Working Document Series Open Access Combining ability and performance of maize hybrids under low nitrogen and drought stress G. Asea · R. Edema · A. Nyombayire The main objective of this study was to develop maize genotypes that perform well under drought and low-nitrogen stresses. Twelve parents were crossed in a half-diallel mating design. The resultant F1 hybrids were evaluated in four environ… RUF-34506 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Climate variability and Tillage practices: Effect on soil moisture, carbon dynamics and crop productivity in semi arid Zimbabwe J. Keter · J. M. Kinama · R. Moyo · I. Nyagumbo +1 more To improve on low yields of rainfed agriculture which are a result of soil degradation, low fertility and low moisture levels in semi-arid areas and increased climatic variability due to climate change, conservation agriculture (CA) is bei… RUF-34505 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Genetics of resistance to bacterial leaf blight in rice germplasm in Uganda G. Asea · P. Gibson · J. Lamo · P.J. Mudingotto +3 more Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae is one of the most serious diseases of rice worldwide. The disease causes significant losses mostly in lowland rice. This study is investigating the mode of gene action of… RUF-34489 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Vulnerability to drought, adaptation and coping strategies among agro-pastoral communities in Botswana Kabo Mogotsi · M.M. Nyangito · D.M. Nyariki With the increased threat of climate change effects on the African continent, this study was carried out to document the coping mechanisms against the rampant droughts by the agropastoral communities in Botswana. The study was carried out … RUF-34479 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Enhancing genetic resistance to soybean rust disease R. Bandyopadhyay · M. Maphosa · C. Mukankusi · H. Talwana Soybean is an important crop worldwide with unrivalled protein quality and content. Sustenance of soybean productivity is, however, compromised by the devastating soybean rust disease caused by the fungus Phakopsora pachyrhizi. Some resist… RUF-34472 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Participatory analysis of growing season: A key for understanding and copping drought risk in northern Ethiopia A. Araya Berhe Prolonged drought is one of the most serious climatic hazards affecting agricultural production and those most at risk are those countries currently vulnerable to climate variability. Barley is one of the economical and staple food crops g… RUF-34469 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Sustainable crop production using hairy vetch (Vicia villosa Roth) to enrich soil fertility and conserve soil moisture for maize cropping in smallholder farming systems in Zimbabwe D. Chinamo · F Mapanda · M. Munyati · G. Nyamadzawo +2 more Crop production in smallholder farming systems of Zimbabwe is limited by low inherent soil fertility, particularly N and P and available soil moisture. One of the major agricultural challenges in developing countries is the development of … RUF-34466 2010 CC BY 4.0 21 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 An evaluation of the effect of hairy vetch (Vicia villosa Roth) on soil fertility of sandy soils in central Zimbabwe F Mapanda · A. Tumbure · M. Wuta Crop production in smallholder farming systems of Zimbabwe is limited by low inherent soil fertility, particularly N and P and available soil moisture. The use of efficient N fixing legumes is one way that can sustain soil fertility and co… RUF-34460 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Improving greengram production for nutritional diversification, income and food security in Uganda G. Elepu · J. Obuo · H. L. Talwana · N. Wanyera This project seeks options for improving greengram production and guidelines for promoting it as a crop for diversification of income and food security in Uganda. The project will analyze the greengram value chain system; identify the key … RUF-34456 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Variability in carotenoid content among introduced yellow-fleshed cassava clones R. Edema · J. W. Kamau · P. W. Njenga Cassava is important in semi-arid Kenya. However, the crop is low in micronutrients including beta-carotene. A total of 129 high beta-carotene cassava clones from the International Institute of Tropical Agriculture (IITA) were established … RUF-34434 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Conserve and screen premium value indigenous plant biodiversity and products on women smallholder farming systems of East Africa L.S.M. Akundabweni · A. Namutebi Various interventions for promoting the premium value of indigenous plants (IPs) are being adopted to enhance their status in the food sub sector. The project aims to enhance women smallholder farmers’ capacity in target Lake Victoria Basi… RUF-34426 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Ethno-botanical and morphological characterisation of cocoyams (Colocasia esculenta L. Schott and Xanthosoma sagittifolum L. Schott) germplasm in Malawi I. R. M. Benesi · F. P. Chipungu · L. Herselman · M. T. Labschagne +1 more Cocoyam accessions of Malawi were characterised using ethnobotany and morphological characters. Thirty above ground qualitative characters were evaluated. The cultivars were identified mainly based on the predominant leaf base and petiole … RUF-34424 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Linkages between crop residues, termite prevalence, crop lodging and subsequent crop yield under conservation agriculture in Zimbabwe E. F. Mutsamba · I. Nyagumbo Farmers believe that addition of residues to fields in conservation agriculture (CA) attract termites hence increase lodging, although they are beliefs that termites prefer feeding on dry matter and leave the crop. This study carried out i… RUF-34415 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Effect of temperature on maize sensitivity to acetochlor J. Allemann · P. Mphundi This greenhouse study determined the effect of temperature on the herbicide acetochlor. The herbicide was applied a day after planting at the rates of 0.74, 1.47, 2.94 and 5.85 kg ha-1. Plants were kept at three temperature: supra-optimal … RUF-34413 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access The effect of timing of earthing up on the performance of four Bambara groundnut landrace cultivars in the Mutasa District of Manicaland Province in Zimbabwe Z.A. Chiteka · S. Mhungu An experiment was carried out at two sites to investigate the effect of timing of earthing up on the yield of four landrace cultivars of Bambara groundut (Vigna subterranean [L.] Verdc.) cultivars in Zimbabwe during the 2006/2007 season. T… RUF-34411 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Influence of temperature on yield of carrots J. Allemann · G. M. Engelbrecht · N. A. Manosa This study evaluated the influence of temperature on yield and retinol content of two carrot cultivars. Both cultivars yielded higher at lower (10 °C) than higher temperature (18 °C), but retinol content was higher at 18 °C. RUF-34399 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Effect of varying Desmodium and maize harvesting regimes on their yields and growth attributes within the “Push- Pull” intercropping systems in Western Kenya Z. Khan · M. N. Koech · J.R. Okalebo · C.O. Othieno +3 more This study tested the hypothesis that inclusion of Desmodium spp. into maize cropping system under the push-pull technology enhanced crop growth and yield. Field trials were conducted in Siaya and Busia districts of western Kenya with the … RUF-34388 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Fumigant toxicity of five essential oil constituents against major stored-product insect pests of food grains P.K Bett · A.L. Deng · E. A.W. Kamau · S.T Kariuki +5 more Insect pests attacking stored food grains cause substantial losses that undermine food security in sub-Sahara Africa. Subsistence farmers predominantly use traditional plant-based products to protect their grains in storage. In an attempt … RUF-34387 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Evaluation of Metarhizium anisopliae for integrated management of termites on maize and Grevillea robusta in Uganda and Kenya H. Agaba · L. Gohole · N.K. Maniania · P. Nyeko +1 more Termites are a major constraint to subsistence agriculture, causing yield losses up to 100%. Recent studies have demonstrated the efficacy of the fungus, Metarhizium anisopliae for controlling termites, but little is yet known about sustai… RUF-34376 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Potential of hairy vetch (Vicia villosa Roth) to improve soil physical properties of sandy soils in central Zimbabwe D. Chinamo · F Mapanda · G. Nyamadzawo · M. Wuta Most farmers in the smallholder areas practice conventional tillage which results in soil loss of between 10-34 t ha-1 yr-1. Tillage also results in breakdown of macroaggregates into smaller aggregates as well as primary particles. Close p… RUF-34374 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Response of sorghum genotypes to indigenous and exotic stem borers in Kenya P. Gibson · S. Kyamanywa · M. Mgonja · P.W. Muturi +1 more Field trials are being conduced in Kenya to identify sources of resistance, especially multiple resistance to Buseola fusca and Chilo partellus, two devastating pests of maize in sub-Saharan Africa. Genotypes ICSB 464, ICSB 467, Macia, IES… RUF-34367 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Participatory management of Striga in cereal-based cropping systems in eastern Uganda J. Bisikwa · I. Kapting · M. B. Karuhanga · M. Otim +2 more Striga hermonthica is a parasitic weed that infects cereal crops often causing 30-100% crop losses on farmers’ fields. Past research has developed several effective Striga control strategies, most of which have not been adopted by farmers,… RUF-34365 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Collection and documentation of Papaya germplasm in Kenya. G. O. Asudi · E. M. Ateka · A. B. Nyende · F. K. Ombwara +2 more Papaya (Carica papaya L.) is one of the major fruit crops of Kenya and the tropics in general. It shows considerable phenotypic variation in morphological and horticultural traits that can be utilized in genetic improvement. The objective … RUF-34358 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access The effects of water stress on yield and water productivity of two newly released wheat varieties H. Sirelkhatim Ahmed · A. Amel Ali This experiment was conducted under Gezira condition,Wad Medani, latitude 14º 242 N, longitude 33º 292 E and with an elevation of 405 m above the sea level, during season (2008/2009). A split plot design with four replications and nine irr… RUF-34350 2010 CC BY 4.0 20 Aug 2015
