This research was done in order to assess the effects of seasonal flooding on irrigation water quality of the floodplains of Wukari Area of Taraba state. Water samples were collected from five different flood plain locations (Nwuko, Tsokundi, Rafin-Kada, Gidan-Idi and Gindin-Dorowa) in 2016 and 2017. Completely randomized design (CRD) was employed replicated three times. The results obtained were subjected to analysis of variance and means separated using F-LSD test at P ≤ 0.05. The results of the water quality analysis showed that all the determined parameters were significantly different at the different sample locations, except water pH of the year 2016 which was not significantly different at the different sample locations. The results show that the flooded water could be used for irrigation since they were found to be relatively safe and hence required little or no treatment for soluble salts. Water from flooding within the Wukari Floodplains is recommended for supplementary irrigation.
The characterization of chemical and medicinal properties of the leaf of Xylopia aethiopica was carried out with the aid of Shimazu Japan Gas Chromatography 5890-11 and GC-MS QP 2010 Plus Shimazu Japan. The chromatogram revealed 34 peaks which yielded 34 compounds with their molecular weights, structures and formulars elucidated. Initial phytochemical examination revealed the presence of alkaloid 4.3%, flavonoids 5.1%, saponins 4.89%, tannin 2.2%s, cardiac glycosides and steriods. Antimicrobial determination revealed activity against selected human pathogens: Pseudomonas aeruginosa 10mm, Staphylococcus aureus 20mm, Streptococcus specie 22mm ,Aspergillus niger 16mm, Mucor specie 18mm and but was resistant to Klebsiella pneumonia. Most of the compounds identified in the leaf extract such as phytol.Vitamin E, Squalene, Caryophyllene oxide ans Isoaromadendrene epoxide has proven anti-cancer, anti-tumors, anti-inflammatory antioxidant and anti-arthritic properties.
The aim of this study was to examine the effects of seasonal flooding on the properties of floodplain soils of Wukari Area of Taraba state. The treatments consisted of five different locations of Gidan-Idi, Gindin-Dorowa, Tsokundi, Rafin-Kada and Nwuko and three different soil sample depths of 0-20 cm, 20-40 cm, and 40-60 cm laid out in a completely randomized design (CRD) and replicated three times. Soil samples were collected from each plot in 2016 and 2017. All soil samples were analyzed for physical and chemical properties. The results obtained were subjected to analysis of variance and means separated using F-LSD test at p≤.05. The results of the soil properties analysis showed that some of the determined parameters were significantly different at the different sample locations at p≤.05. The soils of Wukari Floodplains are mostly clay loam in texture having very slightly acid to neutral soil reaction, moderate organic matter, low total N, moderate available P, low exchangeable bases and CEC. The flood plain soils were moderate in soil fertility, a confirmation of the general characteristic of Savanna soils. The soils were not deficient in micronutrients. Seasonal flooding had significant (positive) influence on some physical and chemical properties of the flood plains most particularly at Rafin-Kada.
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