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Abstract
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Article Information:
Effect of Soil Pollution on the Nodulation Competence of Some Cowpea Cultivars in the Tropical Rainforest Region of Nigeria
A.O. Awosanya, A. Sebiomo and J.I. Idiagi
Corresponding Author: Sebiomo Adewole
Submitted: February 10, 2012
Accepted: June 10, 2012
Published: June 30, 2012 |
Abstract:
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The aim of this study is to evaluate the effect of soil pollution on the nodulation competence of
some selected cowpea cultivars. Three cowpea varieties (Tvu1647, IT84552-249 and IT95K-1491) were
selected for this study. The polluted soil types were soil samples taken from a factory effluent site, piggery
waste soil, gasoline polluted soil while normal unpolluted sandy loam served as the control. The plant
height, terminal leaf length, sterm girth, nodule number and plant shoot dry mass were determined.
Nodulation in the polluted soils reduced significantly (p<0.001) compared to the control while the stem
girth, terminal leaf length and shoot dry mass increased significantly (p<0.001) compared to the control.
The plant height of each variety significantly differed (p<0.005) from one another. This study has shown
that soil pollution causes significant reduction in nodule numbers hence having immense negative impact
on nodulation in cowpea varieties used in this study. Meanwhile soil pollution is shown in this study to
increase the stem girth, plant height, leaf length and shoot dry mass of the cowpea plants compared to the
control.
Key words: Leaf length, nodulation, plant height, shoot dry mass, stem girth, ,
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Cite this Reference:
A.O. Awosanya, A. Sebiomo and J.I. Idiagi, . Effect of Soil Pollution on the Nodulation Competence of Some Cowpea Cultivars in the Tropical Rainforest Region of Nigeria. Research Journal of Environmental and Earth Sciences, (06): 612-616.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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