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ABSTRACT This study evaluated the role Pentaclethra macrophylla plays in the bioremediation of crude oil-contaminated soil in a controlled environment. Viable seeds P. macrophylla were planted in plant bags containing 3000 of clay-loamy soil to which varying amounts (0, 25, 50, 75 and 100 ml) of crude oil were added. Plant growth parameters (plant heights, girths, number of leaves, nodulation and...