Efficacy of different Rhizobium strains of forest trees species on Albizia lebbek.
The effects of pure cultures of Rhizobium strains from the nodules of different forest tree species (Dalbergia sissoo, Leucaena leucocephala, Pongamia pinnata and Albizia lebbek [A. lebbeck]) were tested on the growth of A. lebbeck seedlings in the nursery. Seeds were scarified and inoculated before planting in polybags in soil/manure/sand (2:1:1). One seedling per bag was maintained, and plants were watered daily and grown for 3 months before uprooting and measuring. Shoot length and girth, fresh and dry weight and nitrogen content of seedlings, and number of nodules were all greater in inoculated seedlings than in non-inoculated controls, but inoculation with the Rhizobium strain from Albizia lebbek was more effective than with Rhizobium strains from the other legume species.