Growth and yield responses of wheat cultivars to inoculation with N2-fixing bacteria under field conditions

In a field trial on clay loam soil, seeds of wheat cv. NI 747-19, NI 5439 and NI 5643 and Triticum durum cv. HD 2189, CC 464, UP 215, Malvika and Sonalika were inoculated with Azotobacter chroococcum and Azospirillum brasilense. Inoculation increased the number of fertile tillers/plant, plant DW, grain yield and N content of grain, straw and soil at harvest. Grain yield with no inoculation, A. chroococcum and A. brasilense was 3.32, 3.85 and 4.04 t/ha, respectively. Of the parameters measured there were no differences between different cultivar