Root colonization and growth promotion of winter wheat and pea by Cellulomonas spp. at different temperatures

Plant-growth-promoting bacteria isolated from the rhizosphere and phyllosphere were analysed for their colonization and growth-promoting effects on winter wheat and pea at different temperatures. The investigations were carried out in pot experiments using loamy sand in Germany. The colonization of strains Cellulomonas sp. 21/2 and Cellulomonas sp. 43 in the rhizosphere of winter wheat and pea were much better at 16 degreesC than that at 26 degreesC. The inoculation with effective bacterial strains significantly increased the root and shoot growth of winter wheat and pea at 16 more than at 26 degreesC. Bacterial inoculation also resulted in significantly higher amount of N, P, and K contents of plant components.