Browsing Doctoral Degrees (Plant Breeding) by Title
Now showing items 39-58 of 128
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Breeding, evaluation and selection of Cassava for high starch content and yield in Tanzania.
(2009)High starch content is an important component of root quantity and quality for almost all uses of cassava (flour, chips, and industrial raw material). However, there is scanty information on genetic variability for dry ... -
Cassava breeding through complementary conventional and participatory approaches in western Kenya.
(2011)Participation of farmers in plant breeding programmes has been reported to increase breeding efficiency. Farmers’ participation bridges the gap between variety development and dissemination and provides an opportunity ... -
Characterisation of Taro (Colocasia Esculenta (L) Scott) germplasm collections in South Africa : towards breeding an orphan crop.
(2017)Amadumbe (Colocasia esculenta), better known as taro, is a traditional root crop widely cultivated in the coastal areas of South Africa. Taro is showing potential for commercialisation. However, very little is known about ... -
Characterization and genetic analysis of maize germplasm for resistance to northern corn leaf blight disease in Tanzania.
(2012)The majority of farmers in Tanzania have not yet adopted modern maize varieties and still cultivate landraces and open pollinated varieties (OPVs) with low production potential and susceptible to diseases like maize ... -
Characterization of sorghum [Sorghum bicolor (l.) Moench] parental lines and prediction of their hybrid performance under simulated water and population density stress.
(2006)Sorghum breeders have not made much yield improvement in new sorghum varieties in Kenya since Serena in was released in the late 1960s. KARI Mtama-1 which was released in 1993 has no yield advantage over Serena. A yield ... -
Combining ability and heterosis for stem sugar traits and grain yield components in dual-purpose sorghum (Sorghum bicolor L. Moench) germplasm.
(2009)Sorghum is the fifth most important cereal crop in the world and ranks third in Africa, and it is potentially the number one cereal for the semi-arid environments in sub-Saharan Africa. Sorghum varieties have been developed ... -
Combining Chilo partellus Swinhoe and Sitophilus zeamais Motschulsky insect pest resistance in early maturing maize hybrids.
(2016)Abstract available in PDF file. -
A comparative analysis of conventional and marker assisted selection methods in screening for resistance to maize (Zea mays L.) streak virus disease.
(2006)Maize (Zea mays L.) streak virus disease (MSD) is the most important virus disease in Africa but farmers are unaware of its status. A project was initiated to assess the current status of MSD and to breed for its resistance. ... -
Consumer acceptability, adaptability and genetic analysis of orange pro-vitamin A maize hybrids in KwaZulu-Natal province of South Africa.
(2018)Diets of most people in sub-Saharan Africa are composed of mainly cereals that frequently lack most nutrients, such as Vitamin A. Vitamin A deficiency is the leading cause of preventable childhood blindness and increases ... -
Determining heterotic orientation of South African maize inbred lines towards USA temperate and CIMMYT- tropical testers and genetic analyses under contrasting environments.
(2018)Drought and low soil fertility are major abiotic stresses limiting maize productivity in South Africa. Developing drought and low nitrogen-tolerant varieties is part of a long-term solution to improved maize productivity ... -
Developing pre-breeding tools for the miracle plant [Synsepalum dulcificum (Schumach & Thonn.) Daniell]: implications for genomic selection strategies optimization.
(2022)The miracle plant [Synsepalum dulcificum (Schumach & Thonn) Daniell] is an evergreen orphan shrub species originating in West Africa that produces red berries known as miracle fruits. As a unique natural source of ... -
Development and application of SNP marker for low phytic acid gene (Ipa1-1) with studies on the effect of low phytic acid on seed germination, vigour and yield in maize.
(2010)Maize grain contains high levels of phytic acid which chelates iron, zinc and other micronutrients as it passes through the digestive systems of monogastric consumers reducing their bioavailability. Breeding for low phytic ... -
Development of an advanced generation breeding strategy for Eucalyptus Nitens (Deanne and Maiden) Maiden.
(2013)The objective of this study was to develop and implement an advanced generation breeding programme at the Institute for Commercial Forestry Research (ICFR) to manage and integrate the many and disjunct breeding and ... -
Development of cassava (Manihot esculenta Crantz) cultivars for resistance to cassava mosaic disease in Zambia.
(2011)Despite the increasing number of farmers growing cassava in Zambia, yield per hectare has remained low at 5.8 t ha-1. The major constraints contributing to low yields are pests and diseases of which cassava mosaic disease ... -
Development of high yielding and early maturing potato (Solanum tuberosum L.) genotypes with resistance to Phytophthora infestans in Uganda.
(2017)Abstract available in PDF file. -
Development of high yielding pigeonpea (Cajanus cajan) germplasm with resistance to Fusarium wilt (Fusarium udum) in Malawi.
(2007)Pigeon pea [Cajanus cajan (L.) Millspaugh] is a very important grain legume crop for food, cash and firewood in Malawi. However, its production is affected by Fusarium wilt (Fusarium udum Butler), which causes up to 100% ... -
Development of high yielding potato (Solanum tuberosum L.) : genotypes with resistance to bacterial wilt (Ralstonia solanacearum) for the Kenyan highlands.
(2014)Bacterial wilt caused by Ralstonia solanacearum race 3 (R3bv2A), is an important disease contributing to low potato yields in temperate areas and tropical highlands. In Kenya, the disease is widespread in most potato growing ... -
Development of pigeonpea [Cajanus cajan (L.)] hybrids for the semi-arid Kenya.
(2011)Pigeonpea (Cajanus cajan (L.) Millsp.) is cultivated by many farmers in the semi-arid areas of Kenya as a source of food and cash. However, the yields have remained low, ranging between 500 to 800 kg haˉ¹. Apart from ... -
Diversity analysis and breeding for maize weevil (Sitophilus zeamais Motschulsky) and larger grain borer (Prostephanus truncatus horn) : resistance in productive maize germplasm in Malawi.
(2014)Maize (Zea mays L.) is the main staple food crop in Malawi grown by 97% of small holder farmers. However, the potential maize yields are reduced by postharvest losses of grain in storage due to the larger grain borer ... -
Diversity analysis of South African sorghum genotypes using agronomic traits, SSR markers and protein content and amino acid composition.
(2015)Sorghum is an important food security crop and ranks fifth after wheat, rice, maize, and barley in total area of production globally. In South Africa, sorghum is mainly grown for food and livestock feed both by small-holder ...