Browsing Doctoral Degrees (Plant Breeding) by Title
Now showing items 89-108 of 128
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Genetic improvement of pigeonpea [Cajanus cajan (L.) millspaugh] for yield, earliness and resistance to Fusarium wilt (Fusarium udum Butler) in Malawi.
(2020)Pigeonpea [Cajanus cajan (L.) Millspaugh, 2n=2x=22] is a one of the important food legumes in Sub-Saharan Africa and Asia. Malawi is a major pigeonpea grower in Africa with production of 403,519 tonnes produced in 248,400 ... -
Genetic improvement of Zambian maize (Zea mays L.) populations for resistance to ear rots and a survey of associated mycotoxins.
(2009)Maize ear rots are among the most important impediments to increased maize production in Africa. Besides yield loss, they produce mycotoxins in their host whose contamination has been linked to several human and animal ... -
Genetic studies and recurrent selection for nematode resistance in maize.
(2010)Plant-parasitic nematodes cause grain yield loss in maize. The most important genera of plant-parasitic nematodes demonstrated to be of economic importance to maize are Pratylenchus spp., Meloidogyne spp. and Heterodera ... -
Genetic studies of grain and morphological traits in early generation crosses of Malawi rice (Oryza sativa L.) Landraces and NERICA varieties.
(2010)Rice (Oryza sativa L.) is the second most important cereal crop in Malawi. Rice productivity in the dominant (85%) rainfed ecosystem is very low, with mean yield of only 1.4 t ha-1. Farmers plant traditional landraces that ... -
Genetic studies of quantitative and quality traits in rice under low and high soil nitrogen and phosphorous conditions, and a survey of farmer preferences for varieties.
(2010)Rice is an important crop ranking third after maize and wheat in Kenya. Its demand is growing at 12% per annum, while production has stagnated for quite a number of years. This situation has lead to consumption outstripping ... -
Genetic studies of secondary traits and yield heterosis in maize under high and low nitrogen conditions, incorporating farmer perceptions and preferences for varieties.
(2010)In Tanzania, 85% of the population depend on maize for food security; it provides 60% of their dietary calories and about 50% of their protein. It is not only a source of food security, but is also a cash crop on which ... -
Genetic studies on drought tolerance and grain shattering in rice.
(2010)Grain yield of rice can be enhanced by breeding for drought tolerance and optimum shattering. New generations of rice, the interspecific fixed lines known to carry more drought tolerance traits, are a potential source for ... -
Genetic studies on head architecture, adaptation and blast resistance of finger millet in Uganda.
(2013)Finger millet is the second most important cereal in Uganda after maize. The yields however, have remained low due to several constraints, such as finger millet blast disease and limited technology options. Therefore ... -
Genetic studies on host plant resistance to Mexican bean weevil (Zabrotes subfasciatus Boheman) in Ethiopian common bean (Phaseolus vulgaris L.) germplasms.
(2017)The common bean (Phaseolus vulgaris L.) is the second most important food legume in Ethiopia. It is the most important cash crop for the smallholder farmers and has a significant impact on the national economy. However, ... -
Genetic studies on host-plant resistance to bean fly (Ophiomyia spp.) and seed yield in common bean (Phaseolus vulgaris) under semi-arid conditions.
(2010)Bean fly (Ophiomyia spp.) is a major pest of common bean (Phaseolus vulgaris L.) throughout eastern and southern Africa. In the semi-arid areas, apart from drought, the insect pest is reported to cause high crop losses up ... -
Genetic study of cowpea (Vigna unguiculata (L.) Walp) resistance to Striga gesnerioides (Willd.) vatke in Burkina Faso.
(2010)In Burkina Faso, the existence of different races of Striga gesnerioides (Willd.) Vatke, with apparent variable aggressiveness on cowpea (Vigna unguiculata (L.) Walp) renders the breeding task very complex. Therefore, a ... -
Genetic, agro-morphological diversity and genome- wide association studies in sweetpotato (ipomoea batatas (L) lam.) accessions from Zimbabwe.
(2021)Abstract available in PDF. -
Improving resistance to Fusarium root rot [Fusarium solani (Mart.) Sacc. f. sp. phaseoli (Burkholder) W.C. Snyder & H.N. Hans] in common bean (Phaseolus vulgaris L.)
(2008)Fusarium root rot (FRR) disease, caused by the fungus Fusarium solani f. sp. phaseoli (FSP), is an important soil-borne disease reducing common bean (Phaseolus vulgaris L.) yields, and hence food security, in Uganda and ... -
Increasing the resilience of elite rice cultivars to sheath rot (Sarocladium oryzae [(Sawada) W. Gams & D. Hawksw]) in Rwanda through breeding for resistance.
(2016)Abstract available in PDF file. -
Inheritance of post-harvest pest resistance and genetic analysis of combining drought, maize lethal necrosis and maize weevil resistance in tropical maize germplasm.
(2020)Drought stress, maize lethal necrosis (MLN) and storage pests, mainly maize weevil (Sitophilus zeamais Motschulsky) and larger grain borer (Prostephanus truncatus Horn), are among the most important maize production ... -
Integrated Striga management in Sorghum through resistance breeding and biocontrol in the semi-arid regions of Tanzania.
(2017)Abstract available in PDF file. -
Integrating genetic resistance with biocontrol against rice blast and drought.
(2015)Annual demand for rice in Liberia far outstrips local production, mainly as a result of rice blast and drought. The use of resistant cultivars has been widely considered as the most economical means of controlling the ... -
Integrating sorghum [sorghum bicolor (L.) Moench) breeding and biological control using fusarium oxysporum against striga hermonthica in Ethiopia.
(2013)Sorghum [Sorghum bicolor (L.) Moench] is a major food security crop for millions of people in sub-Saharan Africa and the fourth most important crop in Africa. The potential sorghum yields are limited due to a number of ... -
Investigation of heterotic patterns and genetic analysis of Downy mildew resistance in Mozambican lowland maize (Zea mays L.) germplasm.
(2010)In Southern Africa and Mozambique, tropical lowland accounts for 22% and 65%, respectively, of area under maize production, but grain yield is compromised by downy mildew disease (DM, which is caused by Peronosclerospora ... -
Manipulating morphological traits of cassava to enhance host plant resistance and biological control of cassava green mite in Zambia.
(2013)Understanding direct and indirect defense mechanisms that enhance host plant resistance (HPR) and biological control is critical for successful development of an integrated pest management (IPM) approach. Cassava green ...