Fostering Senior Secondary Students’ Attitude and Achievement in Biology in FCT-Abuja Using Facebook Instructional Strategy (Published)
The study investigated how Facebook Instructional Strategy could be used to foster Senior Secondary Students’ Attitude and Achievement in Biology in FCT-Abuja. A quasi-experimental research design was adopted. The population comprised 12719 senior secondary two biology students. The sample consisted of 247 SSII biology students selected from six government schools in the study area using purposive sampling technique. Data were generated using Germination Achievement Test (GAT) and Students’ Attitude to Biology Questionnaire (SABQ). The GAT and SABQ were validated and subjected to reliability analysis using Kuder-Richardson formula 21 (K-R21) and Cronbach Alpha formula which yielded coefficients of 0.75 and 0.68 respectively. Six research questions guided the study, while six hypotheses were formulated. Data collected were analyzed using mean and standard deviations to answer the research questions while Analysis of Covariance (ANCOVA) was used to test the hypotheses at 0.05 level of significance. The findings of the study revealed that there is significant difference in the mean achievement score of students taught seed germination using facebook instructional strategy and those taught using the lecture method; there is significant difference in the mean achievement scores of male and female students taught seed germination using facebook instructional strategy. There is no significant difference in the mean attitude ratings of students taught seed germination using facebook instructional strategy and those taught using lecture method; There is no significant difference in the mean attitude ratings of male and female students taught seed germination using facebook instructional strategy. Based on the findings, it was recommended amongst others that biology teachers-trainees should be trained on the use of facebook instructional strategy in teaching biology.
Study Ability of Wild T.Viride Compared With Mutant Strains For Production Nanosilver Particles and Effect on Seed Germination (Published)
The present work investigates the synthesis of silver nanoparticles using wild Trichoderma viride strain and induced mutant strain to compartment with each other. The cell filtrate of T. viride was used for the reduction of silver nitrate to silver nanoparticles. the results showed that success the wild and tow mutant strains that coded T. viride Fat13 and T.viride Has15 it were abile to synthesize nano silver particles . The results showed that the summit was the absorption after 12 hours in the mutant strain T. viride Has15 its have highest absoription band it was(0.674) followed by T. viride Fat 13 (0.6120) after 20 hours too, while in wild T.viride strain it was (0.511) after 72 hours and The durable surface plasmon resonance centered at ca. 412-420 nm, TEM micrograph providing comprehensive morphology of silver nanoparticles,The morphology of the nanoparticles is highly variable. Under observation of such images, these assemblies were found to be aggregates of silver nanoparticles in the size range 5–50 nm prouduced from T. viride Has15 ,while it was in the size range 6-60 and 8-80 in wild strain. The attained data refer to obviously revealed that experience to AgNPs had unimportant effect on seed germination as associated to the control treatment. representative that the engineered particles not posture any toxicological properties to the seeds throughout the germination so the germination rate was not pretentious.
Allelothic Effects of Some Weeds on the Germination of Selected Seeds of Crops Grown In Akwaibom State Nigeria (Published)
In this work, a laboratory and polypot experiments were conducted to study the effects of water extracts of the tops and roots, and the decomposing mulches of the tops, of six (6) dominant weeds at the Teaching and Research Farms of the AkwaIbom State University, ObioAkpa Campus and adjoining areas, on the germination of seeds of six (6) most commonly grown seed crops. The weeds were Apiliaafricana, Emiliasonchifolia, Crotolariaretusa, Chromolaenaodorata, Panicum maximum, and Cyperusesculentus; the test crops were Zea mays, Citrullus vulgaris,Abelmoschusesculentus, Vignaunguiculata, Glycine soja, and Arachis hypogea. 500g of finely chopped tops and roots of each weed was extracted with 1litre of distilled water and applied to seeds in petri dishes after standing for 24hours. Finely chopped tops of each weed were also applied to 1.0kg of heat-sterilized soil in planting polybags as mulches at an equivalence of 0, 2.0, 4.0, 8.0 and 12.0 Mg ha_1.These were watered twice (2) daily and incubation for 48hours before planting of seeds. Germination counts (%) of seeds in petri dishes and seedlings emergence counts (%) from polybags were arranged for use with the randomized complete block design (RCBD) in 3 replications. Both the water extract and the decomposing mulches of tops of all the test weeds significantly (p<.05) inhibited the germination of all test seeds to varying degrees. Cyperusesculentus showed the highest inhibitory effect.