Working Document Series Open Access Manipulating the soil ecosystem for improved management of soil-borne pathogens in small holder ‘greenhouse’ tomato production in Kenya D. Chepkoech · D. Fundi · J. Mbaka · L.K. Murungi +2 more The livelihoods of about 40-60% small and medium scale farmers in Kenya is dependent on tomato (Solanum lycopersicum) production, farmed mainly under open field conditions and/or until recently under modified high tunnels popularly known a… RUF-36502 2016 CC BY 4.0 22 Nov 2016
Journal articles Open Access Resistance breeding strategy for Stenocarpella maydis and Fusarium graminearum cob rots in tropical maize G. Asea · Paul T. Gibson · P. Okori · L. Tembo Maize cob rot caused by Fusarium graminearum and Stenocarpella maydis affects grain yield and quality. The objective of this study was to investigate the appropriateness of multiple infection as a selection and breeding strategy for multip… RUF-35889 2012 CC BY 4.0 3 Feb 2016
Journal articles Open Access Quantitative trait loci for resistance to Stenocarpella maydis and Fusarium graminearum cob rots in tropical maize G. Asea · P. Gibson · P. Okori · L. Tembo Stenocarpella maydis and Fusarium graminearum are the predominant species causing maize (Zea mays L.) cob rots in the tropics and sub-Saharan Africa. Developing varieties resistant to cob rots is an alternative strategy that is practical a… RUF-35888 2014 CC BY 4.0 3 Feb 2016
Journal articles Open Access Resistance breeding strategy for Stenocarpella maydis and Fusarium graminearum cob rots in tropical maize G. Asea · Paul T. Gibson · Patrick Okori · L. Tembo Maize cob rot caused by Fusarium graminearum and Stenocarpella maydis affects grain yield and quality. The objective of this study was to investigate the appropriateness of multiple infection as a selection and breeding strategy for multip… RUF-35626 2012 CC BY 4.0 7 Oct 2015
Theses & Dissertations Open Access Diversity of Colletotrichum lindemuthianum and reaction of common bean germplasm to anthracnose disease J.B. Mwesigwa The production of common bean (Phaseolus vulgaris L.) in Uganda is largely constrained by bean anthracnose (Colletotrichum lindemuthianum (Sacc.and Magn.), among other diseases. This pathogen is capable of causing total crop loss on suscep… RUF-35477 2009 CC BY 4.0 28 Sep 2015
Working Document Series Open Access Differential gene expression in nematode-susceptible and -tolerant East African highland bananas following inoculation with non-pathogenic Fusarium oxysporum endophytes D. Coyne · T. Dubois · P. Paparu · A. Viljoen Endophytic non-pathogenic Fusarium oxysporum isolates have been shown to reduce Radopholus similis populations through induced resistance. We used cDNA-AFLPs to identify genes induced in banana plants susceptible (cv Nabusa, AAA-EA) and to… RUF-35131 2010 CC BY 4.0 16 Sep 2015
Working Document Series Open Access Inheritance of resistance to bacterial blight and implication for rice improvement in Uganda G. Asea · R. Edema · P. Gibson · I. Habarurema +1 more Bacterial blight caused by Xanthomonas oryzae pv.oryzae, is a destructive disease of rice worldwide. Resistant varieties are the best option to avert the disease. Thirty resistance genes identified face a wide genetic diversity exhibited b… RUF-34618 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Studies on the etiology, epidemiology and management of dieback disease of passion fruit in Kenya R. Gathu · N. Kori · J. Mbaka · M. Mwangi +1 more Passion fruit (Passiflora spp.) is an important cash crop in Kenya. In the recent past, diseases have increasingly reduced its production with yield losses ranging from 50 – 100%. Dieback is a recently emerged disease that is highly virule… RUF-34598 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Biotic constraints to banana production in Eastern and Central Provinces of Kenya R. Gathu · J. Mbaka · R. Muasya · Maina Mwangi +1 more Banana is an important crop whose production faces major challenges, especially pests and diseases. A banana pests survey was carried out in Eastern and Central Provinces of Kenya. Results showed Fusarium wilt as the most widespread diseas… RUF-34571 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access Prevalence of bean anthracnose in Zambia and diversity of Colletotrichum lindemuthianum in Southern Africa P. Kachapulula · M. Mwala · P. Okori Prevalence of bean anthracnose, caused by Colletotrichum lindemuthianum was assessed in four agro-ecologies in Zambia. Subsequently, fungal isolates were tested for race specifically involving race differentials and DNA analysis using Simp… RUF-34555 2010 CC BY 4.0 4 Sep 2015
Working Document Series Open Access Developing a broad soybean germplasm base and durable resistance to soybean rust disease in Uganda R. Kawuki · P. Tukamuhabwa · G. Tusiime Soybean rust, Phakopsora pachyrhizi is a major threat to soybean production world-wide. In Uganda breeding for soybean rust resistance has taken priority over other objectives since the first disease rust outbreak in 1996. Three resistant … RUF-34535 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Assessing effectiveness of macropropagation technology to produce healthy seedlings of banana varieties with high market demand in Eastern and Central provinces, Kenya R. Gathu · N. Kori · J. Mbaka · R. Muasya +2 more Banana is an important food and cash crop in Kenya. However, its cultivation is hindered by scarcity of seedlings, pests and diseases, among other factors. Naturally regenerated seedlings which most farmers rely on are likely to carry pest… RUF-34508 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Assessing the efficacy of pyramided genes in conferring dual and durable resistance to bean anthracnose and root rot M. Kiryowa · C. Mukankusi · S. Nkalubo · H. Talwana +1 more Bean anthracnose (Colletotricum lindemuthianum) and root rots are important diseases of beans in Uganda. The coexistence of both diseases on the crop in farmers’ fields and the ability of these pathogens to overcome incorporated resistance… RUF-34465 2010 CC BY 4.0 21 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 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 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
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 Potential Application of Natural Variability of Arabidopsis Thaliana Accessions in Genomics of Xanthomonas Campestris pv Pusacearum M.R. Grant · J. Kubiriba · G. Tusiime · A. Wasukira The banana Xanthomonas wilt epidemic in the Great Lake region of Africa has destroyed banana and is affecting livelihoods of thousands of people who depend on the crop. Currently, there are no banana varieties resistant to the disease. Gen… RUF-33007 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Phakopsora Pachyrhizi Diversity and Rust Resistance in Soybean Genotypes in Uganda T. Obua · P. Tukamuhabwa · G. Tusiime The objectives of this study were twofold: (i) to validate use of SSR markers in assessing Phakopsora pachyrhizi diversity in Uganda and (ii) to assess elite soybean lines for resistance to rust in diverse locations in Uganda. A dendogram … RUF-32971 2012 CC BY 4.0 20 May 2014
Working Document Series Open Access Enhancing resistance to angular leaf spot of common bean in Uganda G. Ddamulira · R. Edema · C. Mukankusi · G. Ochwo-Ssemakula +1 more Angular leaf spot (ALS) is an important disease of common bean in Uganda. The presence of resistance sources with narrow adaptability coupled with pathogen’s variability have greatly undermined previous breeding efforts leading to severe y… RUF-32461 2012 CC BY 4.0 16 May 2014
Working Document Series Open Access Diversity of Pathogens and Symptoms Associated with Dieback on Passion Fruit in Kenya R.K. Gathu · J. Mbaka · R. Muasya · M. Mwangi +1 more Passion fruit is very important in Kenya as a source of nutrition and income. Currently, local demand for the fruit highly exceeds its supply. Diseases and pests are the most important constraints to passion fruit production. Among diseas… RUF-32057 2012 CC BY 4.0 13 May 2014
Working Document Series Open Access Effectiveness of Macropropagation Technology in Production of Disease Free Banana Seedlings in Central and Eastern Kenya J. Mbaka · R. Muasya · M. Mwangi · Njau Njeri Banana (Musa spp.) is one of the most important food crops that contribute to the food security of the majority small holders in Kenya. However, due to diseases, banana production has not reached its full potential. Fusarium wilt caused by… RUF-31548 2012 CC BY 4.0 7 Oct 2013
Journal articles Open Access Evaluating Genetic Association between Fusarium and Pythium Root Rots Resistances in the Bean Genotype RWR 719 P.O. Ongom Resistance to Fusarium root rot (Fusarium solani f.s.p phaseoli) has been reported in common bean (Phaseolus vulgaris L.) sources and is usually associated with Pythium root rot resistance. Pythium root rot (Pythium ultimum var ultimum) re… RUF-31427 2012 CC BY 4.0 28 Sep 2013
