Working Document Series Open Access Effects of phosphorus deficiency on secondary metabolites and African nightshade distribution in Kisii, Siaya and Kakamega counties, Kenya J. P. Gweyi Onyango · W. Musila · P. Nawiri · J. Ogembo Oyaro African indigenous vegetables form an integral part of the Kenyan diets, among the most commonly consumed being the African nightshade. These vegetables contain important phenolics that have medicinal values and good health attributes. The… RUF-34074 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Biofficacy of lion’s ear and African basil extracts in management of adult twospotted spider mite on french beans J. G. Nyaanga · S. O. Ochola · K. O. Ogayo · J. O. Ogendo +2 more Methanol extracts of Lion’s ear, Leonotis nepetifolia L. (LN) and African basil, Ocimum gratissimum L. (OG), were evaluated for their toxic and ovicidal effects against the female adult two-spotted spider mite, Tetranychus urticae Koch. La… RUF-34061 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Heavy metal distribution in soils of some urban and peri-urban horticultural farms in Botswana J. Agbenin · T. Mpuisang · T. Mubyana-John · L. C. Obuseng +1 more Despite the fact that there is high usage of agrochemicals and use of urban waste water for irrigation, the concentration of potentially toxic metals in urban and peri-urban agriculture (UPA) farms has not been widely investigated in Botsw… RUF-34051 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Inheritance of resistance to Brown Spot Disease in upland rice in Uganda J. Lamo · M.Marco Mwendo · M. Ochwo-Ssemakula Low yields in rice (Oryza sativa) are attributed by many factors including diseases which represent one of the main constraints. The Brown spot disease (caused by Helminthosporium oryzae) in most rice growing areas cause’s considerable los… RUF-34048 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Effect of organic and inorganic sources of nitrogen on growth, seed yield and oil content of sunflower grown in highly weathered soils in Morogoro - Tanzania G. Chemining’wa · J. Kinama · I.A. Mwahija · A. Nyambilila Sunflower contributes about 40% of total national cooking oil requirement, ranking as one of the most important cooking oil with very high nutritional value in Tanzania. However, its production per unit area ranges between 800 to 1100 kg/h… RUF-34044 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Farming characteristics in urban districts of Nairobi county - Kenya A.W. Kihurani · P.W. Masinde · J.B. Mukundi · J. N. Njenga Urban farming practitioners face challenges like lack of quality irrigation water, poorly decomposed manure, diverse inputs of unknown sources, unhealthy farm environment and abject poverty. All these contribute to production of unsafe foo… RUF-34041 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Epidemiology of Tomato Curly Stunt Virus in Mozambique C. Ecole · B. F. Francisco · A. M. Mondjana · B. A. Nhaulaho +2 more Tomato (Lycopersicon esculentum) has a great socio-economic importance in Mozambique, since it is one of the sources of income for many families. However, its continuous production throughout the year provides conditions for the overwinter… RUF-34036 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Selection for multiple disease resistance in bush snap bean lines developed in Kenya P. M. Kimani · M. M. Mulanya · R.D. Narla Production of snap beans (French beans, Phaseolus vulgaris L.) in Kenya is severely constrained by diseases. Use of fungicides increases cost of production, reduces profitability and competitiveness of snap bean in domestic and export mark… RUF-34035 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Role of Universities in development of improved crop varieties, seed production, dissemination and impacts: Case studies of dry, canning, snap and runner beans, pigeonpea and onions P. M. Kimani Mandates of universities in east, central and southern Africa have considerably changed from their traditional teaching and research roles, to greater active involvement in the development agenda of their countries, a phenomenon referred t… RUF-34029 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Breeding runner bean for grain yield, disease resistance and short-day adaptation in eastern Africa P. M. Kimani · M. M. Mulanya · R.D. Narla Although runner bean (Phaseolus coccineus L.), also known as butter bean, is grown in high altitudes of eastern Africa where common bean (Phaseolus vulgaris L) is adapted, its productivity is poor because no improved short-day varieties ar… RUF-34025 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access The use of rice and fish polyculture in rice fields to improve rice yields hence food security in Bunyala - Kenya F.W. Kariuki · A.N Leguuto Rice is an important food crop in Kenya’s drive to attain food security. However, its productivity remains low against an overall increase in national demand due to overdependence on rice monoculture leading to decline in soil fertility re… RUF-34024 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access A comparative evaluation of maturity indices of mango fruits produced in two contrasting agro-ecological zones of Kenya J. Ambuko · M. Hutchinson · J. Njuguna · L. Ouma +2 more Harvesting mango (Mangifera indica) fruits at the right stage for the destination market and use requires reliable maturity indices. There are various indices that are used to determine harvest maturity for mango fruits. However, differenc… RUF-34021 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Isolation and characterisation of Chilembwe and Sinda rock phosphate solubilising soil microorganisms A. P. Armstrong · G. Chilombo · E. A. Eckhardt · A. Mutiti Mweetwa +3 more The availability of native phosphorus in most Zambian agricultural soils is relatively low. This necessitates the use of organic and inorganic fertilizers for crop production. There are several deposits of rock phosphate in Zambia that can… RUF-34020 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Row covers for management of insect-vectored viral diseases of tomato in Uganda H. Jurua · J. Karungi · M.K.N. Ochwo-Ssemakula · P. Sseruwagi Tomato production in Uganda is constrained by among others use of low quality planting materials, non-availability of inputs, sub-optimum agronomic practices, pests and diseases. Studies have shown that viral diseases have quickly become a… RUF-34016 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Selection for short day adaptation in vegetable runner bean in Kenya P. M. Kimani · M. M. Mulanya Runner bean (Phaseolus coccineus L.) offers considerable potential as a high value vegetable and grain crop for domestic and export markets in eastern Africa. However, production and utilisation of vegetable runner beans in Kenya is severe… RUF-34006 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Estimating prevalence of brucellosis in livestock and assessment of knowledge, attitudes and practices of respective communities in baringo county, Kenya L.C. Bebora · S. Kiambi · P. Kitala · P.K. Kosgei +1 more Brucellosis is an infectious, contagious and important zoonotic disease caused by bacteria of genus Brucella. World Health Organization considers brucellosis the most spread zoonosis in the world. Brucellosis has been documented to be high… RUF-34003 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Assessment of pests incidence and their impact on yield of sweetpotato in Mozambique D. Cugala · I. Mugovo · L. Santos The sweetpotato (Ipomoea batatas L.) is important food and cash crop and is considered as one of the most important crop for food security in Mozambique. Sweetpotato is grown extensively by small scale households and mostly managed by wome… RUF-34001 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Local chicken production in northern Uganda: Breeding practices and flock productivity A. Kayitesi · D.R. Kugonza · H. Mulindwa · C. Nakkazi +1 more In Uganda, the local chicken population is estimated at 44 million and these chickens play an integral role in the smallholder farming systems. Contribution of local chicken in rural household economies is mainly limited by its low output … RUF-33992 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Growth characteristics of selected indigenous legumes for livestock feeds in Namibia L. Kaholongo · A. Kahumba · E. Lutaaya · I. Mpofu +1 more The study was conducted to evaluate the growth characteristics of seven (7) indigenous forage legumes in Namibia in comparison to lucerne as potential livestock fodder. A split-plot design was used with fertiliser level as the main factor … RUF-33984 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Does long-term low-rate organic and inorganic nitrogen management guarantee maize yield under semi-arid conditions of eastern Kenya? M. Oscar Kisaka · F.S. Mairura · M.W. Mucheru-Muna · D.N. Mugendi +2 more Drier parts of Embu County endure high atmospheric heat, prolonged dry spells, declining soil fertility and erratic rainfall. Integrated soil fertility management (ISFM) technologies have been developed, and tested, with standardized appli… RUF-33948 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Determinants of the non-timber forest resources conservation of the Falgore Game Reserve Kano, Nigeria G. Kironchi · A. Suleiman · M.S. Suleiman This study is designed to assess the determinants of non-timber forest resources conservation of the Falgore Game Reserve (FGR) Kano, Nigeria. Specifically the study seeks to determine the spatial temporal quantity of non-timber forest res… RUF-33945 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Assessment of the socio-economic impact of the invasive fruit fly Bactrocera invadens (Diptera:Tephritidae) in Mozambique D. Cugala · M. De Meyer · L. Jose · L. Santos Fruit flies are among the most important pests of fruits and vegetables in the world. The invasive fruit fly Bactrocera invadens (Diptera:Tephritidae) was first detected in Africa in 2003 in Kenya, has spread to at least 27 countries attac… RUF-33931 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Towards resilient and profitable family farming systems in Central Mozambique M. Hauser · F. Mazuze · J Onofre Rainde · D. Rodriguez +3 more This research improves our understanding of diversity across Mozambique’s family farming systems in terms of local agro-ecological potentials, existing market opportunities and production objectives as well as the household level resource … RUF-33930 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Identification of tomato varieties resistant to Tomato Curl Stunt Virus in Mozambique J. Bokossi · E. Chilembwe · C. Ecole · B. Filipe +5 more The importance of tomato (Lycopersicon esculentum) as source of food and income generation in Mozambique is threatened by proliferation of a viral disease called Tomato Curly Stunt virus (ToCSV) which belongs to the Geminiviridae Family (B… RUF-33922 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Characterisation of historical and projected climate of rice prone areas in South-Kivu province, DRC A. Katusabe Amoding · J.G.M. Majaliwa · I. Muhindo · B. Nkuba +1 more The nature of climate variability in South-Kivu is not yet well understood and how the impacts of climate variability affect agriculture, especially rice production has not been well documented. This study aimed therefore at characterizing… RUF-33921 2014 CC BY 4.0 11 Aug 2015
