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Articles by S.P. Bako
Total Records ( 3 ) for S.P. Bako
  S.P. Bako
  A glasshouse study was conducted to evaluate the effects of high temperature growth conditions on leaf nitrate reductase activity (NaR) and crude protein content in maize (Zea mays L.) plants and how these effects are influenced by ascorbate and kinetin applications. Both leaf NaR and crude protein declined significantly with plant age (p>0.05). There were no definite similarities between the patterns of variation in NaR activity and crude protein content. However ascorbate applications (but not kinetin) increased the correlative effects between NaR and leaf protein contents, in plants that were grown under high temperature stress conditions. Both NaR activity and protein contents were positively correlated with temperature. These correlations were higher between NaR and temperature than they were between crude protein content and temperature.
  S.O. Alonge , F.O. Alonge , S.P. Bako , J.D. Olarewaju and O.B. Adeniji
  Field trials were conducted at two sites in Ahmadu Bello University, Samaru-Zaria, Nigeria, to determine the effect of five rates (0, 125, 2501, 2502 and 500 kg ha-1) of compound fertilizer (NPK 27:13:13) on the growth (root and shoot dry weight) and grain yield of three Amaranthus species. The Amaranthus species include: A. hybridus, A. spinosus and A. hybridus var. cruentus. The plants were sampled weekly between 4 and 7 Weeks After Planting (WAP) and the second dose of the fertilizer (for 125 and 2502 kg ha-1) was applied at 5 WAP. The best growth in the Amaranthus species resulted from 500 kg ha-1 NPK treatment at 4 and 5 WAP and from 2502 kg ha-1 NPK treatment at 6 and 7 WAP. The 2501 kg ha-1 NPK application also produced slightly higher values in growth parameters than 125 kg ha-1 at 4 and 5 WAP, but this situation was reversed at 6 and 7 WAP. The overall data showed that, 2502 kg ha-1 NPK treatment produced higher shoot growth and grain yield than the other treatments. Amaranthus hybridus had the highest shoot growth and total dry weight ha-1 than the other species. Amaranthus hybridus var. cruentus also produced the highest total grain weight per hectare than the other species. This study showed that, the split in contrast to sole application of NPK fertilizer rates can be of greater economic benefit in Amaranthus production.
  M.C. Anongo , S.P. Bako and A.U. Ezealor
  Soil samples from three different locations in the Nigerian Guinea Savanna were analyzed in a study of the relationship between soil trace metal levels and soil microbes with respect to distance from the roadside and season. The three different sites were selected based on their vehicular traffic density. Soil microbes were analyzed by pathological techniques while trace metal levels (Pb, As, Zn, Cu, Co, Br and Ni) were analyzed using the energy dispersive X-ray fluorescence. Populations of soil microbes increased with increasing distance from the roadway, while metal contents decreased with increasing distance from the roadway for both dry and wet seasons. The soil microbes and trace metal content were higher for the wet season than for the dry season. Interactions between soil microbe populations and trace metal contents were statistically highly significant (p=0.05 and p=0.01) for season, location and interaction of distance, season and location. The mean increase of soil microbes between the dry and wet season were also highly significant. Five species of fungi were identified. Aspergillus sp., Monilia sp., Penicillium sp., Helminthosporium sp. and Rhizoctonia sp. while the bacteria were mainly Bacillus sp. These species responded to the presence of trace metals in the soil and may thus serve as microbial indicator species for metal pollution levels in the Nigerian Savanna.
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