Akinbuluma, Mobolade, Ewete, Francis, Yeye, Emmanuel (2017). Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize. , 6(1), 45-52. doi: 10.48311/jcp.2017.1324
Mobolade Akinbuluma; Francis Ewete; Emmanuel Yeye. "Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize". , 6, 1, 2017, 45-52. doi: 10.48311/jcp.2017.1324
Akinbuluma, Mobolade, Ewete, Francis, Yeye, Emmanuel (2017). 'Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize', , 6(1), pp. 45-52. doi: 10.48311/jcp.2017.1324
Akinbuluma, Mobolade, Ewete, Francis, Yeye, Emmanuel Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize. , 2017; 6(1): 45-52. doi: 10.48311/jcp.2017.1324

Phytochemical investigations of Piper guineense seed extract and their effects on Sitophilus zeamais (Coleoptera: Curculionidae) on stored maize

Journal of Crop Protection
Article 5, Volume 6, Issue 1, 2017, Pages 45-52    PDF (285.04 K)
DOI: 10.48311/jcp.2017.1324
Authors
Mobolade Akinbuluma* 1; Francis Ewete1; Emmanuel Yeye2
1Department of Crop Protection and Environmental Biology, University of Ibadan, Nigeria.
2Department of Chemistry, University of Ibadan, Nigeria.
Abstract
Three different solvents namely; hexane, ethyl acetate and ethanol were used in partitioning the extracts obtained from Piper guineense seeds and solvent extracts were investigated for the presence or absence of secondary metabolites. Extracts were further evaluated on adult maize weevils, Sitophilus zeamais. Experiment was carried out under laboratory conditions at 27 ± 2 °C ambient temperatures and 65 ± 5% relative humidity and was arranged in a completely randomised design in four replicates. Parameters assessed, including contact toxicity, repellent effects as well as effect of solvent extracts on the germination of maize seeds. Results obtained showed that the solvent extracts contained all the secondary metabolites tested except flavonoids and steroids. As well, all the solvent extracts were lethal and possessed high repellent action against S. zeamais, with ethanol fraction being the most potent. There was no significant difference in the germination of seeds treated with the solvent extracts as well as the ethanol control. The results obtained from this study reveal P. guineese as a potential candidate for bio insecticide and could serve as an alternative to synthetic insecticides.
Keywords
Piper guineense; Secondary metabolites; Sitophilus zeamais; contact toxicity
References
Statistics
Article View: 113
PDF Download: 70
Statistics
Number of Journals45
Number of Issues2,171
Number of Articles24,674
Article View24,460,684
PDF Download17,559,822