Floristic Composition, Vegetation Structures and Physiognomy of a Typical Guinea Savannah: A Case Study of Minna-Bida Road, Niger State
Daudu Oladipupo Abdulazeez Yusuf,
Abubakar Abdulhakeem,
Dangana Mohammed Chatta
Issue:
Volume 2, Issue 4, August 2017
Pages:
22-30
Received:
16 August 2017
Accepted:
1 September 2017
Published:
30 September 2017
Abstract: Vegetation studies was undertaken to assess the floristic composition of Minna-Bida road of Niger State. The project area, i.e. Minna-Bida Vegetation, is a vegetation study cutting across five local government areas, Bosso, Chanchaga, Minna, Katcha and Bida local government areas of Niger State; this region lies in the Guinea Savannah. Transect and quadrat sampling methods were used to determine the vegetation cover of the study areas; in addition, GPS was used to take the coordinates of each of the sampling sites. The result showed that a total of 38 plant species belonging to 21 families were recorded in transects surveyed and comprising of both woody and herbaceous plant species. The species floristic indices of these communities is hereby presented in Table 4. Sixteen (16) species representing about 42% of the censored species were trees, ten (10) species representing about 26% are shrubs, whereas, twelve (12) species representing about 32% were herbs. The five most abundant species across the proposed project areas at the Minna-Bida community include: Hyptis suaveolens (739 individuals), Daniella oliveri (58 individuals), Vitellaria paradoxa (35 individuals), Mangifera indica (14 individuals), and Ageratum conyzoides (160 individuals). However, five of the species that had the least abundance are: Vitex doniana (1 individual), Prosopis africana (3), Senna sp (7 individuals), Nymphaea lotus (5 individuals), Khaya senegalensis (2 individuals). The IUCN status of most of the plant species encountered during the study showed that they can be broadly classified into two conservation status; most of the plants encountered are Data Deficient (DD), were as few of them are Vulnerable (V). Sheanut tree, Utricularia, Afzelia africana, and Mahogany are vulnerable, whereas, most of the other plants are either data deficient or least concerned. It is therefore concluded that Minna-Bida road represents a typical guinea savannah due to the composition of plants encountered. The floristic composition of the project area is highly diverse in species even over a seemingly homogenous area.
Abstract: Vegetation studies was undertaken to assess the floristic composition of Minna-Bida road of Niger State. The project area, i.e. Minna-Bida Vegetation, is a vegetation study cutting across five local government areas, Bosso, Chanchaga, Minna, Katcha and Bida local government areas of Niger State; this region lies in the Guinea Savannah. Transect and...
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Phytochemical Constituents, Thin Layer Chromatography and Antimicrobial Activity of Methanol Extract of the Stem and Leave of Citrus Limon (L)
Ayuba Yohanna Musa,
Okoro Benedict Chidiogor,
Abubakar Muhammad Nazif,
Ilesanmi Esther
Issue:
Volume 2, Issue 4, August 2017
Pages:
31-35
Received:
22 August 2017
Accepted:
5 September 2017
Published:
30 September 2017
Abstract: Citrus limon (L) leaf and stem used traditionally for the treatment of diseases and infections was phytochemically and antimicrobially screened. And also Thin layer Chromatography (TLC) was carried out on the crude methanol extracts. The phytoconstituents were qualitatively determined. The phytochemical screening of the crude methanol extract revealed the presence of saponins, terpenes, flavonoids, steroids, tannins, carbohydrates, anthraquinones, alkaloids, volatile oils and glycosides. The result of the antimicrobial screening of the crude methanol extract of the leaf showed potent activity against Staphylococcus aureus, candida albicans and bacillus subtillis. However, the crude methanol extract of the stem only showed activity against Staphylococcus aureus. TLC analysis of the of the crude methanol extract of the leaf showed three (3) spots while that of the stem revealed two (2) spots.
Abstract: Citrus limon (L) leaf and stem used traditionally for the treatment of diseases and infections was phytochemically and antimicrobially screened. And also Thin layer Chromatography (TLC) was carried out on the crude methanol extracts. The phytoconstituents were qualitatively determined. The phytochemical screening of the crude methanol extract revea...
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