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Articles by G.G.E. Osuagwu
Total Records ( 3 ) for G.G.E. Osuagwu
  H.O. Edeoga , G. Omosun , G.G.E. Osuagwu and O.O. Emezue
  Leaf epidermal investigations were carried out on three species of Mimosa, M. pudica, M. invisa and M. pigra common in Nigeria. The results obtained revealed the nature of the irregularly shaped epidermal cell walls of M. pigra and M. pudica. The epidermal cell walls of M. invisa were however mostly rectangular to pentagonal in shape. Morphological type of stomata was the diacytic type in all the species. The average stomatal index of 13.43% on the upper epidermis of M. invisa and that of 40.91% on the lower epidermis was significantly different from the stomatal index of the other two species. The result of this investigation will help in the taxonomy and also contribute to more information on the biology of these three obnoxious species of Mimosa.
  H.O. Edeoga , G. Omosun , G.G.E. Osuagwu and O.O. Emezue
  Microanatomical and histochemical investigations were carried out on three species of Mimosa:- M. pudica, M. invisa and M. pigra. These studies were carried out using a Leitz Wetzler Ortholux contrast microscope fitted with Vivitar-V335 camera. The results obtained from the studies of stem and roots showed variation in shape of cells. Presence of raphides were observed only in M. pigra. The usefulness of these observations in understanding the biology of these taxa is not in doubt. Similarly, the utilization of the results in the characterization and differentiation of the different species were highlighted and discussed to the interest of the field biologist and others who are interested in pharmaceuticals and traditional medicine.
  G.G.E. Osuagwu and H.O. Edeoga
  The influence of NPK inorganic fertilizer treatment on the proximate composition of the leaves of Ocimum gratissimum (L.) and Gongronema latifolium (Benth) was investigated. Cultivated O. gratissimum and G. latifolium were treated with NPK (15:15:15) fertilizer at 100, 200, 300, 400 and 500 kg h-1 treatment levels in planting buckets derived using the furrow slice method two months after seedling emergence. No fertilizer treatment served as control. The leaves of the plants were harvested for analysis one month after treatment. The leaf was used for the analysis because it the most eaten part. Fertilizer treatment significantly (p<0.05) increased the dry matter, moisture content, ash, crude protein, crude fibre, crude fat contents of the leaves of both plants. On the other hand, fertilizer treatment significantly, (p<0.05) decreased the carbohydrate and the calorific value of the leaves of the plants. The increase in the concentrations of these substances as a result of fertilizer of fertilizer treatment might be due to the role of fertilizer in chlorophyll content of plant’s leaves, which in turn enhanced the process of photosynthesis leading to increased synthesis of these substances. The decrease in the carbohydrate content might be due to its conversion to other materials in the plants. The results obtained were discussed in line with current literatures.
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