Browsing School of Biological and Physical Science by Title
Now showing items 654-673 of 925
-
Physiological and biochemical responses of five nerica rice varieties (Oryza sativa L.) to water deficit at vegetative and reproductive stage
(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. NERICA (New Rice for Africa) are high yielding rainfed rice ... -
Phytochemical Analysis of Pyrethrum Plant Extract and its Anti-Aphid Effect On African Nightshades (Solanum Scabrum Mill)
(EAS Journal of Biotechnology and Genetics, 2021)African nightshades (Solanum scabrum) are one of indigenous vegetables widely consumed in Kenya. Yield losses due to aphids are estimated to about 84-96% in Kenya. Aphids have developed resistance to synthetic pesticides. ... -
Phytochemical analysis of some selected plants and families in the university botanic garden Of Maseno, Kenya
(IOSR journal of pharmacy and biological sciences, 2017)There has scarcely been any attempt to carry out phytochemical analysis on various insitu and ex situ plants conserved at the University Botanic Garden and no research has been done to document the educational and economic ... -
Phytochemical and antimicrobial properties of leaf extracts of Calliandra calothyrsus, Leucaena diversifolia and Sesbania sesban
(Bacterial Empire, 2020)Phytochemical compounds are secondary metabolites of plants useful as antimicrobial agents. Botanicals are being explored for bioactive compounds with antimicrobial properties against phytopathogens. Little information ... -
Phytochemical and fungicidal activity of selected plant extracts against Phaeoisariopsis griseola of common bea
(Research gate, 2020)Plant extracts are effective in plant pathogens control and are now becoming popular throughout the world. Allium sativum, Azadirachta indica and Tithonia diversifolia extracts have been reported to exhibit antimicrobial ... -
Phytochemical compounds and antimicrobial activity of extracts of indigofera spicata (creeping indigo) against candida albicans, streptococcus mutans and e. Coli
(BACTERIAL EMPIRE, 2022)Indigofera spicata has been used by Kamba community of Kenya as an herbal medicine over a long period to treat coughs and toothaches. There is scanty information on the phytochemical compounds and the antimicrobial ... -
Phytochemical Screening and Antimicrobial Effects of Leaf and Root Extracts of Crotalaria Brevidens on Candida Albicans, Staphylococcus Aureus and Escherichia...
(2017)Crotalaria brevidens (slenderleaf) leaves and shoots are used as food and have medicinal properties when consumed by human beings. It also acts as an agent in promotion of suicidal germination of striga, a parasitic plant ... -
Phytochemical Screening, Antioxidant Activity and Inhibitory Potential of Five Kenyan Medicinal Plants
(Journal of Advances in Medical and Pharmaceutical Sciences(JAMPS), 2021)The present study was conducted to evaluate preliminary phytochemical analysis and in vitro antioxidant activities of five plants (Olea europaea, Kigelia africana, Terminalia mollis, Croton macrostachyus and Bridella ... -
Phytochemicals and Antibacterial Activities of Leaf Extract of Tridax procumbens Linn. On Staphylococcus aureus and Escherichia coli
(East African Scholars Journal of Biotechnology and Genetics, 2019)Medicinal plants have been used as remedies for human diseases because they contain components of therapeutic value. Plants serve as the greatest source to obtain new antimicrobials. An increasing interest in herbal remedies ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis online, 2021)A new oleanane type triterpene characterized as 3α, 24-diacetoxy-12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis, 2021)A new oleanane type triterpene characterized as 3a, 24-diacetoxy12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis, 2020)A new oleanane type triterpene characterized as 3a, 24-diacetoxy 12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural eluci dation was accomplished using ... -
Phytoconstituents with contact toxicity and antifeedant activities from Englerodaphne subcordata (Meisn) Engl.(Thymelaeaceae) crude leaf extracts
(Islamic Azad University, Shahrood Branch Press, 2023-09-01)Englerodaphne subcordata (Meisn) Engl. (Thymelaeaceae) is a shrub that grows in dry evergreen forests, acacia woodlands and wooded grasslands. Phytochemical evaluation of the ethyl acetate and methanol crude leaf extracts ... -
Phytoecdysteroids from the stem bark of Vitex doniana and their anti-inflammatory effects.
(Planta Medica, 2013)With reference to the ethnopharmacological significance of Vitex doniana Sweet (Lamiaceae) leaves in the treatment of stomach and rheumatic pains as well as inflammatory disorders, biological studies on its stem bark ... -
The plight of the house-helps (domestic workers) in selected estates in Eastland’s area, Nairobi County, Kenya
(International Journal of Social Sciences, 2019)In Kenya, households in the middle class suburbs have increasing involvement of house-helps who in most cases take care of household chores. Moreover house helps have borne the brunt of being among the least paid in the ... -
Polariton and anti-polariton qubits in the Rabi model
(Research gate, 2017)This paper presents a precise algebraic and physical framework for studying the dynamics and practical applications of the quantum Rabi model. We redefine the quantum Rabi interaction in terms of polariton and anti-polariton ... -
Polycyclic Aromatic Hydrocarbons in the Gulf of Winam in Kenya. ISBN: 978-3-8465-2336-0.
(Lap Lambert, Germany, 2011) -
Population genetic structure and migration patterns of the maize pathogenic fungus, Cercospora zeina in East and Southern Africa
(Elsevier, 2021)Cercospora zeina is a causal pathogen of gray leaf spot (GLS) disease of maize in Africa. This fungal pathogen exhibits a high genetic diversity in South Africa. However, little is known about the pathogen’s population ...