Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"mosaic disease"”.
-
A study of the super-abundant Bemisia tabaci (Gennadius) species complex (Hemiptera: Aleyrodidae) in cassava mosaic disease pandemic areas in Tanzania
… populations. It is the vector of cassava mosaic geminiviruses (CMGs) causing cassava mosaic (CMD) disease to cassava (Manihot esculenta Crantz). After the outbreak and spread of a severe CMD from Uganda to several East and Central African countries, the production of cassava has been …
-
Genetic analysis of soybean reactions to soybean mosaic virus
The soybean [<i>Glycine max</i> (L.) Merr.] mosaic disease, caused by soybean mosaic virus (SMV), is one of the most important soybean diseases in many areas of the world. This research, conducted in four separate studies, was designed to identify and characterize new sources of genes for …
-
The characterisation of Ornithogalum mosaic virus
Ornithogalum mosaic virus (OMV) is the most serious pathogen of commercially grown Ornithogalum and Lachenalia species in South Africa. Although omithogalum mosaic disease was first reported as early as 1940, attempts to purify or characterise the virus(es) were not successful. The extremely …
-
An ex ante economic impact analysis of developing low cost technologies for pyramiding useful genes from wild relatives into elite progenitors of cassava
… cassava varieties with tolerance to cassava mosaic disease, green mites, whiteflies, and delayed post-harvest deterioration. It compares the economic benefits of marker-assisted selection (MAS) to conventional breeding for these traits. Results indicate that varieties developed with …
-
Improving Community Livelihoods through Improved Cassava Production for Matanzi Village Community in Mkuranga District, Coast Region
… practices such as poor spacing, poor disease control, small areas/plots of cultivation and lack of reliable market for agricultural product. Matanzi village community have resources but they are not empowered to utilize their resources and available opportunities for their social …
-
Molecular diagnostics, genetic diversity and generating infectious clones for cassava brown streak viruses
Cassava brown streak disease (CBSD) threatens cassava production in eastern and southern African countries. Diagnostic protocols currently available for the causal agents of CBSD, Cassava brown streak virus (CBSV) and Cassava brown streak Uganda virus (CBSUV), were unreliable but were urgently …
-
Application of CNN-gcForestCS to cassava leaf image classification
… affected by pathogenic infection with cassava mosaic disease (CMD) posing the greatest threat to cassava farmers in Africa and Asia. Given that developing nations are estimated to be hit hardest by climate change and projected to have the largest population increases in coming decades, …
-
Diversity and role of bacterial endosymbionts infecting the cassava whitefly, Bemisia tabaci (Gennadius) in Sub-Saharan Africa
… on insect population dynamics and cassava virus disease epidemics in sub-Saharan Africa (SSA). The genetic diversity of field-collected cassava whiteflies, Bemisia tabaci, and their endosymbionts from Tanzania, Uganda, Malawi and Nigeria were described. Cassava in these countries is infested by …
-
Evolutionary studies of wheat streak mosaic-associated viruses and characterization of the wheat virome
Wheat viruses including Wheat streak mosaic virus (WSMV), Triticum mosaic virus (TriMV), High Plains wheat mosaic emaravirus (HPWMoV), and Barley yellow dwarf virus (BYDV) cost substantial losses in crop yields annually. Although there have been extensive studies conducted on known wheat viruses, …