These result indicated that bana grass was a cd accumulator while vetiver grass was a cd exclude The ratio of root to shoot biomass was significantly increased in vetiver grass , while it was unchanged in bana grass by cd pollution.This suggests that exclude may allocate more energy to roots than shoots under cd pollution compared to un-contaminated condition. While accumulator may allocate equal proportions of energy to roots and shoots. For bana grass,soil Cd pollution significantly decreased the concentration of Fe and Mn in roots as well as the translocation factors of Zn and k. For vetiver grass ,soil Cd pollution signifcantly decreased the concentration of Fe in roots and had no influence on the translocation factor of Fe,Mn and Ca.Soil Cd pollution showed no significant effect on chlorophyll content and photosynthesic rates in either of the grasses. The water content and leaf transpiration rate were significantly increased by Cd pollution in bana grass. While they were unchanged in vetiver grass. The results indicated that the energy allocation and mineral nutrition characteristics may aid in screening suitable plant species for photoremediation