Abstract :
From initial agriculture activities, always drought has been an important factor, causing famine and fatality. To survey the changes in morphological traits, leaf and soil RWC and length of growth and development stages of four cultivars of barley in restricted irrigation, an experiment was conducted as a split plot arrangement based on randomized complete block design with 4 replications at experimental agriculture farm of Islamic Azad University, Khorasgan (Esfagan) branch, in Esfahan. Irrigation treatments as a main plot were arranged on the basis of evaporation from pan evaporation (including irrigation after 80, 100 and 120 mm evaporation from pan), and sub plots were included 4 cultivars (Fasih, Nosrat, Reihan 03 and Yosef). The irrigation was done normally from plantation until the beginning of reproductive stage. Irrigation had significant effect on total number of tiller pet plant, plant height, ear length, peduncle length, RWC of leaf, RWC of soil, the number of days from germination to stem elongation, from germination to anthesis stage, from germination to flowering stage and from germination to physiological ripening. Cultivar had significant effect on plant height, ear length, RWC of soil, the number of days from germination to stem elongation, anthesis, flowering stage and physiological ripening. Irrigation and cultivar interaction just has significant influence on plant height. Irrigation on the basis of 80 mm evaporation from evaporation pan had obtained the maximum total number of tiller per plant, plant height, ear length, peduncle length, RWC of leaf and soil and the highest number of days from germination to stem elongation, anthesis stage, flowering stage and physiological ripening. The maximum total number of tiller per plant, plant height, ear length was related to Nosrat. Faish cultivar obtained the maximum RWC of soil, the number of days from germination to stem elongation, anthesis stage, flowering stage and physiological stage. The highest RWC of leaf was related to Yosef, but its differences with all other cultivars were not significant.
