An Evaluation of the Effect of Treatment with Mixture of Cadmium and Lead on the Growth of Okra [Abelmoschus esculentus (L.) Moench]

Abelmoschus esculentus (L.) Moench was grown from seeds in soil polluted with a mixture of cadmium and lead in the ratio 1:1. The experiment consisted of control and four treatments (25, 50, 75 and 100 mg/kg) in three replicates. Data for growth parameters (seedling emergence, plant height, number of leaves, leaf loss, leaf area, and stem girth) were collected weekly for 3 months and number of flowers and fruits later in the experiment. The research lasted for 5 months. Physico-chemical and heavy metal analysis were carried out on soil samples at the end of the experiment.

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Sub-acute Toxicity Study of the Ethanolic Extract of Cramp Balls (Daldinia concentrica (Bolton) Ces. & De Not.) On Wistar Albino Rats

The study was to determine the level of toxicity of repeated administration of ethanol extract of a medicinal mushroom, Daldinia concentrica in animal model. Wistar albino rats of both sexes were sorted randomly into four groups of five rats each. Graded doses of 200, 400 and 800 mg/kg of the extract were administered orally, once daily for eight consecutive days to the rats in the respective groups, while control group received 10% tween 80 in distilled water only.

Gastro-Protective Activity of Methanol Leaf Extract of Polyalthia longifolia (Sonn.) Thw. on Ethanol-Induced Ulceration in Rats

The study evaluates the gastro-protective activity of methanol extract of the leaves of Polyalthia longifolia (Sonn.) Thw. in Wistar rats. Single daily dose of the extract (200, 400 and 800 mg/kg body weight) were administered orally to the respective groups of experimental rats for 28-consecutive days. The control and standard groups received distilled water and ranitidine (10 ml/kg and 250 mg/kg body weight) respectively. At the end of the period, they were exposed to a single oral dose of 75% ethanol.

Preys of Two Arboreal Frogs: Chiromantis rufescens and Leptopelis spiritusnoctis in Okomu National Park, Nigeria

A number of studies on the diets of anurans from Nigeria have been reported, however, there is a paucity of information on the diets of arboreal anuran species. Examination of the stomach contents of two arboreal frogs; Chiromantis rufescens and Leptopelis spiritusnoctis collected at Okomu National Park in Edo State revealed a total of nine prey taxa. The preys recorded belonged to eight insect orders (Coleoptera 48.98%, Crustacea 1.02%, Dictyoptera 3.06%, Diptera 5.10%, Hymenoptera 19.3%, Isoptera 1.02%, Lepidoptera 2.04% and Orthoptera 18.37%) and a mollusk (Gastropoda 1.02%).

Oligospermic Effects of Aqueous Extract of Fragaria ananassa (Strawberry) On Male Wistar Rats

Fragaria ananassa (strawberry fruit) is a popularly consumed fruit that is well known to contain potent antioxidants. The effects of aqueous extract of Fragaria ananassa on the sperm parameters and hormones were investigated in male adult Wistar rats. Fifteen (15) male Wistar rats were used for this experiment and were randomly assigned into a control group (A) and two treatment group (B and C) with each group containing five animals (n=5 per group).

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Preliminary Studies on Physostigma venenosum (Balf.) Seeds: Mineral Composition, Proximate and Phytochemical Analysis

Physostigma venenosum Balf., known as Calabar beans (Fabaceae family) is a very poisonous plant with reported therapeutic properties. Many studies have shown its use in medicine for eye problems, glaucoma, constipation, epilepsy, cholera, hypertension and tetanus. In this study, quantitative phytochemistry, proximate analysis and mineral constituents of the ethanol extracts of Physostigma venenosum seeds were investigated using standard analytical chemical procedures.

Optimization and Assessment of Different DNA Extraction Protocols in Cowpea (Vigna unguiculata L. Walp.)

The first and the most essential step in any genetic analysis is the extraction of good quality DNA. In this study, comparison of five different protocols of isolating total genomic DNA from Cowpea plant (Vigna unguiculata) was carried out. A total of 10 varieties of cowpea (V. unguiculata) were collected from IITA and planted in pots in a screenhouse in the Department of Botany, University of Ibadan, Nigeria.

Anti-Spermatogenic Effects of Ficus sycomorus Aqueous Leaf Extract on Testes and Epididymis of Adult Male Wistar Rats

The Effects of Aqueous Extract of Ficus sycomorus leaves on the testis, epididymis and sperm parameters in adult male Wistar rats was investigated. Eighteen [18] adult male rats were used for the experiment. The rats were randomly assigned into three groups; control group (A) and two treatment groups (B and C) with each containing six rats (n=6/group).

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Effects of Four Vegetable Oils on the Life cycle of Dermestes maculatus, Degeer, reared on dry fish (Clarias sp.)

The mortality of adult D. maculatus on fish treated with palm oil, groundnut oil, coconut oil and palm kernel oil at 2.5ml / kg, 5.0ml / kg and 10.0 ml kg respectively was monitored over a 15 day period. The highest mortality of 40% was recorded in groundnut oil, palm kernel oil and coconut oil at 10ml / kg treatment respectively at the end of the period. Lowest mortalities of 3.3% were recorded in the palm oil groundnut and coconut oil treatments at 2.5 ml/kg and 5.0 ml/kg respectively.

Occurrence and Source Apportionment of Polycyclic Aromatic Hydrocarbons (PAHs) in Urban Soil of Udu, Near Warri, Delta State

The occurrence and sources of polycyclic aromatic hydrocarbons (PAHs) were assessed in urban soils of Udu, near Warri in Delta State, Nigeria. The PAHs were quantified with gas chromatography equipped with flame ionization detector (GC-FID) after extraction and clean-up of the extracts with n-hexane/dichloromethane. The concentrations of ∑16 PAHs in the urban soils ranged from 269 µg kg-1 to 853 µg kg-1 .