Books

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Africa Peace Journalism: A Manual for Media Practitioners in East Africa
(2019) Rongo University’s Center for Media, Democracy, Peace and Security (CMDPS)
Agribusiness in Africa: a contextualized manual for tertiary institutions and development.
(The African Network for Agriculture, Agroforestry and Natural Resources Education (ANAFE), 2017-06) Obiri, J. A. F.; Driver, M.F; Onyekwelu, J. C; Dramé-Yaye, A .; Ramasawmy, B; Akpoko, J. G; Nyamai, D.
This book is concerned with the status and potential of agribusiness in Africa. Studies by the World Bank (2013), United Nations Industrial Development Organization (UNIDO) (UNIDO, 2011), Food and Agriculture Organization (2011) demonstrate that agriculture and agribusiness have been Africa’s largest economic and fastest-growing sectors since the mid-1990s. It is estimated that Africa now earns an average of 24 per cent of its annual growth from its farmers and their commodities (FAO, 2007; 2011; World Bank 2013). The sectors accounts for 30 to 40 % of Africa’s total GDP and almost 60 % of its total export earnings (FARA, 2014). It is also estimated by the World Bank (2013) that agriculture and agribusiness together could command a US$ 1 Trillion in Africa’s regional economy by 2030. The World Bank further predicts that agriculture and agribusiness in many African countries could trigger the kind of economic transformation seen in many emerging economies in other regions of the world such as Thailand, Indonesia, Brazil, Colombia, and Ukraine. As we strive to concretize agribusiness as one of the key economic drivers and pillars of Africa’s growth, it is imperative to analyze successful case studies of agribusinesses to provide us with valuable lessons for building a sound agribusiness sector in Africa. Although Africa’s agribusiness potential is still largely unexploited, there are positive indications that Africa will play a very important role in global food and agricultural markets given that Africa has more than half of the world’s uncultivated, but agriculturally suitable land, and has scarcely utilized its extensive water resources. Moreover, Africa’s agribusiness development prospects are set to be driven by the growing population, incomes, urbanization and cities, and development of domestic markets. These factors are already resulting in the setting up of agricultural-based industries that can address the needs for employment as well as food security issues in Africa. This book therefore aims to provide a solid foundation for students and practitioners in agribusiness to understand and develop systematic solutions to complex agribusiness management challenges in both strategic planning and operational execution within the Africa business, economic and social environment.
Effects of cultivar, isolate and environment on resistance of wheat to septoria tritici blotch in Kenya
(1996) Arama, Peter
The research described in this thesis focused on the characterization of some of the factors that influence disease assessment, development and expression of resistance in wheat cultivars to septoria tritici blotch. Earliness appeared to have a strong effect and tallness a small effect on disease severity (DS). A regression equation derived was used to correct the DS in the entries. Another method that gave good disease assessment was to group the cultivars according to their earliness. It appeared that the disease developed in each earliness group at the same rate. The importance of interpiot interference in assessing septoria resistance in wheat was studied. There was no indication of interpiot interference. The Nitrogen (N) level is another factor that may affect disease assessment. In Kenya there was an increase in DS on cultivars exposed to more N while in The Netherlands there was no similar increase in DS. When an inoculum mixture or single isolates are used for inoculations, the ranking of the cultivars was essentially not affected, indicating that inoculum mixtures can be used effectively in screening wheat genotypes. The correlation coefficients between the DS at the seedling and the adult plant stages was low. Thus resistance assessed at the seedling stage could not fully explain adult plant resistance. Isolates from Kenya and The Netherlands were tested on wheat seedlings. It was concluded that there was variation in virulence (and so in race-specific resistance in the host) of Septoria tritici populations within both countries. The strong cultivar x isolate interactions observed on wheat seedlings was also observed on adult plants in the field. F6 lines of 36 crosses were evaluated in the field. Transgressive segregation towards more resistance and or more susceptibility occurred in most crosses. It can be said that a fair number of genes operating in an additive manner and epistasis are involved.
The Environmental Crunch in Africa
(2018) Abbink, Jon
The influence of temperature on infection of rhynchosporium secalis on resistant and susceptible barley varietie
(1987) Arama, Peter;
The upsurge o f b a rle y s c a ld has been o f much con cern to barley g row ers, breed ers and p a th o lo g is ts in Kenya. Y ield lo s s e s due to s c a ld average 30% though lo s s e s upto 52% have been r e co r d e d . V a r ie tie s re le a se d in the p a st w ith r e s is ta n c e to s ca ld have o f la t e succumbed to Rhynchosporium s e c a lis . In th is s tu d y , in f e c t io n by an i s o l a t e o f Rhynchos porium s e c a lis on two p o p u la rly grown b a rle y v a r ie t ie s 'B im a' and 'P r o c t o r ' was in v e s tig a te d at d ifferen t tenperatures . 'Bima' was resistant whilst 'Proctor' was highly susceptible to scald in the fie ld . The two varieties were grcwn in p lastic pots in the greenhouse and inoculated 21 days la ter. Inoculated plants were placed in a Vindon growth chanber whose inside tenperature was set at 10°C, 15°C, 20°C, 25°C and 30°C respectively. Barley varieties in the gernplasm were also tested for scald resistance at two-leaf stage in the greenhouse using Nj oro isola te o f R. Sdcalis . Results showed that infection o f R. secalis started with germination o f germ tubes which grew along the leaf surfaces before forming appressoria. The d iffe re n tia l stain periodic acid-Schiffs reagent stained deep red 'haloes' on lea f surfaces around penetration sites . These factors o f conidia germination, appressoria formation and penetration were sim ilar in the two varieties. Optinum tenperatures for conidia germination, growth o f germ tubes and scald lesion development were found to be 22.0°C, 23.5°C and 20.0°C respectively. Higher tenperatures than optinum were not favourable and there was no infection. (ix) occuring at 30°C. After successful penetration, sub-cuticular hyphae were formed thereafter branching profusely within 'Proctor' leaves and sparsely within 'Bima' leaves. Scald symptoms appeared earlier in 'Proctor' plants than 'Bima' between 10 and 20°C. Scalded leaf areas and sporulation within scald lesions were significantly less in 'Bima' than in 'Proctor' between 10 and 25°C. The factors of infection involving suppression of germ tube growth, sparce mycelial development, longer incubation period, chlorotic zones preceeding scald lesions, less percent scalded l_^f areas and less sporulation within lesions of 'Bima' leaves than in 'Proctor' leaves were indicative of partial resistance in 'Bima' whereby the host allowed infection to occur but the rate of disease progress was lowered. The study indicated that testing for resistance at two-leaf stage in the green house gave distinct reaction types. The techniques were recommended for future use in identifying resistance sources to barley scald as well as evaluating segregating populations. Complete resistance to scald was found in the varieties Bey, Forrajera and Abyssinian (Cl. 3940). Resistance in one or two of these varieties should be incorporated into the agronomically well adapted and high yielding commercial barley variety 'Bima' to make it even more resistant.
Kiswahili katika elimu ya juu
(Moi University Press, 2019) Mohochi, Ernest Sanga; Mukuthuria, Mwenda; Ontieri, James Omari
Koja la Taaluma za Insia
(Karljamer Publishers Limited, 2019) Ponera, Athumani S; Badru, Zuhura A.
Lugha na Fasihi Katika Mshikamano wa Kitaifa na Uwianobarani Africa
(Moi University Press, 2019) Kobia, John; Kandagor, Mosol; Mwita, Leonard Chacha
Mitaala ya Kiswahili Katika Vyuo Vikuu vya Afrika Mashariki
(2019) Simala, Kenneth I
Mwanga wa Lugha
(Moi University Press, 2019) Nyandiba, Caren
Peace Journalism in East Africa A Manual for Media Practitioners
(Routledge is an imprint of the Taylor & Francis Group, an informa business, 2020) Ogenga, Fredrick
Uwezeshwaji wa Kiswahili kama wenzo wa maarifa
(Moi University Press, 2019) Kobia, John M; Kandagor, Mosol; Mwita, Leonard Chacha; Maitaria, Joseph Nyehita

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