Synergistic Effect of Azospirillum and Psb Inoculation on Growth and Yield of Foxtail Millet
Studies were conducted to know the effect of inoculation of Azospirillum sp. and phosphatesolubilizing bacteria (PSB) on the yield of foxtail millet [Setaria italica (L.) Beauv] (cv. Lepakshi) during Kharif and Rabi seasons, grown in Black soil of sandy loam type in earthen pots by the selected isolates of Azospirillum A1 (45 C2) and A2 (45 L1) and one isolate of PSB (45 LR3). Pots were inoculated separately with Azospirillum A1 alone, PSB alone, Azospirillum A1 and PSB in combination. The same was also repeated with A2 isolate. Pots which received heat killed inoculum served as control. Triplicates were maintained for each treatment. Inoculation of foxtail millet (cv. Lepakshi) with two strains of Azospirillum sp. and one strain of a Phosphate Solubilizing Bacterium (PSB) individually and in combination significantly increased plant height, dry weight of shoot and root over control plants. Yield increased due to inoculation with Azospirillum and PSB in combination. Dual inoculation with Azospirillum and PSB improved the yield.