Phenological, Morphological and Agronomic Characterization of Bambara Groundnut Genotypes on Plinthite Soil in East-centre Area, Burkina Faso

Bambara groundnut has long been a neglected and understudied crop. Thanks to the new orientations for the d関eloppement of agriculture and achievement of food security in Burkina Faso, in recent years, studies on Bambara groundnut have experienced renewed interest. Despites nutritional, agronomic and socio-economic importance and some studies carried out on this crop. The diversity within Bambara groundnut cultivated remains poorly understood. The objective of this study was to assess phenological morphological and agronomic characterization of 20 Bambara groundnut accessions from National Institute for the Environment and Agricultural Research (INERA) genebank. The experimental device used was a completely randomized Fisher blocks with four replications on the site of University Centre of Tenkodogo. These accessions were evaluated on 23 morphological characters including four qualitative characters and 19 quantitative characters. Qualitative traits showed high proportion of oval terminal leaflet shape (70%), cream coloured seeds (45%) and 80% presence of eyes of various shapes and colours. The analysis of quantitative characters showed all the characters are discriminating except the plant spread (PlS) at the 5% treshold with regard to morphological, physiological and agronomic traits and low coefficient of variation (CV) values for the different phenological characters, except for the number of days from sowing to 50% plantlet emergence (EMG50). Pearson correlation matrix indicated positive and negative correlation. Most of the negative correlation was observed between phenological and agronomic traits The dendrogram showed organization of the variability in three different groups on the basis of the physiological, phenological and agronomic traits. The variability expressed among INERA gene bank genotypes showed important variability, which can be exploited in Bambara groundnut breeding programs using the clustering and associations of characters.

Evaluation des performances de sept test de depistage du VIH utilises au CNTS de Bamako

De nos jours compte tenu de la variabilite du VIH et de la multiplicite des tests de depistages du VIH nous avons evalue 7 tests dans le but de determiner ceux qui sont adaptes a nos contextes socio-economique . Cette etude s'est proposee d'evaluer les performances de 7 kits commerciaux de diagnostics de l'infection a VIH. Il s'agissait d'une enquete prospective transversale comparant 7 kits de depistage chez les donneurs de sang et les malades du service des maladies infectieuses de l'hopital du Point G. Elle a porte sur un total de 242 serums provenant de 161 donneurs de sang du CNTS; 81 malades hospitalises et 81 urines provenant de ces memes malades et 57 urines provenant de donneurs de sang .Le western Blot de Bio Rad a ete le test reference. En tenant compte de la strategie de l'OMS et de l'ONUSIDA de 1997 ; de la praticabilite et du cout des tests nous retenons en definitif les tests suivants : Chez les donneurs de sang ;GENSCEERN V2 et I MMUNOCOMB II HIVV1/2 Chez les malades presentant des signes cliniques evocateurs du SIDA. GENSCREEN V2 et GENIE II HIV1/2 Dans la population generale ou le taux de prevalence est de1;7p.100: le test GENSCREEN V2 en premiere intention et le test semi-rapide IMMUNO COMB II HIV1/2 en deuxieme intention pour la confirmation des resultats. Dans la population a risque ou la seroprevalence est superieure a 10p.100 le test GENSCREEN V2 Nous ne recommandons