Effect of mycorrhiza fungi on ecophysiological characteristics of barley cultivars in response to inoculation with different strains of Pseudomonas fluorescence under rain fed conditions

In order to evaluate the effect of mycorrhiza fungi on ecophysiological characteristics of barley cultivars in response to inoculation with different strains of Pseudomonas fluorescence under rain fed conditions, this factorial experiment in randomized complete blocks design was conducted at Ardebil Islamic Azad University research farm. Experimental factors consisted of mycorrhiza fungi Glomus mosseae species (non-inoculated and inoculated), Pseudomonas fluorescence bacteria srains (four stains of Pseudomonas fluorescence bacteria S153, S169, S4, S8, and non-inoculated) and barley cultivars (Dasht and Sahra cultivars). In both cultivars the highest seed yield was obtained from application of mycorrhiza and strain S169 treatment (in Dasht cultivar with an average 1293 and in Sahra cultivar with an average 1752 kilogram per hectare). Also, in physiological traits, the highest amount of chlorophyll a was obtained from application of mycorrhiza fungi treatment and non-inoculated with bacteria in Sahra cultivar and chlorophyll b, total chlorophyll and soluble sugar was obtained from application of mycorrhiza fungi treatment and inoculation with Pseudomonas bacteria strain S153, in Sahra cultivar. The greatest amount of phosphorous grain was observed in mycorrhiza application treatment and inoculation with strain S153 in Dasht cultivar, while the most amount of grain nitrogen was obtained from treatment application of mycorrhiza fungi and inoculation with bacteria S4 strain in Sahra cultivar. Although, the strains used in this study had a different reaction to cultivar and application of mycorrhiza, but most of the measured traits were superior, compared to non-inoculated treatment with bacteria.