Browsing Department of Botany by Title
Now showing items 184-203 of 229
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Rainfed Rice Production and there Germplasm Development in Kenya
(U.S. Department of Energy Office of Scientific and Technical Information, 1999-07-01)ice (Oryza Sativa L.) has been grown in Kenya for several centuries and during this time has been locally selected by farmers for adaptation in the dry climate of Kenya highlands and coastal region. this history of selection ... -
The rate of outcrossing in grain amaranths
(Blackwell Publishing Ltd, 1991-09-01)Studies of intra specific and inter specific out crossing rates were carried out for grain amaranths using two populations of A. hypochondriacus (populations 1008 and 1024) and two populations of A. cruentus (populations ... -
Reaction of Some Coffea arabica Genotypes to Strains of Colletotrichum kahawae, the Cause of Coffee Berry Disease
(Blackwell Publishing Ltd, 2000-01-01)Pathogenicity tests were performed on 11 genotypes of Coffea arabica using single‐isolate suspensions of Colletotrichum Kahawae obtained from 90 monoconidial isolates. The objective of this study was to estimate the ... -
Relationship between leaf water status and varietal adaptation of
(East African Agricultural and Forestry Journal, 2008-09-15)Field and greenhouse experiments were conducted to examine differences in leaf water status between bean cultivars from low and high rainfall areas of Kenya, and hence investigate the relationship between this parameter ... -
Reproduction Inhibition Effects of Neem Products on the Larger Grain Borer (Prostephanus truncatus) (HORN) in Stored Maize Grains
(Egerton Journal of Science & Technology, 2012-12-07)The larger grain borer (LGB), Prostephanus truncatus (HORN), has become one of the most important insect pest of stored maize in tropical Africa where it was introduced in the early 1980s. It has the major effect of seriously ... -
Research in the quality of service delivery in public hospitals, Kenya
(Journal of Pharmacy and Biological sciences, 2015)The study reported in this paper purposed to establish the quality of service delivery in public hospitals in Kenya. The study assessed the quality of service delivery to malaria patients in wards for malaria patients in ... -
Resistance of Coffea arabica cv. Ruiru 11 tested with different isolates of Colletotrichum kahawae, the causal agent of coffee berry disease
(Springer Netherlands, 2001-08-01)Seven single conidia isolates of Colletotrichum kahawae varying in pathogenicity were used to inoculate hybrid progenies from 66 crosses ofCoffea arabica cv. Ruiru 11. The objective of this study was to investigate the ... -
Responses in dry matter production of NERICA to soil moisture stress
(CROP SCIENCE SOCIETY OF JAPAN, 2007)NERICA (new rice for Africa) developed by Africa Rice Centre (ARC) in West Africa has a reputation for high production under rainfed cultures. These genotypes have been widely adopted by farmers in West African countries ... -
Responses of ecosystem carbon dioxide fluxes to soil moisture fluctuations in a moist Kenyan savanna
(Cambridge University Press, 2010-11-01)act: Measurements were conducted within a fence-exclosure between February 2008 and July 2009 to investigate the influence of soil moisture on ecosystem CO2 fluxes in a Themeda irifl/idra-dominated grassland of a humid ... -
Responses of mango (Mangifera indica L.) root stock seedlings to water stress
(Asian Network for Scientific Information, 2007)The present studies were aimed at investigating the effect of different watering regimes on the gas exchange parameters (stomatal conductance, CO<sub>2</sub> assimilation and transpiration rates) and chlorophyll content ... -
Responses of slenderleaf rattlebox (Crotalaria ochroleuca) to water deficit
(2017)Water deficit affects plant growth and development thus affecting crop productivity. It is the major a biotic stress experienced in the vast semi arid and arid regions of Kenya and the world as a whole. Water deficit ... -
The role of wetlands in the changing ecophysiology and distribution of plant species: a comprehensive review
(2011)Wetlands are important ecosystems globally. Changes in plant species physiology, species composition, species distribution and phenology have occurred with changes and modifications of wetland ecosystems. This paper ... -
Root-Fusion Characteristic of Eucalyptus Trees Block Gully Development
(Scientific Research Publishing, 2013-08-28)Soil erosion by water resulting in gully formation is a common occurrence in western Kenya. Establishment of local and sustainable countermeasures to prevent gully development/expansion in western Kenya is an urgent issue. ... -
Roots spatial distribution and growth in bambara groundnuts (Vigna subterranea) and NERICA rice (Oryza sativa) intercrop system
(Asian Research Publishing Network (ARPN)., 2010)Intercropping offers advantages if well planned including improved soil fertility and yields. Bambara groundnuts have been shown to yield in low fertility soils and have been described as a complete food. NERICA rice has ... -
Salinity and temperature effects on CO2 assimilation in leaves of avocados.
(Academic Journals, 2010)Young avocado plants were cultured in a glasshouse and subjected to salt stress or were well watered at Maseno University between September 2003 and September 2004. Three-month-old avocado seedlings were grown in 4.5 L ... -
Sap Flow Dynamics and Responses to Grazing and Seasonal Changes in Soil Moisture for Acacia Ancistroclada and Comberatum Molle in a Kenyan Savanna
(Research Square, 2020-08-07)The Kenyan savanna, which is dominated by Acacia ancistroclada and Comberatum molle, has experienced notable changes in rainfall patterns and increased livestock grazing. A significant decrease in trees spread from 5 % to ... -
Seed dormancy and appropriate germination protocol for Vernonia galamensis (Asteraceae).
(Kenya Forestry Research Institute, 2009)ernonia galamensis (Cass.) Less., (Asteraceae) is a new potential industrial oil crop that originated in eastern and south-eastern parts of Ethiopia and is endemic primarily to East African countries. On a dry mass basis, ... -
A seedling inoculation test for screening Sesbania sesban for resistance to the seedling defoliator, Mesoplatys ochroptera
(Kluwer Academic Publishers, 2002-07-01)The seedling beetle Mesoplatys chroptera is a serious pest of Sesbania sesban and other Sesbania spp. that are important agroforestry species. Sesbania sesban was compared to Sesbania micrantha, Sesbania goetzi and ... -
Selection, design and implementation of economic instruments in the solid waste management sector in Kenya: The case of plastic bags
(University of Nairobi., 2005)The generation of solid waste has become an increasing environmental and public health problem everywhere in the world, but particularly in developing countries. The fast expansion of urban, agricultural and industrial ... -
Severity of Alternaria Leaf Spot and Seed Infection by Alternaria sesami (Kawamura) Mohanty and Behera, as Affected by Plant Age of Sesame (Sesamum indicum L.)
(Blackwell Publishing Ltd, 1999-07-01)Alternaria leaf spot incited by Alternaria sesami , was monitored to determine the effect of plant age on disease severity and seed infection by A. sesami in plots containing sesame accession SPS SIK 110 plants of five ...