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Aluminium (Al) toxicity is a major abiotic constraint that limits grain sorghum (Sorghum bicolor L. Moench) production on acid soils. It inhibits water and mineral uptake and ultimately, reduces plant vigour and yield. A preliminary study …
The acid soils of western Kenya where most of the sorghum is grown have very low available phosphorus, at 2-5mg P/kg soil compared to the recommended levels of 10-15mg P/ kg soil required for optimal crop productivity. In these soils, sorg…
Storability of maize grain is constrained by two postharvest insect pests namely the maize weevil (Sitophilus zeamais) and larger grain borer (LGB) (Prostephanus truncatus). Host plant resistance is the most economic way to manage such pes…
This thesis contains four mutually reinforcing studies conducted with the aim of identifying the most effective secondary morphological traits and approaches that can be used to efficiently select for high yielding and drought tolerant mai…
Bean anthracnose, caused by Colletotrichum lindemuthianum (Sacc. et. Magn) Lams.Scrib., is one of the most widespread and economically important fungal diseases of the common bean. It has a high genetic variability which renders single gen…
Finger millet [Eleusine corocana (L) Gaertn.] is a staple cereal, widely cultivated in the eastern, northern, northwestern, and southwestern parts of Uganda and in many other semi-arid regions of Eastern and Southern Africa as well as Sout…
Uganda’s capture fisheries are dwindling in supplies. With a population growth rate of 3.2%, an expected annual consumption of 580,234 tonnes with supplies limited to only 330,000 tonnes, creates a consumption gap of above 240,000 tonnes p…
The aim of the study was to investigate how Agricultural Indigenous Knowledge (AIK) is documented and disseminated and identified challenges faced in its management for sustainable food security in Soroti District. The objectives included:…
Climate change adaptation is considered an appropriate response to climate change and variability, especially for smallholder farmers to enhance resilience or reduce vulnerability to its effects. However, the response decisions and actions…
Stem rust disease caused by Puccinia graminis f. sp. tritici (Eriks and E. Henn) poses the greatest threat to global wheat production due to the emergence of a highly virulent race of the Puccinia graminis f. sp. tritici Ug99 race and its …
This study was carried out with the following objectives i) to characterise the cropping systems; ii) to identify existing soil and water conservation practices in the Lake Kivu basin and iii) to determine the magnitude of soil, runoff and…
Common bean (Phaseolus vulgaris L.) is one of the most widely grown legume crops for food and income by small holder farmers in Uganda. Despite its importance, bean production is still constraint by angular leaf spot (ALS), which still cau…
Common bean (Phaseolus vulgaris.L) production has been greatly affected by the bean stem maggot (BSM), an insect pest which exists in 3 species namely O.spencerella, O.phaseoli and O.centrocematis. Among the 3 species, O.spencerella and O.…
Sweet sorghum (Sorghum bicolor (L.) Moench) is a cultivated sorghum recognized as potential alternative source of bio-fuel due to its high fermentable sugar content in the stalk. Sweet sorghum has elicited the interest of breeders due to i…
Cotton in Uganda is attacked by many insect pests causing yield losses of between 30 – 80%. The biggest losses are caused by members of Lepidoptera. Use of chemical insecticides have been by been used as an approach to address the pest pr…
Finger millet (Eleusine coracana (L.)Gaertn.ssp. coracana) is an important food, food security and cash crop in eastern and southern Africa where small-scale farmers grow it in low input farming systems. The crop has food security, nutriti…
Temporally and spatially poor rainfall distribution in sub-Saharan Africa (SSA) has had serious repercussions on crop production resulting in high negative consequences on food production and financial returns for farmers. Harvesting and s…
Sorghum (Sorghum bicolor, L. Moench) is a key cereal crop to over 500 million people in semi arid tropics. Sorghum production in subsistence farming is low and ranges between 0.5– 0.8 t/ha compared to potential yields of 10 t/ha. Diseases,…
A study to establish bioeconomic options for economic exploitation of Chambo (Oreochromis spp.) and Kambuzi (small Haplochromine cichlids) fisheries of Lake Malombe was conducted between 2010 to 2012. Three models, logistic regression, Uni…
Climate variability and change which manifests itself through increase in temperature and frequent occurrence of floods and droughts is increasing agro-pastoralists vulnerability and inability to sustain their sources of livelihood, henc…
Development of sustainable termite management interventions in any ecosystem requires adequate knowledge of the ecological interactions between termites and other ecosystem components, diversity and composition of termite assemblages and p…
Medicinal plants are important natural resources in drylands for communities on which their livestock and other forms of livelihoods have been sustained based on traditional knowledge. However, lack of scientific basis of their biological …
The impact of land use and cover change on soil quality and pasture production was investigated in the rangelands of Nakasongola District, Uganda. Landsat (TM) images of 1986 and 1990 and Landsat (ETM+) of 2000 and 2004 for Nakasongola Dis…
Influence of soil fertility management on Striga reproduction and sorghum grain yield in semiarid areas of Tanzania. PhD thesis, Faculty of Agriculture, University of Nairobi. Witchweed (Striga), a root parasite, has become a major biologi…
