FACULTY OF AGRICULTURE

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    Analysis Of Sexual Dimorphism In Morphometric Variables Of Cane Rat
    (2018) Osaiyuwu, O.H.; Akinyemi, M.O.; Akindele, O.D.; Ewuola, K.M.
    The sex effect and interrelationship between body weight and six linear body measurements o fforty-five (15 bucks and 30 does) grasscutters aged between 12 and 24 months was assessedusing path analysis. Body weighty and linear body measurements: hind leg length, rump height, paunch girth, face width, mouth width, and total body length were measured for the male and female grass cutter. Results showed that there were significant differences (p<0.05) between the male and the female cane rats for all the parameters measured indicating sexual dimorphism in the cane rat All parameters assessed had highly significant (p<0.0001) and very strong positive correlation coefficients in both sexes. The path analysis indicated that in males, hindleg length (2.86;p<0.0001) had the highest direct effect on body weight, while rump height (-1.45; p<0.0001), had a negative direct effect In the female group, all the parameters evaluated had a nonsignificant, positive direct effect The hind leg length was observed to have the highest (0.29; p<0.0001) path coefficient while the mouth width (0.02; p<0.0001) had the least path coefficient It was concluded that sex had an effect on the interrelationship between body weight and linear body measurements in grasscutter.
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    Evaluation and heritability studies of local lima bean (phaseolus lunatus L.) cultivars from South-west Nigeria
    (Universidad de Oriente Press, 2007) Akande, S. R.; Balogun, M. O.
    Seven local Lima bean cultivars were evaluated at Ile-Ife in the humid rainforest environment of south western Nigeria for two years. A randomized complete block design with three replications was used each year. Data were subjected to analysis of variance, Pearson correlation and stepwise multiple regression analyses. Heritability estimates of 10 agronomic characters evaluated were also determined. Significant year and cultivar effects were observed for most of the characters. Seed yield ha-1 varied from 289.14 to 1358.74 kg. Only two cultivars had seed yield above 1000 kg ha-1, others yielded poorly. Seed yield had positive and significant correlation with branching height, number of seeds per pod, 100- seed weight and inter-nodal length. Results of stepwise multiple regression analysis showed that pod weight per plant, 100-seed weight and pod length were the main seed yield components in Lima bean and together they accounted for 98% of the variability. One hundred seed weight also had the highest broad sense heritability estimate of 98%. Characters such as pod length, mid leaflet surface area, pod weight per plant and inter-nodal length were moderately heritable. The implications of these findings in lima bean improvement were discussed.