Working Document Series Open Access Adaptability of rice cultivars to different ecologies in western province of Zambia D.M Lungu · C. Mutale · F. P Muuka Rice in Zambia has traditionally been grown in lowland flooded or semi-flooded environments. These environments are unfortunately only a small portion of Zambia, occupying only 1% of the total land. The increase in food demand in the count… RUF-34643 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access Translating integrated soil fertility management empirical knowledge into action through participatory learning and marketing with farmers in Zimbabwe R. Chikowo · D. Dhliwayo · P. Mapfumo · F. Mtambanengwe +1 more In this paper we report on findings from a co-learning experience we undertook with smallholder farmers in two areas in Zimbabwe aimed at developing their capacity to apply integrated soil fertility management (ISFM) options to improve foo… RUF-34639 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Improving smallholder irrigation performance in Malawi D. Kadyampakeni · C. Makwiza · H.R. Mloza-Banda The paper reports work aimed at improving livelihoods of smallholders by providing investors, policymakers and implementers with concrete knowledge and tools to make informed investment decisions on small-scale irrigation water management … RUF-34630 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Grain filling patterns of CIMMYT early maize inbred lines R. Edema · E. Gasura · P. Gibson · P. Okori +2 more Despite the ability of early maize to escape drought and provide food early, it yields 20-30% less than late maize. The challenge is to increase yield while maintaining earliness. A study is ongoing at CIMMYT, Harare to determine whether g… RUF-34614 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Genetic variation of Zambian maize inbred lines commonly used in breeding Richard Chanda · C. Mungoma · M. Mwala · K. Mwansa +1 more In sub-Saharan Africa (SSA), breeders have the challenge of developing high yielding maize hybrids that are adapted to farmers’ conditions. This however requires knowledge on the breeding value of elite maize germplasm. Ten (10) maize inbr… RUF-34610 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Phosphate sorption by andisols and ultisols, and its implication on phosphorus bioavailability in the wet tropics of Tanzania E. Kisetu · J.P. Mrema Phosphorus (P) sorption and desorption behaviour of Andisols of Siha - Kilimajaro and Ultisols of Magadu -Morogoro, Tanzania was studied in pot experiments. This was to facilitate development of P management strategies for enhanced maize p… RUF-34606 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Assessing factors influencing types, rate of application and timing of fertilizer use among small-scale farmers of western Kenya M.K. Kifuko-Koech · A.K. Kipkoech · K.W Ndungu · A.O. Nekesa +1 more Many soil fertility amelioration technologies exist in western Kenya, but the factors that influence the adoption, and the economic returns of these technologies needs to be assessed. In this study, the value cost ratios (VCR) of five diff… RUF-34603 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Determining appropriate mode and rate of applying lime to improve maize production in acid soils of north Kakamega and Siaya districts, Kenya J.K. Kiplagat · J.R. Okalebo · C.O. Othieno Increasing soil acidity is a major cause of low soil fertility in western Kenya where about 57,670 hectares is acidic. While liming can increase soil pH, the most appropriate method of application needs to be determined. This study aimed a… RUF-34599 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 Comparative effects of Minjingu phosphate rock and triple super phosphate on residual P in an Ultisol A.M. Kalala · J.M.R. Semoka A glasshouse experiment was conducted at Sokoine University of Agriculture to compare the effects of Minjingu Phosphate Rock (MPR) and Triple Super Phosphate (TSP) on Residual Phosphorus in an Ultisol. The soil was collected after seven ye… RUF-34593 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Comparative effect of farmyard manure, cowpea residues and NPK Fertilizer on maize grain yield in Morogoro G. Habonayo · C.L. Rweyemamu · J.M.R. Semoka Optimal combinations of organic and inorganic fertilizers can give rise to increased maize yields in nutrient depleted soils. In this study, we assessed the effectiveness of cowpea residues and combinations of inorganic fertilizers on maiz… RUF-34587 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Farmers’ perceptions on maize ear rots and the prospects for breeding farmer preferred varieties in Uganda G. Asea · P. Gibson · P. Okori · L. Tembo Maize ear rots are a major constraint to maize production globally, and yield loses of up to 70% have been reported in Uganda. Developing varieties resistant to ear rots is a practical strategy that provides better insurance for the small … RUF-34586 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Effect of selected arbuscular mycorrhiza fungi on the growth of Calliandra calothyrsus and Sorghum bicolor in eastern Uganda E. Adipala · G. Eilu · C.L. Kizza · J.G.M. Majaliwa +2 more Successful consistent revegetation of drastically disturbed areas throughout the world has been achieved using biological “tools” including mycorrhizal fungus inoculated tree seeds, seedlings, native shrubs, and grass species. However, the… RUF-34583 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Effects of tied ridges for rainwater harvesting on maize yields in Swaziland O. T. Edje · E.M. Ossom This study assessed options for use of tied-ridges for on-farm water harvesting in Swaziland. Results showed that farmers in sandy and loamy soils need different sizes of ridges, 4 m and 2 m, respectively. RUF-34582 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Relationship between grain yield and Fusarium head blight in soft red winter wheat as influenced by cultivar resistance L. V. Madden · A. P. Pierce · J. D. Salgado · M. W. Wallhead Fusarium Head Blight (FHB) is a serious disease in all wheatgrowing areas in the world. FHB affects wheat by reducing yield and grain quality. Our objective is to characterize the relationship between FHB and grain yield. Three soft red wi… RUF-34578 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access Studies into slow rusting resistance among selected wheat lines F.M. Nzuve · D. Singh · G. Tusiime Wheat is an important staple crop in East Africa whose consumption outweighs its production partly due to the emergence of a virulent strain of Puccinia graminis fsp tritici, strain ug99 that cause stem rust disease. A study was carried ou… RUF-34573 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access Development of aluminium toxicity tolerance system for sorghum in agro ecological region three of Zambia S. Chikuta The overall objective of this study was to characterize selected sorghum varieties for Aluminium (Al) tolerance. The specific objectives were to determine performance of selected sorghum varieties grown in Al prone environments, identify r… RUF-34568 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access Evaluation of the soil fertility status in relation to crop nutritive quality in the selected physiographic units of Mbeya Region, Tanzania N. Amuri · J.M. Anthony · L. Mhoro · B.M. Msanya +1 more This study is assessing soil fertility status in Mbeya region of Tanzania in terms of adequacy for crop growth and crop nutrient status in terms of human nutrition. It will examine levels of macro and micronutrient. The study has just been… RUF-34565 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access Effect of drip irrigation system and fertigation on growth, yield and quality of banana cv. Grand Nain (Musa AAA) B. A. Ahmed · M.I. Ihsan · A.A. Mohammed Banana cv. Grand Nain is a newly released cultivar in Sudan with high yield potential and less sensitivity to cool temperature. There is a high demand for exporting this cultivar which will replace the widely grown banana cv. Dawarf Cavend… RUF-34560 2010 CC BY 4.0 7 Sep 2015
Working Document Series Open Access The reaction of maize genotypes to maize streak virus disease in central Uganda B. Bua · B. M. Chelimo Documented evidence indicates that maize is production is constrained by a number of a biotic and biotic stresses including Maize streak virus disease (MSVD). Therefore, a study was conducted to assess the reaction of 3 maize genotypes to … RUF-34550 2010 CC BY 4.0 4 Sep 2015
Working Document Series Open Access Heterosis and combining abilities for multiple resistance to Turcicum leaf blight and maize streak virus G. Asea · Y. Baguma · P. Okori · L.A. Opio Fifty two single crosses were evaluated for resistance to Turcicum Leaf blight (TLB) and Maize Streak Virus (MSV) resistance across several locations in Uganda in 2009. The crosses were grown in 1-row plots with 2 replications. Subsequentl… RUF-34520 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Enhancing sweetpotato resistance to African weevils (Cylas puncticollis and Cylas brunneus) through transgenic breeding J. F. Kreuze · S.B. Mukasa · R.J. Rukarwa Sweetpotato production is greatly constrained by two weevil species; Cylas puncticollis and C. brunneus that cause yield losses of up to 80%. The use of resistant sweetpotato cultivars is the most sustainable strategy to control the weevil… RUF-34519 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access The implications of climate change on economic and food security in Kenya A. Edriss · J. Mangisoni · J. Mbogo · I. Musebe This study, covering six provinces in Kenya, aims at establishing impact of climate change on food security and Kenya’s economy as a whole. Both primary and secondary data will be collected and analyzed using approaches such as the translo… RUF-34510 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 Genetic inheritance studies and early generation marker selection in maize breeding for drought tolerance C. Magorokosho · X. Mhike · P. Okori It has been estimated that approximately US $10 billion of primary food production is lost annually because of drought. Interventions like irrigation are options the majority of the smallholder farmers in sub Saharan Africa cannot afford. … RUF-34476 2010 CC BY 4.0 21 Aug 2015
