Browsing School of Biological and Physical Sciences by Title
Now showing items 24-43 of 59
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Evaluation of chlorpyrifos ethyl elisa kit and assessment of use and spatial distribution and temporal trend of selected organophosphate and carbamate pesticides residues in water, sediment and fish from lake Naivasha
(Maseno University, 2015)Heavy seasonal use of specific organophosphate and carbamate in the catchment area of Lake Naivasha is a potential cause of pollution of sediment, water and fish in the lake. However, there is lack of data on the potential ... -
Evaluation of morphophysiological, biochemical and yield responses of Bambara groundnut landraces to sodium chloride salinity
(Maseno University, 2022)Soil salinity limits crop growth, development and productivity in agricultural soils worldwide and contributes to food insecurity. It is induced by accumulation of high levels of particularly sodium and chloride ions within ... -
Evaluation of Taro Leaf Blight (Phytophthora Colocasiae) Disease Incidence, Severity, Environmental Effects And Relationship Between Resistance And Agronomic Traits of Selected Taro (Colocasiae Esculenta) Accessions in Western Kenya.
(Maseno University, 2019)Taro (Colocasiae esculenta L. Schott) popularly known as ‘nduma’ is an aquatic plant grown for its edible leaves and corms. It is mainly cultivated in Western and Central Kenya but its production is constrained majorly ... -
Fate Studies of Chlorsulfuron in Selected Soils Within the Mara River Basin of Kenya
(Maseno University, 2016)Chlorsulfuron is a sulfonylurea herbicide used to control broadleaf and grass weeds in wheat farms within the Mara River Basin. It is assumed to be environmentally safe due to low application rates, relatively shorter ... -
Field and laboratory evaluation of newly-introduced Long-lasting insecticide treated nets (llins) for malaria Vector control
(Maseno University, 2010)Insecticide treated nets (ITNs) have been proven to substantially reduce morbidity and mortality due to malaria among children and pregnant women in Sub-Sahara Africa. However, the disadvantages with ITNs are that they ... -
Genetic Basis of Heat Induced Sex Determination in Nile Tilapia (Oreochromis Niloticus L.), and Genetic Variability of the Species Local Populations
(Maseno University, 2011)Oreochromis niloticus commonly known as Nile tilapia is the most cultured tilapine cichlid in the sub-Saharan Africa. Most of the culture practices are of mixed sexes with the inherent problem of overpopulation leading ... -
Genetic basis of heat induced sex determination in Nile tilapia (oreochromis niloticus l.), and genetic variability of the species Local populations
(Maseno University, 2011)Oreochromis niloticus commonly known as Nile tilapia is the most cultured tilapine cichlid in the sub-Saharan Africa. Most of the culture practices are of mixed sexes with the inherent problem of overpopulation leading ... -
Genetic Variability of Maize Streak Virus (Msv) for Virulence and Resistance in Maize
(Maseno University, 2014)Maizestreakdisease (MSD), caused by Maize streak virus (MSV), reduces maize yields in an infectedmaize plant by up to 100% even in high potential zones. The geographical range of MSVis restricted to Africa and its ... -
Growth and development of nerica rained rice (Oryza Satiya)under water deficit conditions
(Maseno University, 2012)Food shortage is a major problem in sub Saharan Africa as population increases. Over 89% of Kenyans are food poor and are malnourished especially in rural areas. Water deficit is a major problem 'in rice grown under ... -
Growth and Physiological Response of Seven Amaranth Species to Soil Water Deficit
(Maseno University, 2018)Soil water deficit is a principal abiotic factor that limit plant growth and development in dry areas. Insufficient moisture contribute to soil water deficit and some negative effects on plants such as reduced growth, ... -
Growth Performance, Survival and Economics of Clarias Gariepinus (Burchell 1822) Under Mono- And Polyculture with Oreochromis Niloticus on Varying Crude Protein Levels
(Maseno University, 2019)With the progressive decline of capture fisheries and human population upsurge worldwide, aquaculture is expected to play a great role in ensuring sufficient fish in the market. Thus, aquaculture is promoted by world food ... -
Influence of landscape heterogeneity on plasmodium infection in Nyakach sub-county, western Kenya
(Maseno University, 2022)Despite scaled up intervention strategies in Kenya, existing control and treatment tools have not suppressed Plasmodium infection. Persistence of malaria has been attributed to submicroscopic infection with densities too ... -
Local adaptations, comparative trophic ecology and phylogenetic analysis of the haplochromine Cichlids of lake Kanyaboli, a satellite lake of lake Victoria,Kenya
(Maseno University, 2005)The satellite lakes of Lake Victoria region have been noted as potential refugia of haplochromine cichlids that have gone extinct in Lake Victoria. These lakes include lakes Kanyaboli, Sare and Namboyo in Kenya, Nawampasa, ... -
Molecular Characterization of Differentially Expressed Genes During Glossina Morsitans Morsitans and Trypanosoma\Congolense Interactions
(Maseno University, 2018)African trypanosome, Trypanosoma congolense parasite transmitted by tsetse flies (Glossina spp) cause Animal African Trypanosomiasis in (AAT or Nagana) in animals. The parasite undergo cyclical ( development in the tsetse ... -
Molecular Profiling and Phylogenetic Clustering of [Vigna Unquictdata (L.) Walp.] Gene Pools from the Gene Bank of Kenya and Ecotypes Based On Putative DNA Barcode Loci And intergenic Spacers
(Maseno University, 2017)Thenovelty of mtDNA gene loci, COl in DNA barcoding is undisputed. This is attributed to its standardized sequencing segment of the cytochrome c oxidase-l gene with the necessary universality and variability making it a ... -
The natural pyrethrins and carotenoid pigments
(University of Nottingham, 1983)The thesis describes the chemistry of some commercial natural products obtained from plants indigenous to Kenya. The natural products are the insecticidal 'pyrethrins' obtained from flower heads of Chrysanthemum ... -
On the design and functionality of a solar chimney, Solar pressure-staged wind tunnel electric power Generating plant and an integrating sphere Calorimeter. I . I \
(Maseno University, 2009)The design and application of solar chimney and solar pressure-staged wind tunnel electric power generating plants involve the understanding of parameters which affect their operations and utilization. The size and ... -
Physicochemical parameters heavy metal residue levels and their speciation studies in the Victoria basin
(Maseno University, 2008)The occurrence of heavy metal contaminants in excess of natural loads is a problem of increasing concern in aquatic ecosystems. This has been caused by anthropogenic, industrial and urban wastes as well as natural geochemical ... -
Physiological, biochemical and yield responses of maize and banana plants under Calliandra calothyrsus, Sesbania sesban and Leucaena diversifolia intercropping in Vihiga county, Kenya
(2022)Increasing population leads to demand for more food. Consequently, there is need to expand agricultural land, necessitating cutting down of trees. This however, leads to soil degradation. Nutrient depleted soils and poor ... -
Phytochemical Evaluation of Cissampelos Parelra (A. Rich) Engl., Tinospora Oblongifolia { (Engl.)Troupin And Triclisia Sacleuxii (Pierre) Diels for Antiplasmodial and Antibacterial activities
(Maseno University, 2014)Plants provide awide range of useful chemicals for inanaging many ailments. Large numbers of biologically active compounds with wide varieties of structures have been isolated from plants with some developed into drugs. ...