-(Effectiveness of plant growth promoting rhizobacteria in facilitating lead and nutrient uptake by little seed canary grass). We investigated the effectiveness of Nitroxin inoculation on lead (Pb) and nutrient uptakes by little seed canary grass. The factors tested included inoculation (or not) with Nitroxin and different soil concentrations of Pb (0, 200, 400 and 800 mgPb kg -1 soil). Increasing soil concentrations of Pb decreased stem, leaf and root dry weights. Shoot phosphorus concentrations increased in parallel with increasing soil Pb concentrations. Nitroxin inoculation did not alter the phosphorus concentration of the roots. The Pb translocation factor was > 1 in inoculated treatments in the Pb soil concentration range of 200 to 400 mg kg -1 ; the translocation factor for 800 mgPb kg -1 with no inoculation of Nitroxin was, however, < 1. Our results indicated that the Pb bioaccumulation factor for little seed canary grass was < 1, indicating that it is a Pb excluding plant.

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