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 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 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 In vitro evaluation of Leonotis nepetifolia L. and Ocimum gratissimum L. plant extracts against Colletotrichum lindemuthianum J. G. Nyaanga · S. O. Ochola · K. O. Ogayo · J. O. Ogendo +2 more The potential of crude plant extracts as antimicrobial agents has been demonstrated both in animal and plant health. Extracts with potential for control of plant pathogens such as Colletotrichum lindemuthianum (causal agent for bean anthro… RUF-34059 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Aphid transmission and alternate hosts of Passiflora chlorotic mottle virus in Uganda J. Karungi · M.N. Nantale · M. Ochwo-Ssemakula · P. Sseruwagi This research established aphid vectors and alternate hosts of Passiflora chlorotic mottle virus in Uganda. Aphids and host plants were collected from farmers’ fields in major passion fruit growing districts in Uganda. Transmission tests w… RUF-34058 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 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 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 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 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 Developing ecological management strategies for virus diseases of tomato in Uganda S. Ahabwe · H. Jurua · J. Karungi · M.K.N. Ochwo-Ssemakula +1 more Tomato (Lycoperscum esculentum) is one of the priority crops considered to drive development and food security in Uganda. However, severe levels of viral diseases have been found to constrain productivity in Uganda: A survey found mean inc… RUF-33944 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Selection for pod quality, pod yield and disease resistance in climbing snap beans J. J. Cheptoo · P. M. Kimani · R.D. Narla Although climbing snap bean have the potential of increasing productivity and competitiveness in domestic and export markets, suitable varieties with market demanded pod quality characteristics and preferred agronomic traits are not availa… RUF-33885 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Pod quality, pod yield and disease resistance of new bush snap bean lines in Kenya J. J. Cheptoo · P. M. Kimani · R.D. Narla This study was conducted at Mwea and Embu where twenty F6.7 lines selected from 31 bulk populations were evaluated for reaction to diseases, pod quality and pod yield in onfarm trials during the 2013 long rain and short rain seasons. Disea… RUF-33881 2014 CC BY 4.0 11 Aug 2015
Working Document Series Open Access Components of resistance that reduce the rate of blast epidemic in GULU-E finger millet variety of northern Uganda J. C. Aru · P. Okori · N. Wanyera There is a large demand for finger millet in East Africa, which is produced in the lake region countries of Uganda, Kenya, Tanzania, and Rwanda among others. In Uganda, finger millet is second only to maize as a major cereal crop, and occu… RUF-33826 2014 CC BY 4.0 10 Aug 2015
Working Document Series Open Access Sudanese Withania somnifera: a potential control agent for plant microorganisms E. A. Adil Bala · R. Delorme · P-H. Ducrot · J. Einhorn +4 more For centuries plants have been used throughout the world as pesticides, drugs and remedies for various diseases. However, pesticides and drugs in general, tend to be very expensive particularly so for the developing countries. Comparative … RUF-33804 2014 CC BY 4.0 10 Aug 2015
Journal articles Open Access RNAi-mediated resistance to Cassava brown streak Uganda virus in transgenic cassava Titus Alicai · Basavaraj Bagewadi · Claude M. Fauquet · Eliana Gaitan-Solis +5 more Cassava brown streak disease (CBSD), caused by Cassava brown streak Uganda virus (CBSUV) and Cassava brown streak virus (CBSV), is of new epidemic importance to cassava (Manihot esculenta Crantz) production in East Africa, and an emerging … RUF-33713 2011 CC BY 4.0 22 May 2015
Journal articles Open Access Efficient transmission of cassava brown streak disease viral pathogens by chip bud grafting Titus Alicai · Getu Beyene · Claude M. Fauquet · Nigel J. Taylor +2 more Techniques to study plant viral diseases under controlled growth conditions are required to fully understand their biology and investigate host resistance. Cassava brown streak disease (CBSD) presents a major threat to cassava production i… RUF-33703 2013 CC BY 4.0 22 May 2015
Journal articles Open Access Stability of resistance to cassava brown streak disease in major agro-ecologies of Uganda T. Alicai · Y. Baguma · A. Bua · P. Gibson +7 more RUF-33670 2015 CC BY 4.0 15 Apr 2015
Journal articles Open Access Identification of new sources of resistance to angular leaf spot among Uganda common bean landraces G. Ddamulira · R. Edema · P. Gepts · C. Mukankusi +2 more Breeding for resistance to Angular Leaf spot (ALS), a fungal disease caused by Pseudocercospora griseola (Sacc), is faced with a challenge of the existence of a few resistance sources that are exotic and not well adapted to environmental c… RUF-33652 2014 CC BY 4.0 14 Apr 2015
Journal articles Open Access Distribution and Variability of Pseudocercospora griseola in Uganda G. Ddamulira Pseudocercospora griseola the casual pathogen for angular leaf spot (ALS) on common bean (Phaseolus vulgaris) is highly variable with many different races occurring in different agro-ecological zones. Therefore, for an effective breeding p… RUF-33649 2014 CC BY 4.0 14 Apr 2015
Working Document Series Open Access Invasive Bracken Fern (Pteridium Aquilinium L. Kuhn): A Potential Risk to the Production of Legume Crops in Western Tanzania F.M. Bagarama · A.E. Majule · E. Shenkalwa This research established the risks posed to legume crop production by invasion of the degraded agricultural lands in western Tanzania by the bracken fern (Pteridium aquilinium). The test crops included the legumes beans (Phaseolus vulgari… RUF-32897 CC BY 4.0 20 May 2014
Working Document Series Open Access Maize streak virus (MSV) diversity in Uganda and the assessment of gene silencing as a tool for development of resistance to MSV B.E. Owor · D.M. Shepherd · J.A. Thompson Through an extensive survey conducted in all maize-growing regions in Uganda as well as the application of gene silencing to develop a novel disease control option for maize streak disease, the diversity of Maize streak virus (MSV) in diff… RUF-32561 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 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
