Working Document Series Open Access Developing Ecological Management Strategies for the Aphid Vectored Cucumber Mosaic Virus on Tomato in Uganda S. Ahabwe · H. Jurua · J. Karungi · M.K.N. Ochwo-Ssemakula +1 more This study aims to develop safe and affordable management strategies for cucumber mosaic virus (CMV) on tomato and the aphids that vector the disease as a strategy to rejuvenate and increase yields of the crop at the small scale levels. Th… RUF-32933 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Influence of Number of Days from Planting to Harvest on Growth, Development, Stage of Maturity and Nutritional Value of Three Vegetable Soybean Cultivars in Zimbabwe A.T. Chikoshana · Z.A. Chiteka · J.S. Tichagwa A study was carried out in the 2008/09 season at Rattray Arnold Research Station in Zimbabwe, to determine the optimum days to harvest for three vegetable soybean varieties, SC Edamame 1, Santa, and Siesta. The experimental design was a ra… RUF-32925 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Outcomes and Performance of Rwanda Agricultural Board Employees Trained by RUFORUM A. Cyamweshi Rusanganwa This paper describes outcomes of a capacity development effort undertaken by the Regional Universities Forum for Capacity Building in Agriculture (RUFORUM), in collaboration with the Rwanda Government, the Forum for Agricultural Research i… RUF-32906 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Using Crotalaria Species for the Management of Root-knot Nematodes of Vegetables in Western Kenya H.K. Cheruiyot · A.K. Kipkoech · Njira Njira · J.O. Ochuodho +1 more Vegetable production western Kenya is constrained by soilborne pathogens including plant-parasitic nematodes. Almost all vegetable production fields in are infested with root-knot nematodes. There is therefore need to design measures for s… RUF-32903 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access The effect of gypsum and NPK fertiliser on groundnut performance in Western Tanzania F.M. Bagarama · Z.P. Matata · E. Shenkalwa This study was carried out to determine the effect of amending soil with gypsum rich material on the performance of groundnuts (Arachis hypogea L.) grown in low fertile sandy textured soil in the miombo woodland ecosystem, western Tanzania… RUF-32893 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Effect of Different Drip Irrigation Regimes on Growth, yield and Yield Components of Banana cv. Grand Nain Under Gizera Condition, Sudan B.A. Ahmed Al-Khalifa · M.I. Ihsan · A.A. Mohammed This study was conducted to investigate the effect of different water regimes applied by drip irrigation on growth and yield of banana cv. Grand Nain in Gizera State. Five different irrigation regimes were applied. These were 40%, 60%, 80%… RUF-32876 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Effects of Botanical Insecticides on the Egg Parasitoid Trichogramma Cacoeciae Marchal (Hym. Trichogrammatidae) H. Abdelgader This study was carried out to test the effect of the botanicals azadrichtine and Quassin on the parasitoid Trichogramma cacoeciae. For each of these, 2 formulatons were used i.e., Neemazal T/s Blank and Celaflor for azadrichtine and Alcohl… RUF-32871 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Food type preference, Breeding Seasonality and size at first Maturity of Synodontis njassae of Southeast arm of Lake Malawi K.M. Kamtambe · E.W. Kaunda · F. Maguza-Tembo · A. Msukwa The food type preferencein the southeast arm of Lake Malawi was studied. Frequency of occurrence, gravimetric, volumetric and index of relative importance was used to assess food preference. It was found that S. njassae is an omnivore, con… RUF-32808 2012 CC BY 4.0 19 May 2014
Working Document Series Open Access Speargrass as a Soil Fertility Indicator along a Deforestation Chronosquence A.K. Amoding · M. Karuhanga-Beraho · S. Kiconco · K. Senkosi +1 more This study estimated the time taken for speargrass (Imperata cylindrica) to occur on arable fields along a deforestation chronosquence; established the effect of burning on soil properties and determined the reliability of speargrass as a … RUF-32750 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Determination of sugarcane yield advantages of Mycorrhiza inoculants on Ferralsols S.O. Kibirango · C.L. Kizza · J.G.M. Majaliwa · E. Sebuliba +1 more Sugar cane (Saccharum officinarum L.) is the source of sugar in all tropical and subtropical countries of the world. Understanding the performance of sugarcane in Uganda is therefore vital in light of the new challenges for the development… RUF-32743 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Effects of FarmYard Manure and Mineral Fertilisers on Maize Yield and Soil Properties in two Districts of Southern Rwanda B.E. Mochoge · I. Munyabarenzi · L. Nabahungu Agriculture in Rwanda is characterised by low productivity due to decline in soil fertility. This is mainly attributed to the mining of nutrients due to continuous cropping without external addition of adequate nutrients coupled with small… RUF-32726 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Characterisation of Vermiculites from the Neoproterozoic Mozambique Belt of Tanzania for Agricultural Applications S. Hillier · E.M.M. Marwa · A.A. Meharg · C.M. Rice The study assessed the mineral phases and properties of five Tanzanian vermiculites in response to the temperature used to expand them with respect to their potential suitability for agricultural applications. One sample from Palabora Mine… RUF-32700 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Effectiveness of White Lupin (Lupinus albus) and Chickpea (Cicer arietinum ) in Enhancing Phosphorus Release from Rock Phosphate J.J. Lelei · R.N. Onwonga · J.P. Ouma Smallholder farming systems are characterised by application of suboptimal rates or non utilisation of inorganic fertilisers due to their exorbitant prices vis-à-vis low financial return from crops. Minjingu rock phosphate (MPR) would be a… RUF-32687 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Predicting tef Yield using AquaCrop Model Under Various Water Availability Regimes: A case study in Northern Ethiopia Alemie Araya · S. Habtu · Haileselassie Hailay Tef is one of the most important food crops grown in northern Ethiopia. This region is severely affected by drought. To continue producing the crop, it is necessary improve efficient use of water by tef within the context of climate variab… RUF-32671 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Arbuscular Mycorrhiza and Water and Nutrient Supply Differently Impact Seedling Performance of Acquisitive and Conservative Dry Woodland Species Frans Bongers · Birhane Emiru · Gebrehiwot Kindeya · T.W. Kuyper +1 more Arbuscular mycorrhizal (AM) fungi are known to increase seedling survival and performance through enhancement of nutrient and water uptake. Acacia etbaica, Acacia senegal and Boswellia papyrifera dominate large areas in African drylands. W… RUF-32661 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access High Frequency Adventitious Root and Shoot Regeneration in Recalcitrant Sweet Potato Cultivars M. Ghislain · A. Kiggundu · S.B. Mukasa · A. Sefasi +1 more resistance to weevils through conventional hybridisation has been limited by the lack of resistance sources in the sweetpotato germplasm. The aim of this study was to investigate induction of adventitious shoots which would facilitate gene… RUF-32574 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Impact of transgenic sweet potato on non-target species M. Ghislain · W.J. Moar · S.B. Mukasa · B. Odongo +2 more Sweetpotato is affected by the sweetpotato weevil (Cylas spp.) which caused immense tuber yield loss in many sub-Saharan Africa countries. Management of this pest is still difficult. The International Potato Centre has introduced insectici… RUF-32568 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Vegetative Propagation of Vitellaria Paradoxa by Stem Cuttings: Effects of Rooting Substrate and Planting Technique M. Malinga · M. Okao · C.A. Okia A study to evaluate the effects of rooting substrate and planting techniques on the rooting of Vitellaria paradoxa stem cuttings is being conducted at Ngetta Zonal Agricultural Research and Development Institute (Lira district-Northern Uga… RUF-32557 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Inheritance of Phosphorus use Efficiency and Resistance to Anthracnose in Selected Sorghum Genotypes Grown in the Acid Soils of Western Kenya S. Gudu · A. Nyambok · P. Okori The acid soils of Western Kenya where most of the sorghum is grown have very low available phosphorus, and thus cannot support optimal sorghum productivity. In addition, foliar anthracnose (Colletotrichum sublineolum L.) also reduces sorgh… RUF-32546 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Mechanisms of Resistance in Tropical Maize Inbred Lines to Spotted Stem Borer (Chilo Partellus) S.N. Mugo · S.W. Munyiri · J.K. Mwololo · P. Okori +1 more This study examined the mechanisms of stem borer resistance in CIMMYT tropical inbred maize. Kenya is a producer of maize, but cannot satisfy its domestic needs. The maize stalk borers are among the production constraints that are responsi… RUF-32536 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Inheritance of Resistance to Rice Yellow Mottle Virus in Interspecific and Intraspecific Rice in Uganda R. Edema · P. Gibson · J. Lamo · E. Munganyinka Rice Yellow Mottle Virus sobemovirus (RYMV) has been noticed as major constraint of both upland and lowland rice. It is highly infectious, variable and several resistance-breaking strains have been identified. The effective control was mai… RUF-32530 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Mass propagation of selected papaya planting materials through shoot tip culture in Kenya A.W. Kihurani · E.G. Mamati · N.N. Mumo · F.K.R. Wanzala The objective of this study was to optimise media conditions in order to develop an efficient plantlet regeneration system of papaya planting materials. Twelve combinations of different levels of BAP (0.1, 0.3, 0.5 & 0.7mg/L) and NAA (… RUF-32525 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Development of Fusarium Root Rot Resistant Ideotypes in Common Bean C. Mukankusi · J. Obala The study is aiming at developing a superior breeding parent for Fusarium root rot resistance through pyramiding non-allelic resistance genes from five different parents. The rationale is to accumulate and fix resistance quantitative trait… RUF-32520 CC BY 4.0 17 May 2014
Working Document Series Open Access Screening of Rice Varieties for their Weed Competitiveness A. Ahanchede · W. Bonou · Y.D. Moukoumbi · M. Sie +2 more Weed competition is a major constraint in rice production systems in Africa. This study was conducted at the Africa Rice Experimental Station in Benin in the dry and rainy seasons to screen rice varieties for weed competitiveness. The expe… RUF-32511 2012 CC BY 4.0 17 May 2014
Working Document Series Open Access Genetic Analysis of Tropical Maize Inbreds and Hybrids for Grain Yield and Traits Associated with Drought Tolerance P. Gibson · C. Magorokosho · X. Mhike · P. Okori Drought tolerance is a complex trait, hence genetic improvement of this trait in maize requires indirect selection methods based on highly heritable traits that correlate strongly with grain yield. This study aimed at determining the modes… RUF-32504 2012 CC BY 4.0 17 May 2014
