Abstract :
The research was carried out at Agriculture College, Pardis Branch within 2008-2009 growing season. The thirty genotypes applied in this experiment were received from Rain-fed Research Sub-Institute of Sararood, Kermanshah. The genotypes were assessed using a completely randomized block design with three replications. The results of variances simple analysis indicated the difference between the genotypes in their reaction to drought, in their grain yield, as well as all their under-investigation physiological traits. The mean comparison of the interactive effects was carried out with regard to the meaningful interaction between the genotypes and environment for all under-investigation traits in the variances combined analysis. According to this comparison there was the discrepancy of the various traits between the genotypes in the two separate environments. The results indicated that the pioneer genotype, which produced the maximum yield in normal conditions, had the largest phonological trait of the seed filling period; however genotype 17 that bears the largest quantity of days to spike germination, days to flowering and days to spiking but bears the shortest period of the seed filling, produced 5.81 and 3.39 tons per ha of grain yield. Charmin genotype that needs the least number of days to physiological maturation and relatively long period of seed filling had the maximum yield in stress conditions. Based on the cluster znalysis carried out according to Ward Method and square Euclidean Disatance, the investigated genotypes were grouped in three separate clusters. This classification was confirmed by the analysis of Diagnosis Function.
