School of Biological and Physical Science: Recent submissions
Now showing items 881-900 of 933
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Genotype and environment interactions of yields and yield components of tea (Camellia sinensis) cultivars in Kenya
(Scientific Research Publishing, 2016)The tea crop provides income and employment to rural populations in many countries. In Kenya, tea, which is the leading export commodity crop, is grown in highlands east and west of the Rift Valley at altitudes ranging ... -
Structures and activities of academy of sciences
(Maseno University and “Excellence Center for Development Cooperation – Sustainable Water Management” (www. exceed-swindon.org) network, 2016) -
Challenges of maintaining tea quality
(2016)Tea (Camellia sinensis (L.) O. Kuntze) is an important cash crop contributing to economic wellbeing and wealth in many developing countries. The crop creates employment opportunities and development in the rural areas ... -
Variability of overhead volatile organic compounds in clonal tea (Camellia sinensis) and their influence on red crevice mite (brevipalpus phoenicis geijskes) infestati...
(2016)Tea production in Kenya is under threat due to red crevice mites (Brevipalpus phoenicis) infestations during droughts. Cultural pests control practices, eg use of resistant/tolerant cultivars are used in their control ... -
Effects of regional climate variability on the prevalence of diseases and their economic impacts on households in the Lake Victoria basin of Western Kenya
(Inderscience Publishers (IEL), 2016)Climate variability has a strong influence on disease prevalence and subsequently on economic wellbeing of the affected households. In this study, six regions were selected and clustered into three groups based on their ... -
Effects of cropping systems, lime placement methods and rates on sugarcane yields and quality under acidified soils of Kibos, Kenya
(2016)International Journal of Plant and Soil Science -
Effects of lime and nitrogen on properties of an acidic soil and nutrient content of sugarcane under sugarcane – soybean intercropping in Kenya
(2016)American Journal of Experimental Agriculture -
Evaluation of tea clones for resistance/tolerance to mites infestations and the influence of environmental factors on mites dynamics in Kenyan tea farms.
(International Society of Tea Science, 2016)Mites infestations reduce yields in tea production world wide. However, some tea cultivars are resistant/tolerant to mites attack. The resistance/susceptibility can also be influenced by abiotic factors. This study ... -
Clonal plain black tea quality parameters responses of hard physical withered leaf to rehydration and fermentation durations
(2016-04-16)Hard physical withers in tea processing result in reduced plain black tea quality parameters, but improve flavoury black tea quality. Chemical withers with minimal moisture loss improve plain black tea quality parameters. ... -
Triterpenes from Elaeodendron schweinfurthianum and Their Antimicrobial Activities against Crop Pathogens
(Scientific & Academic Publishing, 2017-01-26)Phytochemical evaluation of Elaeodendron schweinfurthianum (Loes) extracts led to the isolation of nine compounds which were identified as 3-oxofriedelane (1), 3α- hydroxyfriedelane (2), 3-oxo-29-hydroxyfriedelane (3), ... -
Recent influences of anthropogenic activities and seasons on heavy metal distribution in shoreline sediments in Lake Victoria near Kisumu City, Kenya
(2017)Journal of Environmental Analytical Chemistry -
Spatial distribution and habitat characterization of mosquito species during the dry season along the Mara River and its tributaries, in Kenya and Tanzania
(Bio Med Central, 2018-12)Vector-borne diseases are increasingly becoming a major health problem among communities living along the major rivers of Africa. Although larger water bodies such as lakes and dams have been extensively researched, ... -
Effects of land use change on land degradation reflected by soil properties along Mara River, Kenya and Tanzania
(Scientific Research Publishing, 2015-01-01)Human-induced changes to natural landscapes have been identified as some of the greatest threats to freshwater resources. The change from natural forest cover to agricultural and pastoral activities is rampant especially ... -
Comparative evaluation of ELISA kit and HPLC DAD for the determination of chlorpyrifos ethyl residues in water and sediments
(Elsevier, 2013-12-15)Enzyme linked immunosorbent assay (ELISA) kit is a versatile, cheap and relatively available tool that can be used in remote areas. In this study, performance of ELISA kit was evaluated in terms of accuracy, recovery, ... -
Variation in catechin composition of popularly cultivated tea clones in East Africa (Kenya)
(2013)Variation in catechin composition of popularly cultivated tea clones in East Africa (Kenya) -
7α-Acetylugandensolide and antimicrobial properties of Warburgia ugandensis extracts and isolates against sweet potato pathogens
(Elsevier, 2011-06-15)7α-Acetylugandensolide together with thirteen known drimane-type sesquiterpenes have been isolated from Warbugia ugandensis bark extracts. Their structures were established by spectroscopic and physical methods as well ... -
Variation in indoor levels of polycyclic aromatic hydrocarbons from burning various biomass types in the traditional grass-roofed households in Western Kenya
(Elsevier, 2011-07-31)Biomass burning as fuel in the traditional grass-roofed rural households of Western Province of Kenya in open fire places, in poorly ventilated conditions, lead to accumulation of soot under the roofs. This study ... -
The influence of geographical area of production and nitrogenous fertiliser on yields and quality parameters of clonal tea
(2010-04-01)Variations in requirements for tea production in Kenya and factors controlling growth and production of secondary metabolites responsible for the quality parameters are indicative of the need for non-uniform recommendations. ...