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Articles by O.T. Adeniji
Total Records ( 5 ) for O.T. Adeniji
  O.T. Adeniji and O.B. Kehinde
  In the tropical and subtropical regions of the world, okra pods are consumed fresh. The introduction of pure lines and hybrids with improved length and width into the cropping system, necessitate studies on the combining ability and genetic components for the length and width of pods. Seven parents and 21 F1 generations were planted for evaluation in a randomized complete block design with two replications. The results indicated that the means squares due to GCA and SCA for length and width of pods were significant. The estimated variance due to SCA was greater than GCA variance for length and width of pods at edible stage and vice versa for length and width of pod at maturity. The study identified Parents 7, 6, 4 and 5 as best combiners for edible pod length and width, mature pod length and width. Component analysis indicated that the dominant genetic action predominate other genetic effects in the inheritance of length and width of pods. The dominance components (H1 and H2) were found to be greater than the additive gene effects (D). The ratio vH/D revealed overdominance loci for characters evaluated. The estimate F were positive (edible pod length and mature pod length) and negative (edible pod width and mature pod width). The proportion v4(DH1+F)/ v4(DH1-F) was unity. While the ratio 4H2/4H1 = 0.25 for all characters evaluated. The non-additive genetic effects accounted for a low to moderate heritability estimate in narrow sense recorded in the study. Both Oligogenic and polygenic action were found in the study. The study indicated an empirical superiority of the possibilities of evolving pure lines and hybrid okra with improved length and width into the cropping system.
  Sabo Elizabeth and O.T. Adeniji
  Dry Season vegetable production (Fadama) plays a key role in the economics of Adamawa state as a basic source of food, income and employment especially for resource poor farmers. A study was under taken to assess the socio-economic characteristics of dry season vegetable farmers, types of vegetables cultivated, problems and constraints to rapid development, problems associated with low yield and income. Findings revealed that the youths are involved in dry season irrigation farming and that the household size could be a dependable source of labour. Onions, cabbage and tomatoes are largely cultivated as compared with other vegetables. Lack of capital, inadequate agricultural technology information and inputs limits large scale production. Bore holes constructed along the banks of the river was identified as a major source of water and the use of motorized pump was identified as the technology used in dry season farming. The farmers indicated the need for agricultural extension services, but the dearth of extension staff limits achieving high productivity.
  O.T. Adeniji
  Studies on accumulation rate, association and stepwise regression of agronomic character to pod and seed yield were carried out among cultivars of soybeans. Field experiment was laid out in a randomized complete block design with a split plot arrangement and replicated 3 times. The cultivars were allocated to the main plot, while the stages of maturity were allocated to the sub plot. Representation samples were analyzed for accumulation of photostynthate in the shoots roots and seeds as affected by the stages of maturity. The result indicated a significant difference for pod length, plant height, dry shoot weight dry pod wall weight and dry weight as affected by the stage of maturity. The accumulation of photosynthate in the seed was highest (3.151.69) in Tgx 923-2E. A positive correlation between seed weight and number of branches, pod number per plant and pod wall weight, suggests that these characters may be components for improvement in seed yield. The stepwise multiple regression analysis identified the pods per plant to have accounted for 96% of variability for seed weight. The seed weight contributed 96% of the total variation observed for pod yield. The number of pods per plant recorded the highest positive direct effects on weight. This study identified the number of pods per plant as important character for pod yield improvement in soybeans.
  O.T. Adeniji and O.B. Kehinde
  In the tropical and subtropical regions of the world, okra pods are consumed fresh. The introduction of pure lines and hybrids with improved length and width into the cropping system, necessitate studies on the combining ability and genetic components for the length and width of pods. Seven parents and 21 F1 generations were planted for evaluation in a randomized complete block design with two replications. The results indicated that the means squares due to GCA and SCA for length and width of pods were significant. The estimated variance due to SCA was greater than GCA variance for length and width of pods at edible stage and vice versa for length and width of pod at maturity. The study identified Parents 7, 6, 4 and 5 as best combiners for edible pod length and width, mature pod length and width. Component analysis indicated that the dominant genetic action predominate other genetic effects in the inheritance of length and width of pods. The dominance components (H1 and H2) were found to be greater than the additive gene effects (D). The ratio VH/D revealed overdominance loci for characters evaluated. The estimate F were positive (edible pod length and mature pod length) and negative (edible pod width and mature pod width). The proportion V4(DH1+F)/ V4(DH1-F) was unity. While the ratio 4H2/4H1 = 0.25 for all characters evaluated. The non-additive genetic effects accounted for a low to moderate heritability estimate in narrow sense recorded in the study. Both Oligogenic and polygenic action were found in the study. The study indicated an empirical superiority of the possibilities of evolving pure lines and hybrid okra with improved length and width into the cropping system.
  O.T. Adeniji and C.O. Aremu
  Correlation, stepwise multiple regression and path coefficient analysis were used to determine the relationships, direct and indirect effects of agronomic and reproductive characters on pod and seed yield. Eighteen F2 generation obtained from hybridization of West African okra were planted for evaluation in a randomized complete block design with two replications in a single locations. Data were collected on agronomic and reproductive characters. Significant differences were observed among the segregating population for pods/branch, seeds/pod, inter node distance, seeds/ridge branch length, height at flower bud initiation and height at flowering. A positive correlation (p<0.05) was recorded for number of pods/plant and seed weight, height at maturity, ridges/pod and seeds/ridge. The seed weight recorded a positive correlation coefficient with edible pod width, seeds/ridge and pods/plant. The stepwise multiple regression analysis identified two characters (height at maturity and number of pods/plant) to have accounted for 31% of variation observed in seed weight. Mature pod length was responsible for 39% of variability in seed weight. The numbers of ridges per pod and plant height at maturity were responsible for 25% of variation due to regression in pod yield. The path analysis identified plant height at maturity, ridges/pod, pods/plant, mature pod length and seed/ridge as selection indicators for pod and seed yield improvement in West African Okra.
 
 
 
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