Abstract Detail



Ecology

Oyedeji, Ayodele [1], Kayode, Joshua [2].

Phytoremediation: Evaluation of germination and growth of Acacia auricuformis A. Cunn. ex Benth in crude oil-contaminated soil.

This study evaluated the potentials of Acacia auricuformis (a nitrogen fixing plant) for the remediation of crude oil contaminates soil. The experimental setup was carried out under control environment. The germination rate, heights and girths, number of leaves and nodulation was ascertain following standard procedure. Similarly some physicochemical (organic matter, pH, nitrogen, phosphorous, potassium, calcium, magnesium and sodium) characteristics of soil used were determined following standard protocol. Results revealed at varying concentration of crude oil i.e 0 ml, 25 ml, 50 ml, 75 ml and 100 ml showed that Acacia auricuformis  had 72%, 70%, 65%, 60% and 50% respectively (germination rate), 62.50cm, 58.40cm, 47.80cm, 43.50cm and 27.80cm respectively after 16 weeks after planting (WAP) (mean height), 0.55 mm, 0.38mm, 0.25mm, 0.25mm and 0.21mm respectively at16 WAP (mean girth), 12, 12, 9, 4 and 2 respectively (number of nodules) and 8.00, 8.00, 3.00, 3.00 and 1.00 respectively (number of leave). The soil physicochemical parameters i.e. organic matter, pH, nitrogen, phosphorous, potassium, calcium, magnesium and sodium were in the decreasing trend as the concentration of crude oil increased. Furthermore, as the concentration of crude oil increased the germination rate, height, girth and number of leaves and nodules decreased suggesting the effect of crude oil on Acacia auricuformis. The ability of the plant to withstand the varying concentration of the crude oil suggests that it’s a promising nitrogen fixing plant that could be used for the remediation of crude oil contaminated soil especially in the Niger Delta region of Nigeria.


1 - Niger Delta University, Department Of Biological Sciences, Main Campus, Wilberforce Island, Bayelsa State, 084, Nigeria
2 - Ekiti State University, Department of Plant Science and Biotechnology, Ado-Ekiti, Nigeria

Keywords:
Crude oil
Contamination
Remediation
Soil
Acacia auricuformis.

Presentation Type: Oral Paper
Number: 0002
Abstract ID:91
Candidate for Awards:None


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