Ghana journal of science最新文献

{"title":"On the question of te lateral equivalence between the voltaian sediments on the West Africa craton and the Buem and Togo sediments within the Pan-African dahomeyide deformed belt","authors":"P. Blay","doi":"10.4314/GJS.V30I1-2.47936","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47936","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124919803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A note on global regularity with growth for δ on pseudoconvex domain","authors":"P. Darko","doi":"10.4314/GJS.V30I1-2.47934","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47934","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"62 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116769737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potassiium-Argon radiometric dates of the Mid-Atlantic ocean floor","authors":"E. Agyei","doi":"10.4314/GJS.V30I1-2.47969","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47969","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126295283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studies of casual agents of rot in Dioscora rotundata poir var. Gboko(white yam)","authors":"L. Adimora, K. Oduro, H. Damptey","doi":"10.4314/GJS.V30I1-2.47967","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47967","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115406323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Some factors affecting gatching of Meloidogyne incognita (Kofoid and White 1919) Chitwood, 1949","authors":"O. Hemeng, B. Dadzie","doi":"10.4314/GJS.V36I1.47987","DOIUrl":"https://doi.org/10.4314/GJS.V36I1.47987","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124743520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review of the insect pests and diseases in relation to phenology and distribution of Triplochiton scleroxylon K. Schum (Obeche) in West Africa","authors":"M. Ashiru","doi":"10.4314/GJS.V30I1-2.47950","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47950","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130002906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"econological studies on the fat mouse steatomys parvus cuppedius (Rodentia: muridae) in Ghana: Population and reproductive biology","authors":"S. Yeboah","doi":"10.4314/GJS.V30I1-2.47937","DOIUrl":"https://doi.org/10.4314/GJS.V30I1-2.47937","url":null,"abstract":"","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114777149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies for sustainable conservation and use of legume genetic resources in Ghana","authors":"L. Aboagye","doi":"10.4314/GJS.V47I1.15925","DOIUrl":"https://doi.org/10.4314/GJS.V47I1.15925","url":null,"abstract":"Strategic development of conservation technologies in plant genetic resources (PGR) is the backbone for agricultural development, food security and sustainable livelihood, now and for the future. In this paper, strategies for conservation of legumes pertaining to the collection, characterization, evaluation and conservation are presented. An integrated approach to legume PGR management in germplasm collection, characterization and\u0000evaluation, together with genetic conservation strategies both in situ and ex situ, for effective utilization is stressed. Emerging approaches such as diversity block, community biodiversity register and biodiversity fairs for genetic advancement of legumes are discussed. Collaborative efforts of farmers, scientists and policy makers in networking, capacity building, information sharing on legume PGR, and policy formulation on seed laws, quality, financing, and private-public sector partnership in legume seed development would enhance the sustainable utilization of legume genetic resources for food and agriculture. Le developpement strategique de technologies de conservation en resources genetiques de la plante (RGP) est l'epine dorsale pour le developpement agricole, la securite alimentaire et le moyen d'existence durable, actuellement et pour l'avenir. Dans cet article, les strategies pour la conservation de legumineuses se rapportant a la collection,\u0000la caracterisation, l'evaluation et la conservation sont presentees. Une approche integree a la gestion de RGP legumineuse en la collection, la caracterisation et l'evaluation de germeplasme consideree conjointement avec les strategies de conservation genetique in situ et ex situ pour l'utilisation efficace est soulignee. Les approches emergeantes telles que le bloc de diversite, le registre de la biodiversite communautaire et les foires de biodiversite pour le progres genetique de legumineuse sont discutes. Les efforts fait en collaboration avec les agriculteurs, les scientifiques, les decideurs, pour le travail en reseau, le renforcement de capacite, le partage d'information sur RGP legumineuse, ainsi que l'elaboration de principes sur les legislations de graine, la qualite, le financement, l'association entre le secteur prive-public dans le developpement de graine legumineuse,\u0000amelioreraient l'utilisation durable de resources genetiques de legumineuse pour l'alimentation et l'agriculture. Ghana Journal of Science Vol. 47 2007: pp. 59-67","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124303377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regeneration Of Some Fuelwood Tree Species Of Humid Savanna Of Adamawa, Cameroon: Effects Of Season And Cutting Height","authors":"A. Ibrahima, P. Mapongmetsem, D. Bouitang, B. Hassana","doi":"10.4314/GJS.V47I1.15924","DOIUrl":"https://doi.org/10.4314/GJS.V47I1.15924","url":null,"abstract":"Six most widely used tree species of fuelwood (Daniellia oliveri, Entada africana, Hymenocardia acida, Lophira lanceolata, Piliostigma thonningii and Terminalia macroptera) were studied in three suburban localities of Ngaoundere (Bini, Borongo and Dang), for two seasons (rainy and dry seasons). Four cutting levels (0, 20, 35 and 50 cm from soil surface)\u0000and two cutting modes (horizontal and oblique) were achieved in each season in each locality and for each species. The experimental method was a split-plot with three replicates (localities). The main factors were fuelwood tree species and the under-factors were\u0000represented by the seasons, the cutting mode and the cutting height. The experimental unit was constituted by five trees. Data of shoot number, shoot height and diameter were recorded. Results showed that all species produced at least one shoot since the first month, excepted L. lanceolata in rainy season. The mean number of the shoots produced at the end of 3 months varied from four (L. lanceolata) to 11 (H. acida and E. africana). D. oliveri, L. lanceolata and P. thonningii significantly produced the greatest number of shoots in the dry season than in the rainy season. The other species had an opposite behaviour.\u0000The shoot number varied very significantly with the cutting height, but not with the cutting mode. The shoot growth in height and in diameter were not similar among species in any season, and the cutting height and the season did not influence the shoot growth of any species. The results would contribute to sustainable management of Adamawa savannas\u0000that are now under multiple anthropic pressures. Pour contribuer a la comprehension de\u0000la regeneration des especes energiques des savanes de l'Adamaoua, six essences (Daniellia oliveri, Entada africana, Hymenocardia acida, Lophira lanceolata, Piliostigma thonningii et Terminalia macroptera), les plus utilisees comme bois de chauffe ont ete mises\u0000en etude en milieu naturel dans 3 localites periurbaines de la ville de Ngaoundere (Bini, Borongo et Dang), pendant 2 saisons (saison des pluies et saison seche). Quatre niveaux de coupe (0, 20, 35 et 50 cm du sol) et deux modes de coupe (horizontale et oblique) ont\u0000ete realises a chaque saison, dans chaque localite et pour chaque espece. La methode experimentale est un split-plot a 3 repetitions (localites). Les facteurs principaux sont des especes et les sous-facteurs sont representes par les saisons, les modes et la hauteur\u0000des coupes. L'unite experimentale est constituee par 5 plants. Les donnees portaient sur le nombre, la hauteur et le diametre des rejets. Les resultats ont montre que toutes les especes ont initie la formation d'au moins un rejet des le premier mois, exceptee L. lanceolata en saison des pluies. Le nombre moyen des rejets produits au bout de 3 mois varie de 4 (L. lanceolata) a 11 environ (H. acida et E. africana). On note une disparite saisonniere entre les especes. D. oliveri, L. lanceolata et P. thonningii produisent\u0000s","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128948827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microbiological studies of macaroni and vegetable salads in waakye, a local street food","authors":"A. Adu-Gyamfi, J. Nketsia-Tabiri","doi":"10.4314/GJS.V47I1.15915","DOIUrl":"https://doi.org/10.4314/GJS.V47I1.15915","url":null,"abstract":"The microbiological quality of macaroni and vegetable salads served with waakye, was investigated. Aerobic mesophiles counts (AMC), coliforms counts (CC) and moulds and yeasts counts (MYC) were estimated, and the coliform profiles for different samples of macaroni (raw, local/ imported, laboratory-cooked) served with waakye, and vegetable salads served with waakye were determined. Raw macaroni (local and imported) had\u0000AMC of 3.6 and 3.0 log10 CFU/g, MYC of 1.9 and 1.0 log10 CFU/g and no CC, respectively. Laboratorycooked local samples had AMC of 2.4 log10 CFU/g and 3.3 log10 CFU/g (after 4 h storage) and no MYC. Macaroni obtained from vendors had AMC mean of\u00003.1-8.4, CC mean of 2.5-7.3 and MYC mean of 0- 4.1 log10 CFU/g depending on time of sampling. Vegetable salads sampled at early and late morning had AMC of 6.9 and 7.6, CC of 5.7 and 6.4, MYC of 4.9 and 5.4 log10 CFU/g, respectively. Six coliforms\u0000were detected on macaroni and three were detected in addition to Salmonella spp. on vegetable salads. No significant difference was recorded in the microbial load of raw local and imported macaroni. Cooking improved the microbial quality of raw macaroni (AMC of 2.4 log10 CFU/g). Generally, there were increases of 3-5 log cycles in the AMC, CC and\u0000MYC in macaroni sampled from waakye vendors in the morning (early and late) compared to those at dawn. Although the nature of raw macaroni and its cooking are adequate, cross-contamination from vegetable salads during the holding and bulk display periods cause deterioration in microbial quality of macaroni in waakye. There is the need to educate vendors on simple preventive steps of keeping food hygienically safe. La qualite microbiologique de macaroni et de macedoine de legumes servis avec waakye etait etudiee.\u0000Les comptes mesophiles aerobie (CMA), les comptes de coliformes (CC) et les comptes de moisissures et de levures (CML) etaient estimes et les profils de coliforme de differents echantillons de macaroni (cru, local/importe, cuit au laboratoire et waakye) et les\u0000macedoines de legumes servis avec waakye etaient determines. Le macaroni cru (local et importe) avait les CMA de 3.6 et 3.0 log10 CFU/g CML de 1.9 et 1.0 log10 CFU/g, et aucun CC respectivement. Les echantillons locaux cuits au laboratoire avaient CMA\u0000de 2.4 log10 CFU/g et 3.3 log10 CFU/g (apres 4-heure de stockage) et nulle CML. Le macaroni obtenu de marchandes avait CMA moyen de 3.1 a 8.4, CC moyen\u0000de 2.5 a 7.3 et CML moyen de 0 a 4.1 log10 CFU/g selon le temps d'echantillonage. La macedoine de legumes echantillonee au debut et a la fin de la matinee avait respectivement CMA de 6.9 et 7.6, CC moyen de 5.7 et 6.4, CML de 4.9 et 5.4 log10 CFU/g. Six coliformes etaient depistes sur le macaroni et 3 etaient depistes en plus de Salmonella spp. sur la macedoine de legumes. Aucune difference considerable n'etait enregistree de la quantite microbienne de macaroni cru, local et importe. La cuisson ameliorait la qualite\u0000microbienne de macaroni cru (CM","PeriodicalId":117280,"journal":{"name":"Ghana journal of science","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130061262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}