Current Science · 2003 · 120 citations · 0 references
AgricultureAgronomyPlant SciencesCrop ProtectionPlant-microbe InteractionsSeed BiotechnologyPhosphate-solubilizing MicroorganismsPlant Growth-promoting MicroorganismsPlant Growth-promoting RhizobacteriaRhizosphere BiologyRhizosphere MicrobiologyAntagonistic InteractionsBacterial Phosphate-solubilizing MicroorganismsCrop Growth PromotionInorganic Phosphate SolubilizationMineral Phosphate SolubilizationPhosphate Solubilization AssaysRhizobial Seed InoculantsRhizobial Symbiosis
Among ten strains of Bradyrhizobium (Arachis) sp. in peanut, only three produced siderophore and IAA, and exhibited phosphate solubilization in vitro. Bradyrhizobium strains AHR-2 a m P + , AHR-5 a m P + and AHR-6 a m p + showed antagonistic activity against Macrophomina phaseolina. Peanut seeds coated with Bradyrhizobium strains were significant by enhanced seed germination, seedling biomass, nodule number, nodule fresh weight, average nodule weight compared to uninoculated and uninfected controls. These findings confirm the antagonistic as well as plant growth-promotory properties of Bradyrhizobium strains.