PHD-Department of Plant and Microbial Sciences
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Recent Submissions
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Introgressing Genes for Maize Lethal Necrosis Disease Tolerance to Maize Inbred Lines and Awareness Evaluation in Selected Counties in Kenya
(Kenyatta University, 2023)Maize lethal necrotic disease remain a major biotic challenge facing maize production in Kenya and the entire Sub-Saharan region. The disease is caused by the synergistic co-infections of any member of potyviridae family ... -
Application of Taxonomic and Dna Barcoding Techniques in Identifying Commonly Traded Herbal Plant Species in Selected Counties, Kenya
(Kenyatta University, 2022)Over eighty percent of the world’s population depends on herbal products for their basic health care needs. However, this widespread popularity is counterbalanced with the lack of relevant research to authenticate the ... -
Phenotypic, Physiological Characters and Quantitative Trait Loci in F2 Generation of Phaseolus Vulgaris under Drought Stress in Machakos County, Kenya
(Kenyatta University, 2022)Currently, yield of common bean (Phaseolus vulgaris L.) in smallholder systems in Kenya is comparatively low; standing at 400 kg ha-1 against global average of 960 kg ha-1. The low yield is attributed to drought which has ... -
Passion Fruit Woodiness Disease in Coastal Lowlands of Kenya and Genetic Transformation System of Farmer Preferred Passion Fruit (Passiflora Edulis Sims)
(Kenyatta University, 2021)Passion fruit (Passiflora edulis [Sims]) is an important economic crop grown for both export and domestic market world-wide. In Kenya, passion fruit productivity is low due to both biotic and abiotic constraints. Passion ... -
Spatial-Temporal Variation in Forage Resource Production in Richtersveld National Park, South Africa
(kenyatta University, 2021)Forage production and distribution in rangelands is not uniform but varies with seasons and between landscapes. In arid ecosystems such as Richtersveld National Park (RNP), biotic and abiotic factors affects forage production. ... -
Metagenomic Analysis of Bacterial Communities in Drinking Water Distribution Systems in Mombasa County (Kenya)
(Kenyatta University, 2016)Hygienic problems in drinking water distribution systems may originate from contamination by external microorganisms or growth of indigenous biomass. Among all water related disease outbreaks, 33% waterborne diseases ... -
Diversity and Molecular Phylogenetic Analyses of Parmelioid Lichens (Parmeliaceae, Ascomycota) In Kenya
(Kenyatta University, 2017-11)Lichens are symbiotic associations of fungi and algae or cyanobacteria.They are ecologically important as bioindicators for air pollution, forest age and health, and as sources of food, shelter and nesting materials for ... -
Characterisation of Colletotrichum Gloeosporioides and Effectiveness of Management Strategies of Anthracnose Disease of Avocado in Murang’a County, Kenya
(Kenyatta University, 2018)Avocado (Persea americana Mill) is a fruit commercially grown worldwide. Its production is affected by anthracnose disease which causes huge loss of avocado fruits both at farm level and in storage. Management of anthracnose ... -
Rapid Bioconversion of Rice Straw Using Cellulolytic Cultures for Improved and Sustainable Crop Productivity and Soil Fertility in Mwea, Kenya
(Kenyatta University, 2018)Proper management strategies for huge amounts of crop residue generated from agricultural farms need to be obtained. Composting is a good strategy in rice straw management. Traditional methods of composting rice straw ... -
Genetic transformation of select African sweet potato (ipomoea halalas l. Lain.)Cultivars with Weevil resistance genes and evaluation of phytoalexin levels from infected roots
(Kenyatta University, 2015)Abstract Sweetpotato is an important root and tuber crop in Sub-Saharan Africa (SSA) used as food and feed but weevil infestation remains a major concern. Weevils account for production losses between 28 and 100% but no ... -
Efficacy of Selected Medicinal Plants Used by the Ogiek Communities against Microbial related Infections
(2014-02-24)Ethnobotany and traditional medicines have been used for bioprospection for modern pharmaceutical in all the world continents. In Kenya the ethnobotanical of several communities has revealed that plants are important source ... -
Distribution, Behavioural Biology, Rearing and Pollination Efficiency of Five Stingless Bee Species (Apidae: Meliponinae) in Kakamega Forest, Kenya.
(2013-08-01)The study on distribution, behavioral biology, rearing and pollination efficiency of five stingless bee species (Apidae: Meliponinae) in Kakamega forest, Kenya showed that; species diversity was higher at Ivihiga compared ... -
Nitrogen fixation in faidherbia albida (chev) Del
(2012-06-07)Nodulation and arbuscular mycorrhizal infection was assessed in soils obtained from two habitats of Faidherbia albida in different ecoclimatic zones. A third site in a semi arid area but without F. albida was also assessed. ... -
Fungal parasitism of root-knot nematode eggs and effects of organic matter, selected agrochemicals and intercropping on the biological control of meloidogyne javanica on tomato
(2012-06-05)Root-knot nematodes are serious pests all over the world. Over 50% Pyrethrum losses have been associated with these pests in Kenya. Chemical management of these organisms is effective but difficult to sustain for long-term ... -
A study of the determinants of diversity and biosystematics of agromyzidae associated with leguminosae
(2012-05-25)Leafmining Agromyzidae has been reported to cause damage a wide variety of crops. Spencer (1973) Compiled a comprehensive review of the damage caused by the family and listed 156 pest species. He also provided summarized ...
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Introgressing Genes for Maize Lethal Necrosis Disease Tolerance to Maize Inbred Lines and Awareness Evaluation in Selected Counties in Kenya
(Kenyatta University, 2023)Maize lethal necrotic disease remain a major biotic challenge facing maize production in Kenya and the entire Sub-Saharan region. The disease is caused by the synergistic co-infections of any member of potyviridae family ... -
Application of Taxonomic and Dna Barcoding Techniques in Identifying Commonly Traded Herbal Plant Species in Selected Counties, Kenya
(Kenyatta University, 2022)Over eighty percent of the world’s population depends on herbal products for their basic health care needs. However, this widespread popularity is counterbalanced with the lack of relevant research to authenticate the ... -
Phenotypic, Physiological Characters and Quantitative Trait Loci in F2 Generation of Phaseolus Vulgaris under Drought Stress in Machakos County, Kenya
(Kenyatta University, 2022)Currently, yield of common bean (Phaseolus vulgaris L.) in smallholder systems in Kenya is comparatively low; standing at 400 kg ha-1 against global average of 960 kg ha-1. The low yield is attributed to drought which has ... -
Passion Fruit Woodiness Disease in Coastal Lowlands of Kenya and Genetic Transformation System of Farmer Preferred Passion Fruit (Passiflora Edulis Sims)
(Kenyatta University, 2021)Passion fruit (Passiflora edulis [Sims]) is an important economic crop grown for both export and domestic market world-wide. In Kenya, passion fruit productivity is low due to both biotic and abiotic constraints. Passion ... -
Spatial-Temporal Variation in Forage Resource Production in Richtersveld National Park, South Africa
(kenyatta University, 2021)Forage production and distribution in rangelands is not uniform but varies with seasons and between landscapes. In arid ecosystems such as Richtersveld National Park (RNP), biotic and abiotic factors affects forage production. ... -
Metagenomic Analysis of Bacterial Communities in Drinking Water Distribution Systems in Mombasa County (Kenya)
(Kenyatta University, 2016)Hygienic problems in drinking water distribution systems may originate from contamination by external microorganisms or growth of indigenous biomass. Among all water related disease outbreaks, 33% waterborne diseases ... -
Diversity and Molecular Phylogenetic Analyses of Parmelioid Lichens (Parmeliaceae, Ascomycota) In Kenya
(Kenyatta University, 2017-11)Lichens are symbiotic associations of fungi and algae or cyanobacteria.They are ecologically important as bioindicators for air pollution, forest age and health, and as sources of food, shelter and nesting materials for ... -
Characterisation of Colletotrichum Gloeosporioides and Effectiveness of Management Strategies of Anthracnose Disease of Avocado in Murang’a County, Kenya
(Kenyatta University, 2018)Avocado (Persea americana Mill) is a fruit commercially grown worldwide. Its production is affected by anthracnose disease which causes huge loss of avocado fruits both at farm level and in storage. Management of anthracnose ... -
Rapid Bioconversion of Rice Straw Using Cellulolytic Cultures for Improved and Sustainable Crop Productivity and Soil Fertility in Mwea, Kenya
(Kenyatta University, 2018)Proper management strategies for huge amounts of crop residue generated from agricultural farms need to be obtained. Composting is a good strategy in rice straw management. Traditional methods of composting rice straw ... -
Genetic transformation of select African sweet potato (ipomoea halalas l. Lain.)Cultivars with Weevil resistance genes and evaluation of phytoalexin levels from infected roots
(Kenyatta University, 2015)Abstract Sweetpotato is an important root and tuber crop in Sub-Saharan Africa (SSA) used as food and feed but weevil infestation remains a major concern. Weevils account for production losses between 28 and 100% but no ... -
Efficacy of Selected Medicinal Plants Used by the Ogiek Communities against Microbial related Infections
(2014-02-24)Ethnobotany and traditional medicines have been used for bioprospection for modern pharmaceutical in all the world continents. In Kenya the ethnobotanical of several communities has revealed that plants are important source ... -
Distribution, Behavioural Biology, Rearing and Pollination Efficiency of Five Stingless Bee Species (Apidae: Meliponinae) in Kakamega Forest, Kenya.
(2013-08-01)The study on distribution, behavioral biology, rearing and pollination efficiency of five stingless bee species (Apidae: Meliponinae) in Kakamega forest, Kenya showed that; species diversity was higher at Ivihiga compared ... -
Nitrogen fixation in faidherbia albida (chev) Del
(2012-06-07)Nodulation and arbuscular mycorrhizal infection was assessed in soils obtained from two habitats of Faidherbia albida in different ecoclimatic zones. A third site in a semi arid area but without F. albida was also assessed. ... -
Fungal parasitism of root-knot nematode eggs and effects of organic matter, selected agrochemicals and intercropping on the biological control of meloidogyne javanica on tomato
(2012-06-05)Root-knot nematodes are serious pests all over the world. Over 50% Pyrethrum losses have been associated with these pests in Kenya. Chemical management of these organisms is effective but difficult to sustain for long-term ... -
A study of the determinants of diversity and biosystematics of agromyzidae associated with leguminosae
(2012-05-25)Leafmining Agromyzidae has been reported to cause damage a wide variety of crops. Spencer (1973) Compiled a comprehensive review of the damage caused by the family and listed 156 pest species. He also provided summarized ... -
Phytoplankton and nutrient dynamics at Turkwel Gorge Reservoir, a new man-made lake in northern Kenya
(2012-04-17)Spatio-temporal variation in some physicochemical and phytoplankton parameters were investigated at Turkwel Gorge Reservoir and its inflowing and outflowing rivers between 1994 and 1995. Seasonal variation in inflow volume ... -
The influence of drip irrigation on ecophysiology and yield of arabica coffee hybrid Ruiru 11
(2012-04-11)The influence of drip irrigation on Coffee arabica L. cultivar Ruiru 11 was studied in a field experiment. Drip irrigation was applied when a soil moisture deficit (SMD) of 100 mm was recorded. FOur drip irrigation rates ... -
Interaction between arbuscular mycorrhiza fungi (AMF) and meloidogyne hapla on pyrethrun in Kenya
(2012-04-05)In this study, mycorrhizal status of pyrethrum in Kenya was determined. Fungal isolates obtained from pyrethrum fields were screened for efficacy against M. hapla and in improving pyrethrum growth. Effect of inorganic ... -
Cultural management of banana weevil cosmopolites sordidus germar (coleoptera: curculionidae) for improved banana field in Western Kenya
(2012-04-04)Studies on the effects of planting materials, weevil trapping, and intercropping on the banana weevil cosmopolites sordidus Germar. and crop yields were conducted in western Kenya from 1994 to 1997. The objectives of the ... -
Neem seed for the management of the banana weevil, cosmopolotes sordidus germar (coleoptera: curculionidae)and banana parasitic nematode complex
(2012-04-04)The study was conducted in Western Kenya, a prime banana growing area during the period of May 1996 to February 1999. The objectives were to control the banana weevil and parasitic nematodes with neem materials, thereby ...
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