the second group which showed an equal distribution.

Keywords

• Triticum aestivum L.
• selection
• partial diallel
• genetic parameters
• heritability