Browsing by Author "AbdulRahaman, Abdullahi A."

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    Aeropalynological Investigation of the University of Ilorin, Ilorin, Nigeria
    (University of Port Harcourt., 2015) AbdulRahaman, Abdullahi A.; Aruofor, Oritsetimeyin S.; Garuba, Taofeeq; Kolawole, Saheed O.; Olahan, Ganiyu S.
    Hay fever allergy could either be from pollen or fungi spores. Using the Hirst model of pollen trap, pollen buckets were constructed; with pollen trap solutions inside them, they were placed in specific locations in the University of Ilorin for four months (December 2012/January 2013 to March/April 2013). Using acetolysis reaction, pollens and spores were recovered from the trap solution and were analyzed and identified in the microscope. Pollen/spore were counted and compared with meteorological parameters i.e. rainfall, sunshine, wind speed, humidity, and temperature. It was observed that pollen/spore concentrations were influenced by these meteorological factors. Hence there is need for us to always determine the amount of these pollen/spore concentrations all year round as it will help to predict the vegetation of a given area as well as helping hay fever sufferers manage their allergies effectively
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    Effects of Fungal Filtrates on Seed Germination and Leaf Anatomy of Maize Seedlings (Zea mays L., Poaceae)
    (University of Port Harcourt, 2014) Garuba, Taofeeq; AbdulRahaman, Abdullahi A.; Olahan, Ganiyu S.; Abdulkareem, Khadihah A.; Amadi, Jude E.
    This study was carried out to investigate the effects of 7-day-old fungal filtrates of Aspergillus niger and Penicillium chrysogenum isolated from maize seeds on percentage germination, morphological and anatomical structures of maize seedlings. The seeds were soaked in culture filtrate of each fungus for 12hrs before planting. Blotter method was used to observe seed germination. Results showed that the percentage germination of the seeds treated with culture filtrates of A. niger and P. chrysogenum (65.33% and 79.67% respectively) was lower than the control (100%) and significantly different from each other at significant level of P ≥0.05. The leaf area showed significant difference between the experimental and control plants but there was no significant difference in the leaf number. The tetracytic stomatal complex type and wavy anticlinal walls remained constant in all the treatments and control. The stomatal index of seed treated with A. niger on abaxial leaf surface (43.61%) showed significant difference with adaxial leaf surface (31.97%). The treatments had no significant difference on stomatal density at abaxial surfaces. Reduction in stomatal size and density suggests physiological implication.