The effect of varying concentrations of crude oil pollution on the germination and growth parameters of Mucuna pruriens (Var. cochinchinenesis) was investigated. The following treatments were used; 0ml, 100ml, 200ml, 400ml, 800ml 1600ml respectively. The germination of velvet bean was 100%, but growth was inhibited by a wide range of treatments (800ml and 1600ml). The lag phase of proceeding growth is also reduced at this treatment. Growth inhibition is attributed primarily to the characteristics of oil, which acts as a physical barrier to water and oxygen uptake. It was observed that the plants with the polluted treatments had reduced development and growth as against the non–polluted treatment (control) due to the toxic consequence of the crude oil on the geomorphological parameters (Number of leaves, leaf area, and plant height) tested for Velvet beans treated with lower treatment (100ml and 200ml) were observed to be more productive when compared to the control experiment. Consequently, as the crude oil exceeds the plant absorbing capacity at 800ml and 1600ml, respectively, the growth retards, chlorosis, presence of tough apical meristem, and defoliation from the base of the plant.
