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
Working Document Series Open Access Severity expression of net blotch foliar infection as induced by initial exposure to aluminium toxicity and drought stress in barley S. Gyawali · J.O. Ochuodho · N.K. Rop · J.O. Were The interactions between aluminium toxicity, drought and net blotch may be the reasons for decreasing barley yields in Kenya despite availability of improved varieties. Such interactions induce diverse hormonal signaling and biochemical re… RUF-38736 2018 CC BY 4.0 15 Sep 2020
Working Document Series Open Access Evaluation of chickpea genotypes for tolerance to ascochyta blight P. Kimurto · K. Kiplagat · O. Kiplagat · J. Ochuodho In Kenya dry highlands where wheat, maize, and barley are the main crop, chickpeas are considered as off-season crop (October-February) before the next cropping season. Thus these crops provide an alternative source of income to farmers. C… RUF-38735 2018 CC BY 4.0 15 Sep 2020
Working Document Series Open Access Efficacy of hot water treatment in management of sugarcane ratoon stunting disease J.W. Muthomi · R.D. Narla · E. S. Philip · G. M. Riungu Sugarcane ratoon stunting disease (RSD) caused by the bacterium Leifsonia xyli subsp. xyli causes huge losses to sugarcane ratoon crops. Hot water treatment is commonly used in many countries to control RSD but conflicting results show tha… RUF-38730 2018 CC BY 4.0 15 Sep 2020
Working Document Series Open Access Breeding for watermelon chlorotic stunt viral disease resistance in watermelon M.A. G. Abdelbagi · I. H. E. Babikir · Beshir Mayada M. · R. S. Omara +1 more The white fly transmitted watermelon chlorotic stunt virus (WmCSV) is the causal agent of the most devastating disease of watermelons (Citrullus lanatus) across many African and Middle Eastern countries including Sudan. Commercial cultivar… RUF-38727 2018 CC BY 4.0 15 Sep 2020
Working Document Series Open Access Importance of cowpea production, breeding and production constrains under dry areas in Africa L. N. Horn · H. A. Shimelis Cowpea [Vigna unguiculata (L.) Walp.] is an important grain legume which is widely grown in sub-Saharan Africa (SSA) for food and feed. Its grain is composed of high levels of protein, energy and micro- and macro-nutrients. Young and succu… RUF-38725 2018 CC BY 4.0 14 Sep 2020
Working Document Series Open Access Reaction of Rice Blast Pyricularia oryzae CAV. isolates on a set of improved rice varieties in Western Kenya indicator to presence of pathogenic strains M. G. Kariaga · R. Onamu · J. Wakhungu · H. K. Were Rice (Oryza sativa L.) remains the most favoured grain for human consumption in the world. The yields in Kenya and many African countries are below the world averages. Rice blast disease has been registered as a major cause for reducing yi… RUF-38722 2018 CC BY 4.0 13 Sep 2020
Working Document Series Open Access Management of bacterial wilt of tomato using resistant rootstocks J.W. Muthomi · E. W. Mutitu · J. N. Onduso Bacterial wilt (Ralstonia solanacearum) is a devastating disease of tomato that is quickly spreading and affecting many fields causing a reduction in yield and income to farmers. The objective of the study was to determine the effect of us… RUF-38718 2018 CC BY 4.0 13 Sep 2020
Working Document Series Open Access Heterosis for fruit yield, yield components and bacterial wilt resistance of tomatoes genotypes in Kenya F. K. Kathimba · P. M. Kimani · L. M. Kiriika · R.D. Narla Yields of tomato (Solanum lycopersicum) in Kenya has continued to decrease due to biotic stresses especially bacterial wilt (Ralstonia solanacearum), fungal diseases, nematodes, tomato yellow leaf curl and overreliance on low yielding vari… RUF-38715 2018 CC BY 4.0 13 Sep 2020
Working Document Series Open Access Fitting banana tissue culture planting material into farmers’ cultural values in Central Uganda: Challenge to control of banana Xanthomonas wilt P. Kibwika · E. Kikulwe · F.B. Kyazze · L. Mulugo +1 more Banana tissue culture planting materials are one of the strategies for fighting the Banana Xanthomonas Wilt (BXW) disease in Uganda. The disease is a major threat to food and income security in parts of Uganda where banana is an important … RUF-38712 2018 CC BY 4.0 13 Sep 2020
Working Document Series Open Access Effect of maize lethal necrosis disease on seed quality of commercial hybrid varieties T. N. Kinyungu · D.W. Miano · J.W. Muthomi · F. Olubayo The recent maize outbreak of maize lethal necrosis (MLN) disease is a big threat to the already strained food security in Kenya. The disease is caused by co-infection of maize with Maize chlorotic mottle virus and cereal potyviruses mostly… RUF-38710 2018 CC BY 4.0 13 Sep 2020
Working Document Series Open Access Fungal foliar diseases infecting groundnut: their management, status and the future J. Mwololo · T. Odong · P. Okori Cultivated groundnut (Arachis hypogaea L.) is an important oilseed crop widely grown in the tropics and subtropics. The yield for this crop is significantly affected by fungal foliar diseases namely leaf spots and rust to the tune of 60% i… RUF-38706 2018 CC BY 4.0 12 Sep 2020
Working Document Series Open Access Incorporating genomic markers and weather variables in genotype-by-environment interaction analyses for cassava brown streak disease D. Akdemir · W. Esuma · Jean-Luc Jannink · R. Kawuki +2 more Genotype-by-environment (GxE) interactions is a reality that scientists deal with when developing new and better varieties. With increase in scale of both phenotypic and genetic data, coupled with environmental data, prediction of environm… RUF-38704 2018 CC BY 4.0 12 Sep 2020
Working Document Series Open Access Signaling and cross-talk between Salicylic Acid and Abscisic Acid phytohormones on Net Blotch, Aluminium toxicity and drought stresses in barley S. Gyawali · J.O. Ochuodho · N.K. Rop · J.O. Were Varying levels of abscisic acid and salicylic acid whose effects can be antagonistic or synergistic are produced by plants including barley under stress conditions. This scenario has not been explored in details and scientifically document… RUF-38630 2018 CC BY 4.0 7 Sep 2020
Working Document Series Open Access Comparative effects of soybean, grain amaranth (Amaranthus spp) and nitrogen on Striga (Striga hermonthica) and maize yield in western Kenya W. K. Ngetich · E. K. Ronoh · V. K. Rotich · C. Serem Western Kenya, the area considered the grain basket of the country, is heavily infested by Striga, reducing maize yields by up to 30-100%. On-farm trials were conducted in two cropping seasons between August 2014 to July 2015 at Ugunja, Si… RUF-38623 2018 CC BY 4.0 4 Sep 2020
Working Document Series Open Access Effect of sowing date and genotypes on some yield components of kenaf S. I. Idres · S. A. Yousif A study was conducted at the University of Gezira in Wad Medani experimental farm in Sudan during May - September 2014 to determinate the optimum date for sowing kenaf (Hibiscus cannabinus L.). Two kenaf genotypes, i.e., GS and RS were use… RUF-38613 2018 CC BY 4.0 4 Sep 2020
Working Document Series Open Access Characterization of tomato accessions for breeding research in Kenya F. K. Kathimba · P. M. Kimani · L. M. Kiriika · R.D. Narla Understanding the phenotypic traits of germplasm through cultivation and assessing the morphological and agronomic characters facilitates selection of suitable parents for a breeding programme. Although tomato is the leading vegetable crop… RUF-38610 2018 CC BY 4.0 4 Sep 2020
Journal articles Open Access Genetic Basis of Maize Resistance to Multiple Insect Pests: Integrated Genome-Wide Comparative Mapping and Candidate Gene Prioritization S Agbahoungba · G. Asea · A. Badji · A. Bararyenya +14 more Several species of herbivores feed on maize in field and storage setups, making the development of multiple insect resistance a critical breeding target. In this study, an association mapping panel of 341 tropical maize lines was evaluated… RUF-38341 2020 CC BY 4.0 27 Jun 2020
Journal articles Open Access Micropropagation of Livingstone Potato (Plectranthus esculentus N.E.Br) T. C. Chitendera · G. T. Kujeke · R. T. Masekesa · A. Matikiti +3 more Livingstone potato (Plectranthus esculentus N.E.Br) is an underutilised indigenous root vegetable grown by communal farmers in the eastern provinces of Zimbabwe. It is vegetatively propagated using unimproved retained tubers from the previ… RUF-38331 2020 CC BY 4.0 24 Jun 2020
Theses & Dissertations Open Access Genetic Diversity and Genotype × Environment Interaction of Advanced Elite Soybean Genotypes in Uganda Clever Mukuze Soybean is an important food and cash crop in Uganda. Despite its importance, soybean production is highly affected by ever-changing biotic and abiotic stresses. The main objective of this study was to enhance soybean production and produc… RUF-38176 2019 CC BY 4.0 19 Mar 2020
Theses & Dissertations Open Access Genetic resistance to adzuki bean bruchid (Callosobruchus chinensis) in soybean M.U. Msiska Soybean [Glycine max (L.) Merrill], an annual legume that belongs to the family Fabaceae is grown in every continent for its high protein (40%) and oil (20%) content. Soybean was introduced to Uganda in the 1900s. However, for the first ti… RUF-38102 2019 CC BY 4.0 20 Aug 2019
Journal articles Open Access Correlation and path analysis of yield, yield contributing and malt quality traits of Ethiopian sorghum (Sorghum bicolor (L.) Moench) genotypes L. Berhane · M.H. Firew · H.M. Gobezayohu · P.S.V. Ramesh +1 more Sorghum is a drought tolerant C4 tropical crop with wide diversity grown for food, feed and beverages. There is a growing demand for food and malt type sorghum varieties due to the low supply of mat barley, and climate resilient and gluten… RUF-38101 2019 CC BY 4.0 19 Aug 2019
Journal articles Open Access Genetic variability for malting quality, yield and yield related traits of Ethiopian sorghum [Sorghum bicolor (L.) Moench] genotypes L. Berhane · M.H. Firew · H.M. Gobezayohu · T.M. Taye Sorghum is drought tolerant C4 tropical crop with wide diversity grown for food, feed and beverages. There is a growing demand for food and malt type sorghum varieties due to the low supply of mat barley, climate resilient and gluten free … RUF-38098 2019 CC BY 4.0 19 Aug 2019
Theses & Dissertations Open Access Genetics of Cowpea Resistance to Bruchid (Callosobruchus maculatus Fab.) Miesho Belay Weldekidan Cowpea Vigna unguiculata (L.) is an important indigenous legume crop providing dietary protein, minerals, carbohydrates, fats, vitamins and income to many people in Africa, Asia, and Central and South America. However, its production is li… RUF-37865 2019 CC BY 4.0 15 Jan 2019
TAGDev Resources Open Access Maize resistance to stem borers and storage pests: The need for new genetic and functional genomics approaches in future research A. Badji · S. Kyamanywa · L. Machida · T.L. Odong +2 more Insect pests are primary constraints in maize (Zea mays) production in many places in sub-Saharan Africa. Stem borers and storage pests are responsible for severe yield losses and health hazards due to mycotoxin contamination. Integrated p… RUF-37603 2017 CC BY 4.0 16 Apr 2018
