ABSTRACT Bambara groundnut (Vigna subterranea (L.) Verdc.) is one of the most neglected and under-utilized African legume with the potential to alleviate food insecurity and poverty in the tropical semi-arid regions of Africa. The crop is reported to be drought tolerant and produce reasonable yields in poor soils. However key morphological and physiological attributes that confer drought tolerance to different landraces is not well established. The main objective of this study was to assess t...
ABSTRACT Sugarcane smut disease caused by a fungus Sporisorium scitamineum is a limiting factor to cane production in Kenya. It is threatening the sugar industry due to its effect on cane quality and yields. Sugarcane (Saccharum officinarum L.) is known to have microbial organisms associated with its rhizosphere with potential antagonistic activity against the fungus, however numerous studies on rhizosphere microbial diversity and their antagonistic activity against fungal plant pathogens hav...
ABSTRACT The socioeconomic burden of pollen and fungi spores allergy are very high in terms of hospitalization, treatment, lethargy, poor concentration and behavioral changes which impact negatively on adults and children. The study of atmospheric pollen and fungal spores in the six geopolitical zones of Nigeria was carried out from June 2011 to May 2012. The aims of the study are to determine the seasonal prevalence of atmospheric pollen and fungal spores, examine the impacts of weather par...
ABSTRACT The potential of alkaloids from Panicum maximum floret infected with the fungus Tilletia ayresii in the control of uterine contraction in Sprague-Dawley rats was investigated using bioassay guided fractionation technique. Disease incidence study revealed that smut disease was significantly higher in Ikorodu site (95.00%) when compared with Akoka site (69.00%) and Isolo site (72.00%). The height of disease incidence was between the months of August and November. Thirteen species of f...
ABSTRACT Palynological analyses were carried out on four wells, Bentu-DX, Eze-DX, Meren-66 and Meren-67 from the Western Niger Delta. The palynomorphs recovered were abundant and diverse in the horizons studied. The Bentu-DX and Eze-DX wells are of Late Miocene (P860) – Late Pleistocene (P900) age (ca. 5.8Ma -1.3Ma). The assemblages are dominated by land derived palynomorphs particularly Monoporites annulatus, the mangrove pollen Zonocostites ramonae, Podocarpus milanjianus, Stereisporites ...
ABSTRACT Euphorbia L. is a genus of the family Euphorbiaceae. Some of the species are culturally, economically and medicinally valuable. The taxonomy of the genus was re-evaluated using classical and experimental approaches to unravel the complex inter-relationships and problems of identification existing within the genus. Herbarium studies, natural population sampling, ecological observation, experimental cultivation, morphological and anatomical characterization were some of the study appr...
A small proportion of sporangia of P. palmivora, less than 1.0 per cent, formed by hyphae growing on cocoa pods germinated in humid air at 25°C whilst still attached to the hypha.to produce germ tubes terminated by secondary sporangia.
ABSTRACT Seven Aspergillus species, A. clavatus, A. flavus, A. Lutn i qe tus, A. niger, A. ochraceus, A. sulphureus and A. ustus have been used to investigate the role of three Coleopteran insect pests, namely, Cal.1osobrochus macula tus, st tophiJ. us zeamais and 'rribo tium castaneum in the persistance and spread of contaminant fungi among grains of maize (Zea mays) and rice (Oryza sativa) and seeds of bambara groundnut (Vigna subterranea) a nd cowpea (Vigna unguiculata). The Aspergi11us sp...
ABSTRACT The physiological and morphological characteristics of five strains of Sclerotium rolfsii, namely, XLL, XAl, XA2, ELI and EL2, which were identified as strains by the aversion test, were studied. The susceptibility of five varieties of cocoyam, 'Amankani fitaa', 'Arnankani fufuo', 'Arnankani kyirepe' and 'Amankani pa' of Xanthosoma sagittifolium and a single variety of Colocasia antiquo rum to these strains, was also investigated. The appearance of the strains on Potato Dextrose Aga...
ABSTRACT Seasonal changes in the phytoplankton at four depths at station
ABSTRACT Research was carried out to develop an effective inoculum carrier of the nodule bacterium, Rhizobium sp., for the inoculation of seeds of bambara groundnut [Vigna subterranea (L.) Verde , comb . nov. = Voandzeia subterranea (L. ) T h o u a r s ] f r o m a local material. Five out of 16 strains of Rhizobium sp. isolated from soils of legume farms at eight localities within a radius of 180km from L e g o n were used in experiments to test the efficiency of the carrier that was develope...
ABSTRACT The research was carried out to study diversity (phenotypic and genetic) and population structure of cowpea germplasm assembled from the DPEB and SARI. A total of 78 cowpea accessions from these two sources were used for the study. Data was collected on twelve vegetative and reproductive traits, four polyphenols, crude protein, seven mineral elements, nineteen amino acids and three SSR markers. Methanolic extracts of pulverized cowpea seeds were used to determine concentrations of p...
ABSTRACT Echinoids are recognized as important components of temperate kelp forests because of the impact that they have by grazing. The provision of shelter by some echinoid species for both juvenile conspecifics and for other species of echinoids has been widely documented. The behaviour is thought to be important in the survival of these species. The role of echinoids as protective "nurseries" for several types of marine animals has also been suggested. Adult echinoids are supported 1 - 2 ...