Working Document Series Open Access Fungal contaminants and aflatoxins in maize from lower eastern region in Kenya S.P. Kuate · D. O. Mbuge · W.M. Muiru · S.T. Mwangi +1 more Aflatoxin outbreaks have been reported in the lower eastern region of Kenya since 1978. These outbreaks have caused a lot of concern as some have led to loss of lives. This study was conducted to assess the extent of fungal contaminants in… RUF-39156 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Use of medicinal plant extracts and light sensitization to inhibit conidia growth in aflatoxin producing Aspergillus flavus L.M. Njoki · S.A. Okoth · P.M. Wachira Fungal proliferation causing aflatoxin contamination has been on the rise in Africa due to the adverse changes in climate. Deaths and diseases like cancers have been detected in human beings and animals due to consumption of these toxigeni… RUF-39147 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Agronomic performance and carotenoid content of Kenyan yellow-fleshed cassava clones R. Edema · J. Kamau · P. Njenga · G. Ooko Vitamin A deficiency is common in Kenya, and is common among populations that depend on cassava as their main staple. Clonal evaluation of 324 locally developed yellow-fleshed cassava clones was carried out in two sites, Thika and Kiboko l… RUF-39137 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Spatial and temporal spread of maize lethal necrosis disease causing viruses and their vectors within the field K. Dora · D.W. Miano · D. Mukunya · R.M. Ngala Maize lethal necrosis disease (MLND) is a viral disease of maize resulting from co-infection of Maize chlorotic mottle virus (MCMV) and any cereal Potyvirus such as Sugarcane mosaic virus (SCMV), Maize dwarf mosaic virus (MDMV) or Wheat st… RUF-39133 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Soil properties and maize yields under tied ridging, fertilizer micro-dosing and different cropping systems in semi-arid regions of Kenya B.O. Danga · K. Kwena · J. Mugwe · N. Mwende In semi-arid parts of Kenya, the major threat to food security is declining soil fertility, inadequate and un-reliable rainfall. In order to minimize these challenges, there is need to adopt soil management practices that cope with low rai… RUF-39122 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Soybean (Glycine max) and maize (Zea mays) production as influenced by rhizobia inoculation and cropping systems in western Kenya C. Masso · E.M. Mutegi · R. Okalebo · A. Otinga +1 more The use of promiscuous varieties and commercial inoculants has been shown to increase soybean production and improve soil fertility. However, most cropping systems are characterized by indigenous bradyrhizobia whose populations are often l… RUF-39118 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Growing range grasses in mixed stands increase productivity and does not affect the nutritional quality and digestibility of the hay produced O.K. Koech The increasing pasture establishment under irrigation to bridge feed shortages as a result of seasonal variations has been reported in the Arid and Semi-Arid Lands (ASALs) of East Africa. The natural pastures have declined increasing need … RUF-39113 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Indigenous fungi with antagonistic potential against potato cyst nematodes in Kenya R. Kahuthia-Gathu · J.K. Musango · J.W. Waceke Potato (Solanum tuberosum), which is the second most important food crop in Kenya, has various production constraints including potato cyst nematodes (PCN). This nematode which was first reported in 2014 is now ranked highest. The main opt… RUF-39110 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Distribution and sourcing of fresh fruits and vegetables within Nairobi City County R. Mbeche · J.B. Mukundi Despite a rapidly transiting city, the operational nature of Nairobi City food system is unclear. A sample of retailers, collector agents at farm level, trader aggregators and wholesalers was obtained from survey sites within key markets i… RUF-39104 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access The currents status of Maize Lethal Necrotic Disease awareness and control in Bomet County, Kenya W. J. Kamau · P. N. Mathew · P.K. Muchemi · W. J. Mwangi +1 more The study aimed at determining the level of awareness about Maize Lethal Necrosis Disease in Bomet County in Kenya. Random sampling method was used to obtain a sample of respondents from a target household population of maize farmers. Stru… RUF-39097 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Enhancing climate resilience of cropping systems: A synopsis of research activities by crop scientists at University of Nairobi G.N. Chemining’wa · O.M. Kitonyo Climate change is associated with rising temperatures, elevated carbon dioxide, variable rainfall patterns and frequent droughts, reduced soil carbon and mineral nutrients, and increased influx of pests and diseases, in addition to adverse… RUF-39096 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Analysis of potato yield gap using aquacrop simulation Model E.C. Kipkorir · S. Kiptoo · C.K. Kiptum Water scarcity and food shortage worldwide is a major concern globally. In crop production, water stress affects yield if not managed properly. Solanum potato is the second most important food crop in Kenya after maize and is sensitive to … RUF-39086 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Acceptance of insects as an alternative protein source for poultry feeds in Kenya B. Kimutai Livestock feed prices in Kenya have been rising over the last decade with the increase in price being attributed to the cost of protein ingredients especially soybean and fish meal in the feed. Several interventions have been explored to r… RUF-39081 2018 CC BY 4.0 1 Mar 2021
Working Document Series Open Access Nutrient composition and phytochemical content of African nightshade (Solanum nigrum) edible berries E.H. Kamau · G.M. Kenji · J.M. Maina African nightshade (Solanum nigrum) is a green, indigenous leafy vegetable that grows in many parts of the world and its utilization can deliver significant nutrients and phytochemicals into the diet. It is among the indigenous vegetables … RUF-39076 2018 CC BY 4.0 1 Mar 2021
Journal articles Open Access Effects of compound fertilizer and canola green manure on nutrient use efficiency, growth and yield of potato tuber (Solanum tuberosum L.) in Nakuru, Kenya M. K. Charimbu · N. Iraboneye · N.W. Mungai Unbalanced fertilization is a problem affecting potato production in Kenya, where continuous use of nitrogen-phosphorus fertilizer (diammonium phosphate: DAP) has led to depletion of other macro and micronutrients. Hence, the need to asses… RUF-39065 2020 CC BY 4.0 26 Feb 2021
Journal articles Open Access Farmer-preferred learning methods and utilised teaching approaches by Egerton University, Kenya N.W. Mungai · M. Mutuku · E. O. Ondiege Universities are centres of frontier knowledge and skills, with the capacity to transform communities,when appropriately and adequately transmitted to users. The aim of this paper was to compare farmer-preferred learning methods and those … RUF-39062 2020 CC BY 4.0 26 Feb 2021
Working Document Series Open Access Soil analysis for fertilizer recommendation in Kenya: A review A. Galgallo · M. Gatari · D. M. Miano · K.D. Shepherd Agriculture is key to Kenya’s economy and food production but the per capita food production has been declining. Soil nutrient depletion has been identified as one of the major causes of the declining food production. However, use of chemi… RUF-39050 2018 CC BY 4.0 25 Feb 2021
Working Document Series Open Access Assessment of morphological traits of coffee used in determining the performance of Arabusta hybrids generated from crosses between the tetraploid Robusta and Arabica coffee J.J. Cheserek · N. Kahiu · J. Muthomi Coffee is one of the most important commodities in the world being traded second after oil. One of the objectives of coffee breeding programs is to select for good quality coffee with high yields. The aim of this study was to determine var… RUF-39046 2018 CC BY 4.0 25 Feb 2021
Working Document Series Open Access Incorporation of sweetpotatoes into diets of children aged 6-59 months in Trans-Mara East Sub-County, Narok County, Kenya G.O. Abong · M.C. Chepkwony · S. Ngala Sweetpotato versatility, drought tolerance, resistance to diseases and its great contribution to food security makes it an important staple food in the developing countries. Poor soil productivity, insufficient soil moisture, diseases, pes… RUF-39044 2018 CC BY 4.0 25 Feb 2021
Working Document Series Open Access Quality of wheat seed used by farmers in Nakuru County S.N. Buyela · J.W. Muthomi · A. W. Mwang’ombe · P. Njau +1 more Production of wheat in Kenya has been below its potential and this has been attributed to recycling of seed, among other factors. Recycled seed may harbour seed borne pathogens which may accumulate over time resulting in increased disease … RUF-39039 2018 CC BY 4.0 25 Feb 2021
Working Document Series Open Access Evaluation of suppressive potential of selected plant species against Phytophthora infestans in vitro S.O. Agong · R. Kahuthia-Gathu · M. Mwangi · J.W. Waceke Globally, Phytophthora infestans causes annual potato losses estimated at over $6 billion with fungicides alone accounting for over $1 billion. In Kenya, potato yield loss estimates reach 119,500 tons annually. Several fungicides recommend… RUF-39013 2018 CC BY 4.0 25 Feb 2021
Journal articles Open Access Determinants of Porter’s competitive strategy utilization among agro-dealers in Kenya H. K. Bett · E. W. Gathungu · D. O. Okello · E. I. Wanyonyi Utilization of Porter’s competitive strategies is considered a crucial tactic in enhancing the competitiveness of small-scale agro-dealers in developing countries. The dynamic nature of the agro-dealer business environment further necessit… RUF-38984 2020 CC BY 4.0 14 Feb 2021
Journal articles Open Access Relative palatability and preference by red Maasai sheep offered brachiaria and Rhodes grass hay supplemented with calliandra leaves in Kenya M. K. Ambula · R. S. Kenana · P. A. Onjoro A study was conducted to evaluate the effect on palatability and preference of supplementing Brachiaria (Brachiaria ruziziensis) hay and Rhodes (Chloris gayana) hay with different levels of Calliandra (Calliandra calothyrsus) leaves on Red… RUF-38979 2020 CC BY 4.0 14 Feb 2021
Working Document Series Open Access Financing higher education in Africa: The case of Kenya A. Kande · E. J. Mukhwana · H. Nandokha · J. Too Demand for tertiary education in Kenya has significantly increased and continues to swell against the backdrop of insufficient funding thus affecting the quality of teaching and learning. The population of the tertiary education age group … RUF-38961 2020 CC BY 4.0 8 Feb 2021
Working Document Series Open Access Financing higher education in Africa: The case of Kenya A. Kande · E. J. Mukhwana · H. Nandokha · J. Too Demand for tertiary education in Kenya has significantly increased and continues to swell against the backdrop of insufficient funding thus affecting the quality of teaching and learning. The population of the tertiary education age group … RUF-38960 2020 CC BY 4.0 8 Feb 2021
