摘要：Heavy metals are potentially toxic to human life and the environment. In a greenhouse pot experiment,Typic Ustochrepts soil order (alluvial soil) with pH 5.7 was used. African marigold variety PusaNarangi was used as a test crop. The soil was artificially spiked with different cadmium (Cd) levels (0,5, 10, 25, 50 and 100 mg kg -1 ). Critical toxic concentrations of Cd resulting in 25 per cent reduction indry matter yield were established for African marigold grown in alluvial soil. The corresponding valuesfor non-inoculated, arbuscular mycorrhiza (Glomus moseae) and phosphorus solubilizing fungi(Aspergillus awamori) treated soils, respectively, were 28, 24 and 16 mg kg -1 Cd applied in soil; 12, 12and 8 mg kg -1 AB-DTPA extractable Cd in soil; 6.4, 6.2 and 6 mg kg -1 Cd content in plant tissues.
