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Research Journal of Soil Biology

Year: 2009 | Volume: 1 | Issue: 1 | Page No.: 15-19
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Authors

J. Kayode

O. Olowoyo

A. Oyedeji

Keywords

Research Article

The Effects of Used Engine Oil Pollution on the Growth and Early Seedling Performance of Vigna uniguiculata and Zea mays

J. Kayode, O. Olowoyo and A. Oyedeji
The ability of Vigna unguiculata and Zea mays to thrive in soils supplemented with varying concentrations of used engine oil ranging from 150-250 mL in a green house as well as extracts derived from these soils in Petri dishes in the laboratory was investigated. The parameters considered in the green house were heights and numbers of leaves while those of the laboratory were radicle and plumule lengths. In both species seedlings in the non-polluted soil grow better than those in the polluted soil sample samples. The growth inhibition in the seedlings increased with the increase in the concentration of the used oil pollutants. There were gross reductions in the number of leaves obtained in the seedlings of both V. unguiculata and Z. mays from the polluted soils. Treatments with extracts derived from used oil polluted soils resulted in the inhibitions of the radicle and plumule growths in both species at all the extract concentrations. It could be inferred from the results that used engine oils have inhibitory effects on the growth and early seedling performance of Vigna unguiculata and Zea mays.
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Tefo Modibedi Reply

what the area or the dimensions of planting pots used in this investigation/

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