Browsing Doctoral Degrees (Plant Breeding) by Title
Now showing items 3-22 of 113
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Breeding and evaluation of cassava for high storage root yield and early bulking in Uganda.
(2013)Cassava (Manihot esculenta Crantz), is the world’s most widely grown starch storage root crop. It is a principal food staple in sub-Saharan Africa where it accounts for approximately one-third of the total production of ... -
Breeding cowpea (Vigna unguiculata (L.) walp.) for improved drought tolerance in Mozambique
(2010)Cowpea yields in Mozambique can be increased through breeding farmers’ accepted cultivars with drought tolerance and stability across environments. A study was conducted in the southern region of Mozambique to: (1) determine ... -
Breeding cowpea (Vigna unguiculata [L.] Walp) for improved yield and related traits using gamma irradiation.
(2016)Cowpea is an important grain legume widely grown in sub-Saharan Africa for food and feed. In Namibia cowpea productivity is considerably low due to a wide array of abiotic and biotic stresses and socio-economic constrains. ... -
Breeding dual-purpose Sweetpotato [Ipomoea batatas (L.) Lam.] varieties in Rwanda.
(2017)Sweetpotato [Ipomoea batatas (L.) Lam] is a multi-purpose crop where the fresh roots are used for human food and aboveground biomass for animal feed. In Rwanda, sweetpotato plays a key role in the mixed crop-livestock ... -
Breeding for ascochyta blight [Phoma exigua var. diversispora (Bubak) Boerema] resistance of the common bean (Phaseolus vulgaris L.) in Rwanda.
(2017)Abstract available in PDF file. -
Breeding for Cassava brown streak resistance in coastal Kenya.
(2008)Cassava (Manihot esculenta Crantz ssp. esculenta) is the second most important food crop and a main source of income for the rural communities with potential for industrial use in the coastal region of Kenya. However, its ... -
Breeding for durable resistance to angular leaf spot (Pseudocercospora griseola) in common bean (Phaseolus vulgaris) in Kenya.
(2014)Common bean (Phaseolus vulgaris L.) is an important legume crop in Kenya and is a cheap source of proteins. The small scale farmers in Kenya produce common bean under low agricultural input systems and this predisposes the ... -
Breeding for durable resistance to Cercospora Leaf Spot diseases in groundnuts (Arachis hypogaea L.) in Tanzania.
(2018)Lack of high yielding groundnut cultivars tolerant to Cercospora leaf spot disease (CLD) and stable across different environments is one of the challenges to groundnut production by smallholder farmers in Tanzania. This ... -
Breeding for resistance against angular leaf spot disease of common bean in the Southern Highlands of Tanzania.
(2016)Abstract available in PDF file. -
Breeding gains diversity analysis and inheritance studies on soybean (Glycine max (L.) Merrill) germplasm in Zimbabwe.
(2013)The soybean programme in Zimbabwe is over seventy years old. However, there is lack of information on breeding gains, genetic diversity, heritability, genetic advance, combining ability, gene action and relationships ... -
Breeding groundnut for resistance to rosette disease and its aphid vector, Aphis craccivora Koch in Malawi.
(2013)Groundnut (Arachis hypogaea L.) is one of the most important legume crops in Malawi. However, production among smallholder farmers has declined in recent years. One of the constraints affecting groundnut production is ... -
Breeding investigations and validation of molecular markers linked with spot blotch disease resistance in wheat (Triticum aestivum L.) germplasm for the rain-fed conditions of Zambia.
(2015)Wheat (Triticum aestivum L.) is an important cereal crop, second after maize in Zambia. Its production during summer rainy season is hampered by several abiotic and biotic constraints. Among the biotic constraints, spot ... -
Breeding investigations for black Sigatoka resistance and associated traits in diploids, tetraploids and the triploid progenies of bananas in Uganda.
(2009)Reduced banana yield owing to black Sigatoka Mycosphaerella fijiensis Morelet is a threat to the livelihoods of Ugandan subsistence farmers who depend entirely on the banana crop for food security. The objectives of this ... -
Breeding investigations for resistance to Phaeosphaeria Leaf Spot (PLS) and other important foliar diseases and a study of yield stability in African maize germplasm.
(2009)Maize (Zea mays L.) yields in the smallholder (SH) farming sector in Southern Africa have remained low. despite the availability of many improved varieties. Among the major constraints contributing to tow yields and ... -
Breeding investigations for salt tolerance in rice incorporating characterisation of salt affected soils and farmers perceptions and preferences for tolerant cultivars in north-eastern Tanzania.
(2010)Rice (Oryza sativa L.) is the principal crop of North Eastern Tanzania but production is threatened by salt affected soils, drought and the use of un-adapted cultivars, among other constraints. Little research and hardly ... -
Breeding investigations of finger millet characteristics including blast disease and striga resistance in Western Kenya.
(2008)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 ... -
Breeding investigations of maize (Zea mays L.) genotypes for tolerance to low nitrogen and drought in Zambia.
(2007)Low soil nitrogen (N) and drought impede maize production in the small-scale farming sector in Zambia; and adoption of new cultivars with improved tolerance might enhance production. This study: a) assessed farmer ... -
Breeding investigations on utility of maize streak virus resistant germplasm for hybrid development in the tropics.
(2014)Maize (Zea mays L.) supports millions of livelihoods in sub-Saharan Africa (SSA) in terms of food and feed. Production of the crop is however limited by several factors, among these, maize streak virus (MSV) disease. ... -
Breeding of sweet potato (Ipomoea batatas (L.) Lam.) for storage root yield and resistance to Alternaria leaf petiole and stem blight (Alternaria spp.) in Uganda.
(2013)Alternaria leaf petiole and stem blight is an important disease of sweetpotato (Ipomoea batatas (L.) Lam.) causing yield losses in both landraces and improved cultivars. The most important species causing economic yield ...