Author/Authors :
Guendouz ، A نويسنده National institute of the agronomic research Of Algeria, Unit of Research, Setif (INRAA), , , Hafsi ، M نويسنده University Ferhat ABBAS, Department of Agronomy, Setif, Algeria , , Khebbat، Z نويسنده University Ferhat ABBAS, Department of Agronomy, Setif, Algeria , , Moumeni، L نويسنده National institute of the agronomic research Of Algeria, Unit of Research, Setif (INRAA), Algeria , , Achiri ، A نويسنده National institute of the agronomic research Of Algeria, Unit of Research, Setif (INRAA), Algeria ,
Abstract :
This study was conducted on the experimental site of station INRAA in Setif, Algeria. This study was conducted to determine the effect of chlorophyll content (SPAD), Grain yield and 1000 kernels weight on durum wheat and to explore a new and cheap method of indirect selection for improving drought tolerance in wheat. Ten durum wheat (Triticum durum Desf.) were chosen for study based on their reputed differences in yield performance under semi-arid conditions. In field condition and during all cropping seasons the genotype effect was significant for grain yield and thousand-kernel weight, just exception for grain yield during second crop season (2011-2012). The chlorophyll content ranged from 60.70 SPAD unit to 41.63 SPAD unit during all cropping seasons. The best chlorophyll content registered during first cropping season (2010-2011) with an average of 56.36 SPAD unit. Cluster analysis was used for arranging genotypes into different clusters to find the clusters that their cases within are more similar and correlated to one another comparing to other clusters. In a linkage distance of 7, the examined ten genotypes could be separated into three clusters. The genotypes of the second cluster (Kucuk, Waha, Hoggar, Altar and Mexicali) have the higher values of grain yield, 1000 kernels weight and chlorophyll content than the mean of all genotypes and during all cropping seasons and represent 50 % of total genotypes.
