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Articles by E. Asare-Bediako
Total Records ( 4 ) for E. Asare-Bediako
  E. Asare-Bediako , F.A. Showemimo , J.N. Buah and A.O. Ntow-Manu
  A study was conducted to assess the influence of floral induction on the quality of pineapple (Ananas comosus) fruits. Freshly harvested pineapple fruits from farmers’ managed fields that were induced by calcium carbide and non-induced (control) from Ayensudo, a major pineapple producing center in the Central Region of Ghana. The fruits were chemically analysed in the laboratory. The results revealed that moisture content of chemically induced pineapple is lower (84.3%) than the non-induced fruits (86.8%). Total sugars, sucrose and reducing sugars were all higher in induced fruits than the non-induced fruits. Organoleptic analysis showed 88.9% of the consumer preference for chemically induced fruits. Chemical induced fruits have shorter shelf-life than non-induced fruits.
  E. Asare-Bediako , F.A. Showemimo , Y. Opoku-Asiama and D.H.A.K. Amewowor
  Yam minisetts are susceptible to rot caused by microorganisms in both the sprouting media and mother seed yam. This study was conducted to determine the most effective treatment of yam minisetts against rot organisms. Five different protectants/disinfectants were used in vitro and replicated thrice. The result revealed that disinfectants (sodium hypochlorite and aqueous neem leaf extract), protectants (lime, wood ash and Benlate) either suppressed or inhibited the growth of fungi in vitro. Benlate inhibited the growth of all the test fungi, except Rhizopus stolonifer that was tolerant to the fungicide. Aqueous neem leaf extract was the least effective among the disinfectants in controlling fungal growth in vitro. Both quicklime and wood ash suppressed the growth of Aspergillus flavus and Rhizopus stolonifer and completely inhibited the growth of Sclerotium rolfsii and Penicillium sp. Sodium hypochlorite completely inhibited the growth of Sclerotium rolfsii and suppressed the growth of Aspergillus flavus, Fusarium sp., Rhizopus stolonifer and Trichoderma sp. Higher concentrations of the disinfectants and protectants were more effective in controlling the growth of these fungi than the lower concentrations.
  F.A. Showemimo , J.N. Buah , A.A. Addo-Quaye and E. Asare-Bediako
  Factorial mating design was used to generate twenty-five hybrids from five male sterile (A- lines) and five male fertile (R-lines) parents. Ten parents and twenty five hybrids were evaluated in a Randomised Complete Block Design replicated 3 times. Analysis of variance showed significant differences between crosses (male x female interaction) for plant height, 1000 seed weight and grain yield. High heterotic value of 692.03% for grain yield was recorded. Hybrids that exhibited high heterotic value for grain yield, likewise has high heterotic value for yield components; panicle length, panicle weight, 1000 seed weight and number of seed per panicle. Narrow sense heritability was low for seedling vigour, days to 50% bloom plant height, panicle weight, number of seed/panicle and grain yield. Moderate heritability was obtained for panicle length and 1000 seed weight, thus preponderance of non-additive gene action for all traits studied. The best all round hybrids identified from this study are MA10xNR 71143, MA10xNR71146, MA10xNR71167 and 2219AxNR71167.
  E. Asare-Bediako , F.A. Showemimo and Y. Opoku-Asiama
  Two cultivars of white yam (Pona and Dente) minisetts were used in a study to identify microorganisms causing rot in white yam. Laboratory analysis showed presence of Aspergillus flavus, A. niger, A. ochraceus, Aspergillus sp., A. tamari, Cladosporium sp. Corynebacterium sp. Fusarium sp. Penicillium sp. Rhizopus stolonifer and Trichoderma sp. Pona minisetts were more heavily infected and so suffered more severe rot than Dente minisetts. Among the pathogenic isolates, Sclerotium. rolfsii caused the most severe rot in both Pona and Dente, followed by A. niger and Fusarium sp. while the least were R. stolonifer, Trichoderma sp. and Corynebacterium sp. Use of disinfectants were suggested as pre-planting treatment to control the pathogens.
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