This research was carried out to assess the plant species diversity complex in Nasarawa State, Nigeria with a view to obtain an accurate database and inventory of the naturally occurring plant species in the State for reference and research purposes. This preliminary report covers a total of nine (9) local government areas in the state. The work involved intensive survey and several visits to the sample sites for plant identification and enumeration exercise. The diversity status of each plant and the distribution across the state were also determined using standard method. A total number of 275 plant species belonging to 61 plant families were identified out of which the families Asteraceae, Poaceae, Combretaceae, Euphorbiaceae, Moraceae and Papilionaceae were the most highly distributed across the entire study area. There was great extent of diversity in the distribution of plants across all the local governments sampled. However, the highest diversity in terms of different species was recorded in Wamba LGA. The most predominant food crop across the state was found to be Sorghum spp. This preliminary work has provided a baseline data and reference point for future taxonomical and biosystematics stratagem in Nasarawa State.
Effect of Chemical, Organic and Biological Fertilizers on Protein Concentration and Protein Electrophoretic Profiles of Wheat Plants Irrigated with Seawater (Published)
Wheat plants grown under 0%, 20% and 40% of seawater, 0, 100, 250 and 500 kg/ha of urea as chemical fertilizer; Rhizobium and Azotobacter as biofertilizer; and 0, 5, 10 and 20 kg/ha of humic acid as organic fertilizer. Soluble, insoluble and total proteins as well as RAPD-PCR were evaluated. To obtain reliable molecular markers for response to salinity in such genotype, RAPD banding patterns by using two primers. It was found that low concentration (20%) of seawater caused an observed increase in soluble protein. While, high concentration (40%) of seawater caused a significant decrease in soluble and insoluble proteins as well as total proteins. Biological and organic fertilizer treatments increased total proteins even at 40% seawater treatment as compared with unfertilized plants at the same level of seawater. The results of RAPD analysis showed that the two primers (OPUPC-75 and OPA18 could efficiently align genomic DNA of wheat. Approximately 88 bands (AF) were amplified under different treatments using the two primers. Monomorphic and polymorphic bands ware present in all individuals, and the mean percentage of polymorphic bands for all treatments was 76.2%, with molecular sizes ranging from 350 to 1900 pb. It was observed also that eight bands of the 88 commonly detected in all the samples, so it could be the specific genus bands of Triticum aestivum species. It seems that the extensive polymorphism detected among seawater and fertilizertreatments elevated the degree of change occurring in DNA sequences
Aims of paper were: to compare area planted and harvested sorghum; determine production trend over the time-period of 53 years; estimate productivity trend and growth rate; and compare National Cereals supply–demand balance. Time series data collected from FAOSTAT and Bureau of Statistics spanning 1960 to 2013 were subjected to GENSTAT for statistical analysis. Results showed persistent decline in area planted and harvested. Area under sorghum cultivation, production and yield fluctuated erratically throughout study period. Production decreased from 84 000 tonnes in 1975 to 22 000 tonnes in 2010, with only 18% of the period recording yield above 1 tonne ha-1. Increase production area did not always translate into higher yield. Despite low yield, sorghum utilization was 16 000 tonnes compared to 11 000 tonnes produced, thus necessitating an import of 5 000 tonnes, thus there was higher sorghum self-sufficiency level. Promotion of sorghum production and its use should be revisited to address food security and export value.