Journal articles Open Access Detection, isolation and baseline characterization of indigenous PhlD+ fluorescent Pseudomonas species for the control of bean root rot and coffee wilt disease in Uganda R. Edema · S. N. Kamenya Fluorescent Pseudomonas spp. which produces antibiotics such as 2,4-diacetylphloroglucinol (DAPG/phl) have biocontrol activity against many important soil-borne fungal pathogens. We isolated several Pseudomonas spp. carrying genes for DAPG… RUF-40833 2021 CC BY 4.0 2 Feb 2024
Working Document Series Open Access Report on the implementation of the RUFORUM Post-Doctoral Fellowship: Enhancing crop productivity and household food security among smallholder farmers in Zimbabwe J.T. Rugare Eliminating hunger and food insecurity is top on Africa’s development Agenda because it is perceived to be a key factor in promoting economic growth. Africa continues to experience food shortages due to a mismatch between crop productivity… RUF-40813 2019 CC BY 4.0 22 Nov 2023
Working Document Series Open Access Economic assessment of factors influencing the magnitude of losses due to fall armyworm: The case of maize infestation O. C. Omwoyo Maize (Zea mays) is a principal staple crop in Kenya, largely grown under rain-fed agriculture. Its production has been coupled with numerous constraints both biotic and biotic, where the twin vagaries of climate change and poor prices hav… RUF-40803 2019 CC BY 4.0 22 Nov 2023
Working Document Series Open Access The prevalence and management options for bacterial wilt caused by Ralstonia solanacearum in African Nightshades in Kenya L. M. Kiirika · M. Maina · N. Njau · L. Tuurop The consistently rising human population in Kenya demands production of healthy food. African Nightshades have good potential in contributing to Kenya’s vision 2030 in attaining food and nutrition security. African nightshades form an impo… RUF-39757 2018 CC BY 4.0 17 Jan 2023
Working Document Series Open Access The potential role of Abuscular Mycorrhizae and native rhizobia in upscaling maize and cowpea production in semiarid zone of Eastern Kenya J. M. Maingi · M. M. Muindi · M. Muthini · E. M. Njeru +2 more Legumes are an essential component of many cropping systems due to their ability to form symbiotic associations with nitrogen fixing bacteria. Key constraint faced by smallholder farmers in Sub-Sahara Africa is lack of resources so they ca… RUF-39752 2018 CC BY 4.0 16 Jan 2023
Working Document Series Open Access Botanical fungicide for sustainable production of fresh vegetables G. M. Lengai · J.W. Muthomi Pests and diseases are a major challenge to vegetable production. Growers rely on chemical pesticides for management but despite their efficacy, synthetic pesticides have negative effects on the applicator, consumers and environment. Some … RUF-39736 2018 CC BY 4.0 12 Jan 2023
Working Document Series Open Access Understanding the virulence dynamics of bacterial wilt caused by Ralstonia solanacearum and the host plant defense responses C. Allen · B. Dalsing · L. M. Kiirika Bacteria wilt caused by Ralstonia solanacearum has continued to pose a significant threat to a wide range of agricultural crops. The direct and indirect damage caused by various R. solanacearum strains result in reduced yields and quality … RUF-39734 2018 CC BY 4.0 12 Jan 2023
Working Document Series Open Access Influence of plant and seed characteristics on cowpea weevil infestation of Vigna unguiculata M. Abakutsa-Onyango · S. Buleti · E. Mamati Cowpea (Vigna unguiculata) is a self-pollinated popular legume that can be consumed as vegetable, grains stew or otherwise used for animal forage. It is only propagated by seed. Cowpea weevil (Callosobruchus maculatus) is a field and stora… RUF-39721 2018 CC BY 4.0 12 Jan 2023
Working Document Series Open Access Inheritance of resistance to Fusarium root rot (Fusarium redolens) in selected genotypes of cowpea in Uganda S. Auma · B. Awio · Z.A. Chiteka · R. Edema +3 more Cowpea production in Uganda is constrained by Fusarium root rot disease caused by Fusarium redolens. The use of resistant cultivars is the most economical long-term strategy to manage the disease and knowledge of the inheritance of resista… RUF-39716 2018 CC BY 4.0 12 Jan 2023
Working Document Series Open Access Serological and molecular detection of Rice Yellow Mottle Virus in western Kenya A. K. Adego · D. Fargette · E. Hebrard · B. Mukoye +4 more Rice production remains very low with yields ranging from 1.5-3.5 ton ha-1.The low yields are due to abiotic and biotic constraints with pests and diseases being the most important. Rice yellow mottle disease (RYMD), caused by the Rice yel… RUF-39709 2018 CC BY 4.0 12 Jan 2023
Working Document Series Open Access Application of X-ray micro-computed tomography to detect bruise damage of pomegranate (cv. Wonderful) fruit du Plessis Anton · A. Ebrahiema · O.A. Fawole · Z. Hussien +1 more The key to extending the storage life and maintaining the quality of fresh fruit could rely on early detection and separation of fruit with mechanical damage such as bruising. A non-destructive technique was developed to detect bruise dama… RUF-39640 2018 CC BY 4.0 20 Sep 2022
Journal articles Open Access GWAS provides biological insights into mechanisms of the parasitic plant (Striga) resistance in sorghum J. Kavuluko · M. Kibe · W. Kibet · T. Magomere +6 more Background: Sorghum yields in sub-Saharan Africa (SSA) are greatly reduced by parasitic plants of the genus Striga (witchweed). Vast global sorghum genetic diversity collections, as well as the availability of modern sequencing technologie… RUF-39417 2021 CC BY 4.0 18 Sep 2021
Working Document Series Open Access Spatial and temporal spread of maize lethal necrosis disease causing viruses and their vectors within the field K. Dora · D.W. Miano · D. Mukunya · R.M. Ngala Maize lethal necrosis disease (MLND) is a viral disease of maize resulting from co-infection of Maize chlorotic mottle virus (MCMV) and any cereal Potyvirus such as Sugarcane mosaic virus (SCMV), Maize dwarf mosaic virus (MDMV) or Wheat st… RUF-39344 2018 CC BY 4.0 27 Jul 2021
Working Document Series Open Access Transmission pattern of Maize chlorotic mottle virus (Machlomovirus) on maize by Frankliniella williamsi and F. occidentalis (Thripidae) in Kenya R. Gitonga · R. Kahuthia · D.W. Miano · M. Mwangi +1 more Maize chlorotic mottle virus (MCMV) infects maize (Zea mays L) which is a major staple food crop in sub-Saharan Africa, causing yield losses of between 10-15%. When the virus co-infects with maize infecting potyviruses, they cause Maize le… RUF-39342 2018 CC BY 4.0 27 Jul 2021
Working Document Series Open Access Fungal contaminants and aflatoxins in maize from lower eastern region in Kenya S.P. Kuate · D. O. Mbuge · W.M. Muiru · S.T. Mwangi +1 more Aflatoxin outbreaks have been reported in the lower eastern region of Kenya since 1978. These outbreaks have caused a lot of concern as some have led to loss of lives. This study was conducted to assess the extent of fungal contaminants in… RUF-39336 2018 CC BY 4.0 27 Jul 2021
Journal articles Open Access Effect of Botanical Extracts on Late Blight (Phytopthora infestans) and Productivity of Tomato (Solanum esculentum) S. Chikuta · T. Choga · V. O. Gwatidzo · Gabriel Karubanga +4 more Late blight is caused by Phytopthora infestans (Mont.) de Bary which establishes quickly in Solanum esculentum L. (tomato); as a result, it makes the pathogen one of the most devastating plant diseases across the world. )e control of late … RUF-39298 2021 CC BY 4.0 15 Jun 2021
Working Document Series Open Access Evaluation of suppressive potential of selected plant species against Phytophthora infestans in vitro S.O. Agong · R. Kahuthia-Gathu · M. Mwangi · J.W. Waceke Globally, Phytophthora infestans causes annual potato losses estimated at over $6 billion with fungicides alone accounting for over $1 billion. In Kenya, potato yield loss estimates reach 119,500 tons annually. Several fungicides recommend… RUF-39013 2018 CC BY 4.0 25 Feb 2021
Working Document Series Open Access Enhancing climate resilience of cropping systems: A synopsis of research activities by crop scientists at University of Nairobi G. Chemining’wa · O. M. Kitonyo Climate change is associated with rising temperatures, elevated carbon dioxide, variable rainfall patterns and frequent droughts, reduced soil carbon and mineral nutrients, and increased influx of pests and diseases, in addition to adverse… RUF-38906 2018 CC BY 4.0 16 Dec 2020
Journal articles Open Access Farmer Preference of Cassava Cultivars in Eastern Uganda: A Choice Beyond Disease Resistance F. Kasule · S.B. Mukasa · Clever Mukuze · A. W. Mwang’ombe +4 more The cassava breeding program in Uganda has released many improved cultivars resistant/tolerant to cassava brown streak disease (CBSD) and cassava mosaic disease (CMD). However, many farmers have continued to use cultivars that are suscepti… RUF-38835 2020 CC BY 4.0 5 Dec 2020
Journal articles Open Access Revisiting biotic and abiotic drivers of seedling establishment, natural enemies and survival in a tropical tree species in a West Africa semi-arid biosphere reserve A.E. Assogbadjo · Justin A. Atanasso · Kangbéni Dimobe · R. Glèlè Kakaï +3 more Biotic and abiotic drivers of seedling establishment and survival are fundamental not only for elucidating processes occurring at plant early life stages, but also for assisting species natural regeneration. Keystone, multipurpose and econ… RUF-38800 2020 CC BY 4.0 27 Sep 2020
Journal articles Open Access Effects of Tithoniadiversifolia Extract and Trichodermaasperellum on Growth and Yield of Strawberry Fruit (Fragaria× ananassavarDuch) R.M. Gesimba · J. W. Wanjukia · J.N. Wolukau A study on the effect of Tithoniadiversifolia extracts and Trichodermaasperellum on growth, yield, and quality of strawberry fruit (Fragaria× ananassavarDuch) wasconducted in Horticulture, Research and Teaching field, Egerton University. T… RUF-38797 2020 CC BY 4.0 23 Sep 2020
Working Document Series Open Access Socio-economic impact of Anacridium melanorhodon melanorhodon outbreaks on local gum arabic producers in North Kordofan, Sudan A. M. Abdalla · W. M. Haroon · M. Lecoq · M. H. Mohamed +1 more The study was conducted in North Kordofan, Sudan during 2012/2013 season. The study aimed at assessing the socio-economic impacts of the tree locust, Anacridium melanorhodon melanorhodon on gum arabic producers. A key informant questionnai… RUF-38779 2018 CC BY 4.0 16 Sep 2020
Working Document Series Open Access Host plant resistance for management of quarantine fruit pests of hot pepper in Uganda M. H. Amici · J. Karungi · M.K.N. Ochwo-Ssemakula · C. F. Ragassi +3 more Hot pepper (Capsicum frutescens) dominates the world spice trade and is an important cash crop for small scale farmers in developing countries. However, its production and productivity remain low and this is attributed to lack of improved … RUF-38773 2018 CC BY 4.0 16 Sep 2020
Working Document Series Open Access Population of Aspergillus flavus and Fusarium verticillioides and contamination of maize with associated mycotoxins under push-pull cropping system in Siaya County, Western Kenya Z. R. Khan · C. A. O. Midega · J.W. Muthomi · N.K. Njeru +1 more Push-pull cropping system is a companion cropping system that effectively controls stemborers, fall armyworm and Striga weed, resulting in increased yield in cereal crops like maize and sorghum. Siaya County is one of the administrative lo… RUF-38742 2018 CC BY 4.0 15 Sep 2020
Working Document Series Open Access Response of selected tomato varieties (Solanum lycopersicum) to tomato yellow leaf curl virus N. J. Siganka Lack of tomato varieties that are tolerant to Tomato Yellow Leaf Curl Virus (TYLCV) is the major problem that hinders the control and management of TYLCV severity on tomato plants. The pathogen is transmitted from leaf to leaf by a vector,… RUF-38738 2018 CC BY 4.0 15 Sep 2020
