Keywords
4-tert Octylphenol
Endocrine Disrupting Chemicals
Jute Mallow
Vegetative Performance
How to Cite
Abstract
In recent years, the presence of emerging pollutants, especially in the aquatic environments, has drawn the attention of environmental experts. Many of the priority pollutants are from Endocrine disrupting chemicals (EDCs). AlkylPhenols (APs) fall in the EDCs group and have estrogenic effects. 4-tert Octylphenol (4-t-OP) is one of the most important and widely used Alkylphenolic compounds. This study therefore evaluated the effect of different concentrations of 4-tert Octylphenol on seedling performance of Jute Mallow (Corchorus olitorius). The experiment was carried out at the screen house of Ladoke Akintola University of Technology (LAUTECH), Ogbomosho, Oyo State, Nigeria. Six treatment combinations (V4-t-OPkg/Vsandkg), 1x10-4, 5x10-5, 4x10-5, 3x10-5, 2x10-5 and control were used, each replicated three times. These combinations were fitted in a Completely Randomized Design and means separated through the use of Duncan Multiple Range Test. Parameters such as plant height, germination rate, plant girth, number of leaves and leaf area were measured to determine the effect of 4-tert Octylphenol on Jute Mallow (Corchorus olitorius). Results showed that higher concentration of 4-tert Octylphenol (at 1x10-4 kg) has a negative effect on germination rate by suppressing the germinability of Jute Mallow seeds for the first day thereby having no germination (0.00). Also, negative effect was observed with higher concentrations of 4-tert Octylphenol (at 1x10-4 kg and 5x10-5 kg) on the height at week 9 and 11 having (29.91 and 40.31) respectively, on number of leaves at week 9 having (21.44) and on leaf area at week 5, 7 and 9 having (9.19, 20.12 and 25.74) respectively. The result of the negative effect was found to be retardation in growth of Jute Mallow vegetatively while no significant effect was observed on the girth. Conclusively, 4-tert Octylphenol could be said to encourage environmental pollution as the product is used in the manufacture of toothpaste, some personal care products and detergents. It is therefore recommended that while in use, 4-tert Octylphenol should be consciously handled and its effluent thereof should be disposed off carefully.
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