DOI: 10.36347/sajb.2018.v06i04.002

Pages: 303-311

The present study was conducted during a seven-year period at the Setif ITGC experimental site. The aim was to identify the climatic factors to which yield and yield components of MBB, Waha and Bousselam durum wheat varieties showed sensitivity. The results indicated that grain yield of the studied varieties was differentially affected by climate factors. MBB expressed sensitivity to cold, Waha to heat and Bousselam to drought stresses. These differences in response to abiotic stresses explain yield instability due to the presence of the genotype x environments interaction. These findings suggested the complexity of the sources of yield variation experienced by wheat grown on the eastern high plateaus of Algeria.