Abstract
An experiment was conducted to study the role of inoculation with Rhizobium leguminosarum and soil salinity levels (4, 6, 8 or dsm−1). Their interrelationship with the chlorophyll content and the weight and number of root nodes of the Vicia Faba L. plant. Rhizobium leguminosarum bacteria were isolated from soil grown in the previous season with Rhizobium with salts 4, Rhizobium with salts 6, Rhizobium with salts 8, and Without fertilization. The experiment results showed that the isolates were superior to the rhizobia isolates, it showed also that RS1 isolates were superior to RS2 and RS3 in most studied traits, with the highest rate of root nodules (22.33 node. Plant−1) and the dry weight of root nodules (157.53 mg.plant−1) salinity levels were significantly higher than the lowest level of S1 salinity. The results showed that the levels of 4dsm−1 at high levels (6 and 8 ds.m−1) were higher than those of chlorophyll content, number of root nodes, The chlorophyll content (20.32 mg.gm−1 fresh weight), While the number of root nodules and the dry weight of the root nodule (22.50 nodules.Plant−1 and 159.06 mg.plant−1). The interaction between Rhizobium leguminosarum and 4ds.m−1 salinity was higher in all studied traits. Interference between isolation R and S1 was highest in dry weight of root nodule, number of root nodules and chlorophyll content (184.30 mg.plant−1, 27.00 node. Plant−1, 22.15 mg.gm−1) respectively.
