Alterations Induced by Cowpea Weevil Callosobruhus maculatus F. (Coleoptera: Chrysomelidae) Infestation on Seed Germination Potential and Nutrient Quality of Vigna aconitifolia (Jacq.)
Journal Title: International Journal of Plant & Soil Science - Year 2017, Vol 17, Issue 5
Abstract
Aims: To evaluate alterations induced by cowpea weevil Callosobruhus maculatus (C. maculatus) infestation on seed germination potential and nutrient quality of Vigna aconitifolia (V. aconitifolia). Experimental Design: The research was carried out in a complete randomized block design. Place and Duration of Study: Department of Botany, University of Calabar, Calabar, Nigeria, between March and June, 2016. Methodology: A mix of V. aconitifolia seeds was bought, infested seeds sorted from the non infested ones at different levels of infestation and kept for three months before planting to ascertain alteration induced by C. maculatus on seed germination potential. The other seeds were sundried, milled into powder and used for proximate, minerals and vitamins analysis. Results: Significant (P = .05) alterations induced by C. maculatus on seeds germination ability and nutrient quality of V. aconitifolia were observed. These changes varied according to the severity of infestation. The germination potential of seeds was affected with significant reductions observed at all levels of infestation with respect to soil types compared to seeds before infestation (BI). Seed germination was the highest in sandy and loamy than in clay soil. Percentage germination observed on the eleventh day for seeds planted on clay, sandy and loamy soil were 61.7%, 87.1% and 66.7% (BI) compared to values of 4.2%, 6.1% and 5.3% respectively at severe infestation (SI). Results revealed that after infestation (AI) seeds of V. aconitifolia had significant (P = .05) decrease at SI level of 10.1% for moisture, 44.2% (ash), 25.5 % (fat), 18.0% (fibre) and 12.4% (carbohydrate) while protein had increase of 40.2%. P, Na, Cu and Ni showed decrease in content while K, Ca, Mg, Fe, Zn, Mn, Co depicted increase at all levels of infestation compared to seeds content BI. Lead was not detected. Significant decrease in vitamins A, BI, B2, B3, B5, B6, B9, C and biotin contents of the cowpea with decrease in severity of infestation was found. Vitamin E revealed increase with increase in severity of infestation. Conclusion: Callosobruchus maculatus infestation damaged seeds resulting in a reduction in the germination ability and marketability of V. aconitifolia seeds with severe alteration in nutritional quality.
Authors and Affiliations
A. A. J. Mofunanya
Keywords
Related Articles
- EP ID EP316657
- DOI 10.9734/IJPSS/2017/34265
- Views 86
- Downloads 0
Bio-efficacy of Polymer Coated Urea on Growth and Yield of Rice (Oryza sativa L.) under Lowland Cultivation
Aim: To evaluate the effect of polymer coated urea on plant growth and yield of paddy under lowland cultivation. Study and Design: The experiment consisting five treatments was carried out in Randomized Complete Block De...
Influence of Soil Fertility on Herbaceous Community Structure in Dunes and Swamps of the Coastal Plain of Laguna, South Brazil: An Ecological Approach
This study aims to evaluate the influence of soil nutrition on the organization of restinga communities on two different geoformations in the post-beach region. Studies were carried out at Laboratory of Morphology and Pl...
EDTA, Water-extractable Lead and Bioavailability of Lead in Non-mined Soil, Capped and Uncapped Tailings: The Effect of Biochar Amendment
A study was undertaken to determine the effects of corn cob biochar application on Pb-water and Pb-EDTA extractable, pH and bioavailability of Pb in non-mined soil and mine tailings. Biochar was applied to soil/tailings...
Effects of Lime, Mineral P, Farmyard Manure and Compost on Selected Chemical Properties of Acid Soils in Lay Gayint District, Northwestern Highlands of Ethiopia
Aim: To evaluate the effects of sole and combined applications of lime, mineral P, Farmyard manure, and compost on selected chemical properties of acid soils of Lay Gayint District after 20, 40, and 60 days of incubation...
Response of Sesame (Sesamum indicum L.) to Sulphur and Lime Application under Soil Acidity
A field experiment was carried out to study the effect of sulphur and lime application on sesame (Sesamum indicum L.) alley cropping. The results revealed that, increased application levels of sulphur up to 30 kg/ha sign...