Working Document Series Open Access Conservation Agriculture effects on earthworm populations in Western Kenya and Eastern Uganda soils D. Ashilenje · W. N’getich · J. Norton · U. Norton +7 more Conventional cultivation in Western Kenya and Eastern Uganda over the years has resulted into decline in soil quality and food crop production. Studying soil biodiversity under Conservation Agriculture production systems (CAPS) will help u… RUF-34089 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Role of agronomic practices on the occurrence of Fusarium head blight of wheat C. Mutegi · J. Muthomi · R. Narla · O. Okumu +1 more Fusarium head blight is a disease of small grain cereals that reduces yield and causes mycotoxin contamination. The role of agronomic practices on the occurrence of wheat agronomic practices was studied. In the experiment, a survey to dete… RUF-34088 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Pesticide use for management of aphids and viral diseases in passion fruit J. Karungi · M. Ochwo-Ssemakula · A. Olango · P. Sseruwagi Passionfruit viral pathogens limit passionfruit production and are non-persistently transmitted by aphid vectors, the diseases can reduce orchard life span to only a year resulting to 100% yield loss. 50-100% loss due to biotic stresses ha… RUF-34086 2014 CC BY 4.0 13 Aug 2015
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 Combining ability and gene action in a diallel cross of eight sesame genotypes P. Gibson · W Okello-Anyanga · P.R. Rubaihayo · P. Tukamuhabwa An 8 x 8 diallel cross mating design with the parents and F1s excluding the reciprocals was used to estimate gene action and combining ability analysis for yield and some yield components in sesame (Sesamum indicum). These genotypes were e… RUF-34073 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Breeding for common bean rust in Uganda S. Nkalubo · B. A. Odogwu · P. Rubaihayo Rust caused by the fungi Uromyces appendiculatus is considered as one of the most variable pathogens documented world-wide. In Uganda, rust has been identified as an emerging common bean disease and this has contributed to its being given … RUF-34067 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 Role of soil and crop residues as sources of inoculum for Fusarium head blight of wheat C.K. Mutegi · J.W. Muthomi · N.K. Njeru · J.M. Wagacha A field survey was carried out in Narok County, Kenya, at hard dough growth stage (GS 65- 69) during the 2013 cropping season and sampling done in 51 wheat farms in different agroecological zones. Samples of soil and crop residues were col… RUF-34060 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 Evaluation of the repellent effects of four chemicals in the control of red-billed in rice in chókwè irrigation scheme T. F. Chiconela · A. K. Ngazero Red-billed (Quelea quelea) is one of the most damaging pests of rice in Mozambique. For its control, smallholder farmers rely on different frightening techniques to scare birds from their crops. Apart from providing a temporary relief, thi… RUF-34026 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 Seed-borne fungi of chilli pepper in the Coastal savannah zone of the central region of Ghana E. Afutu · O-A. Danquah · Y. Opoku-Asiamah Many chilli pepper (Capsicum frutescens) growers in the region have moved from chilli cultivation to other crops due to the continuous decline in yields as a result of disease problems, of which fruit rot is paramount. The study was carrie… RUF-34004 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
