Journal Articles: Recent submissions
Now showing items 681-700 of 931
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Demarcating day-light-length from temperature effects in PGMS rice using back tracking method.
(2014)Two near isogenic rice lines ZAU11S106 (Photoperiod sensitive genic male sterile) and ZAU11F121(a ZAU11S106 whose PGMS gene has undergone reverse mutation to become a non-PGMS) were used. These two lines were studied to ... -
Local and landscape effects on bee functional guilds in pigeon pea crops in Kenya
(Springer, 2015-07)Pollinators face many challenges within agricultural systems due to landscape changes and intensification which can affect resource availability that can impact pollination services. This paper examines pigeon pea pollination ... -
The effects of exchange rate liberalization in Kenya on French beans exports
(Pak Publishing Group, 2014)The adoption of a floating exchange rate system in Kenya was an effort to make it more aligned to the market determined equilibrium rate. However, there is limited empirical evidence that success has since been achieved ... -
Effects of Market Reforms on Irish Potato Price Volatility in Nyandarua District, Kenya
(2013)This paper evaluates the effects of market reform policies on the volatility of Irish potato prices in Kenya through an analysis of a 20 year monthly time series data set from Nyandarua district using an autoregressive ... -
Effects of Exchange Rate Volatility on French Beans Exports in Kenya
(Springer, 2014-01)In Kenya, exports of French beans are one of the leading foreign exchange earners. Nevertheless, the economic impacts of exchange rate volatility on French beans exports in Kenya are unclear. This paper evaluates the ... -
Comparative Trapping Efficiency to Characterize Bee Abundance, Diversity, and Community Composition in Apple Orchards
(Oxford University Press, 2015-07)Bees are important pollinators of numerous crops, and monitoring their abundance and diversity in commercial agricultural ecosystems is of increasing importance due to pollinator declines. In season-long field studies ... -
Students’ experiences of seeking injustice-induced help in a Mathematics classroom
(2012)In this paper, we describe the phenomenon of a need for help that comes about as a result of problematic classroom practices, as experienced by high school mathematics students. Through students’ experiences, we demonstrate ... -
Implementing Language-in- Education Policy in Multilingual Mathematics Classrooms: Pedagogical Implications
(2013)In this paper, we examine selected literature on classroom-based research to understand how students and teachers (re)negotiate the language of interaction in a mathematics classroom when the official medium of instruction ... -
Effect of decomposition intensity of incorporated chickpea manure on stability and saturated hydraulic conductivity of a clay loam and clay soil
(Academic Journals, 2011-03-04)The role of organic matter (OM) in soil aggregation and saturated hydraulic conductivity (Ksat) has long been recognised but their depedence on the intensity of decay is less studied. The objective of this study was to ... -
The Utility of Aerial Pan-Trapping for Assessing Insect Pollinators Across Vertical Strata
(2011)Insect pollinators provide a critical ecosystem service by pollinating many wild flowers and crops. It is therefore essential to be able to effectively survey and monitor pollinator communities across a range of habitats, ... -
Tea breaks: how flower visitors can benefit from unplanned floral buffer strips in a Tanzanian tea plantation
(Blackwell Publishing Ltd, 2013) -
Local management and landscape drivers of pollination and biological control services in a Kenyan agro-ecosystem
(Elsevier, 2011)Arthropods that have a direct impact on crop production (i.e. pests, natural enemies and pollinators) can be influenced by both local farm management and the context within which the fields occur in the wider landscape. ... -
A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems
(Blackwell Publishing Ltd, 2013)Bees provide essential pollination services that are potentially affected both by local farm management and the surrounding landscape. To better understand these different factors, we modelled the relative effects of ... -
Effect of tillage method and sowing time on phenology, yield and yield components of chickpea (Cicer arietinum L.) under semi-arid conditions in Kenya
(2010)Objective: To determine the phenology, dry matter yield, grain yield and yield components of chickpea under four tillage methods and three sowing times within a semi-arid area of Kenya. Methodology and results: Field ... -
Sorghum production for food security: A socioeconomic analysis of sorghum production in Nakuru County, Kenya
(Academic Journals, 2013-12-05)Kenya’s Vision 2030 identifies agriculture as one of the key sectors to deliver sustainable economic growth and improved livelihoods for the poor in the rural areas. However, the sector continues to face several endemic ... -
The diversity of rural livelihoods and their influence on soil fertility in agricultural systems of East Africa – A typology of smallholder farms
(2010)Technological interventions to address the problem of poor productivity of smallholder agricultural systems must be designed to target socially diverse and spatially heterogeneous farms and farming systems. This paper ... -
Effect of Reduced Tillage and Mineral Fertilizer Application on Maize and Soybean Productivity
(2012)Reduced tillage is said to be one of the potential ways to reverse land degradation and ultimately increase the productivity of degrading soils of Africa. We hypothesised that crop yield following a modest application of ... -
Effects of Zeolite X on Dissipation of Hexazinone from Agricultural Waste Waters in Western Kenya
(2013-10)Dissipation of hexazinone in Zeolite X treated wastewater followed pseudo first-order kinetics giving a calculated half-life of 41 days compared to a half-life of 144 days in untreated wastewater. The herbicide degraded ... -
Effects of Zeolites X and Y on the Degradation of Malathion in Water
(2013)The inclusion of both zeolites X and zeolite Y significantly affected the dissipation of malathion in water. In the fresh water, malathion degradation followed a pseudo-first order kinetics with concomitant half-life ... -
Hypoglycemic Activity of Some Kenyan Plants Traditionally used to Manage Diabetes Mellitus in Eastern Province
(2011)In this study five aqueous extracts; Bidens pilosa, Strychnos henningsii, Aspilia pluriseta, Catha edulis and Erythrina abyssinica were screened for anti-diabetic activity and their in vivo safety evaluated. The anti-diabetic ...
