Effect of salinity stress and genetical parameterers estimation of some burley (Hordeum Vulgare L.) Cultivars lines in seed germination and seedling primary growth stage

Increased salt tolerance is essential need for sustainable barley production in areas with risk of salinisation. This requires new genetic sources of salt tolerance, and more efficient techniques for identifying salt-tolerant germplasms. This study, conduct to access salt tolerance in primary growth stage of eight barley cultivars and find the most beneficial salt tolerance traits in this stage. The cultivars were studied at Non-Stress (Normal) and salinity stress (24 dS/m) condition with four replication. Results of ANOVA showed significant differences among cultivars and condition for most traits, which demonstrates high diversity among combinations that enabled us to screen salinity tolerant cultivar. Estimation of coefficient of genotypic variation (GCV) showed less than estimate of coefficient phenotypic variation (PCV) under salinity stress condition for most traits. Also germination prcentage under salinity stress condition had high GCV and h2and suggested that there is high importance of additive gene action for seed vigority. So using these traits as selection index can be effective. Cluster analysis with Wardandrsquo;s method for both condition classified hybrids into three different groups. According to the results of this research, genotypes Salt Toleranc,EB-81-15,NomarandNimrozidentified as tolerant lines cultivars to salinity at germination stage and early seedling growth.