Browsing by Author "Mugah, J.O."
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Item Biotechnology in Kenya, Proceedings of the National Conference on Plant and Animal Biotechnology 1990(Kenya Agricultural Research Institute, 1990) Mailu, A.M.; Mugah, J.O.; Fungog, P.O.; Kenya Agricultural Research Institute; Kenya Agricultural Research InstituteThe Kenya Agricultural Research Institute (KARI) has the national mandate to develop appropriate technologies geared to solving priority productivity constraints facing crop and livestock farmers in this country. KARI has a long history of agricultural research, and considerable achievements have been attained over the years using conventional technologies. A modest start has been made in biotechnology research in KARl centres over the last few years. What is evident from this experience is that biotechnology needs to be focused on the agricultural problems to be solved, and the products and processes required to solve them, rather than on the new technology itself.Item The First National Plant Biotechnology Workshop "Present And Future Biotechnology Research And Applications For Kenya" 1989(Kenya Agricultural Research Institute, 1989) Kenya Agricultural Research Institute; Wambugu, F.M.; Thomas-Compton, M.A.; Mwangi, J.; Mugah, J.O.; Kenya Agricultural Research InstituteLacking in mineral resources which have provided the basis for economic growth in many industrialized countries, Kenya's cash economy must continue to lean heavily on her agricultural potential. Even in industrialized countries, a strong agricultural base has always been associated with economic stability. Kenya's agriculture has so far managed to live up to expectation since independence through the provision of adequate food, foreign exchange earnings and creation of employment opportunities. These achievements have been made possible by the application of technologies developed by conventional or empirical scientific methodologies. It has, however, become apparent (Sessional Paper No. 1 of 1986) that more intensified scientific research is needed, not only to expand and sustain agricultural production, but also to increase the variety and quality of our agricultural products. This calls for strengthening of our scientific institutions, clear definition of research priorities and strategies, and a lot of aggressiveness and entrepreneurship in our research and development system. The major objective of this workshop is for Kenyan plant scientists to share views on the future application of biotechnology research. The scope of the present paper is, however, broader in the sense that it is expected to address agriculture in general, including livestock and the food industry. Fortunately, this task is considerably simplified by the presence here of specialists in various aspects of plant science who will give details of their experiences during the next two days. It is also gratifying to note that livestock scientists are not at this workshop, so that anything outrageous said about biotechnology in livestock research will not be disputed.Item Improved Management of Indigenous Chicken(Kenya Agriculture Research Institute, 2001) Okitol, L.O.; Mukisira, E.A.; Kenya Agricultural Research Institute; Ayiemba, J. A.; Mwariari, M.; Mugah, J.O.; Kenya Agricultural Research InstituteThe KARl Technical Note Series was launched to provide an outlet for the enormous amounts of technical work generated by KARl, some of it dating many years back that has not been published in any of the existing outlets the East African Agricultural and Forestry Journal, the KARl Annual Report, the Highlighter, the KARl updates. The articles may be on completed or on-going work. The outlet carries advisory technical information intended to benefit various stakeholders in research findings generated by the institute. Contribution to the series will be limited to KARl staff and collaborators, at least initially, and should be submitted to the Publications Unit, KARl, and PO Box 57811, Nairobi.Item Lysimeter Water Balance for Bare and Cropped Soil(1979) Stewart, J.I.; Mugah, J.O.Water balance is the algebraic sum of the\total accretion and removal of water within a defined hydrological unit such as a lake a basin, a 1ysimeter, etc., taking into account net changes of storage. Accretion comes mostly from rainfall and irrigation (at least within the tropics), although in extra-tropical areas snow and other forms of precipitation such as dew may be appreciable. Upward movement of water by capillarity from a water table, and lateral seepage from adjacent areas are also possible sources of accretion.Item A Sensitivity Analysis of Parameters Influencing Crop Water Requirements(1995) Mugah, J.O.; Pruitt, W.O.; Hagan, R.M.The modified version of Penman 's formula (Doorebbos and Pruitt 1977) was used to assess the relative significance of the contribution by each of five parameters towards the magnitude of maximum evapotranspiration, ETm, in maize. The parameters tested were leaf area index, net radiation, mean air temperature, wind run, and vapor pressure deficit. Maximum evapotranspiration was found to be most sensitive to changes in leaf area index. Among the climatic parameters tested, net radiation played the most significant role in determining the magnitude of ETm, whereas the contribution from temperature was the least significant. The physical significance of the results is compounded by non-linear changes in the independent variables corresponding to increases in the dependent variables.
