Etude de la variabilité phénotypique de la génération F7 du blé dur (Triticum durum Desf.) en zone semi-arides

Apply

Etude de la variabilité phénotypique de la génération F7 du blé dur (Triticum durum Desf.) en zone semi-arides

Journal Title: Agriculture - Year 2017, Vol 8, Issue 2

Abstract

Durum wheat cultivation in Algeria is confronted with various biotic and abiotic constraints, which make the grain yield very ineffective as a selection criterion due to its low heritability and high genotype x location interactions. The analytical approach suggests the use of the yield-related traits that confer adaptation to the environmental variation. The results of this contribution indicate an appreciable variability noted within the crosses studied for all the variables measured and analyzed. Two lines were selected on the basis of six characters and a third line was identified based on the whole measured traits. These lines combined the best characteristics for adaptation and productivity. Correlation analysis suggested that spikes weight is the most determining factor of grain yield. However, it was strongly influenced by plant height. Thus, the best approach in terms of selection requires fixing this trait in the plant material evaluated and proceeding then to screen it on the basis of spikes weight.

Authors and Affiliations

A OULMI, Z Fellahi, N Semcheddine

Keywords

EP ID EP290855
DOI -
Views 54
Downloads 0