Determining resistance to Fusarium verticillioides and fumonisin accumulation in African maize inbred lines resistant to Aspergillus flavus and aflatoxins

Fusarium verticillioides and Aspergillus flavus cause Fusarium ear rot (FER) and Aspergillus ear rot (AER) of maize, respectively. Both pathogens are of concern to producers as they reduce grain yield and affect quality. F. verticillioides and A. flavus also contaminate maize grain with the mycotoxins fumonisins and aflatoxins, respectively, which has been associated with mycotoxicosis in humans and animals. The occurrence of common resistance mechanisms to FER and AER has been reported.

European settlers in the trans Nzoia district: A case study of racial domination in the Kenya white highlands,1920 - 1946

This case study reconstructs the history of European settlers in Trans Nzoia district from 1920 to 1946. Chapter one serves as an introduction, outlining the historical problem under study and providing a survey of the literature relating to European settlement in Kenya. A summary,.of the methodological approach adopted during research con­ cludes the chapter. Chapter two traces the origins of European settlement in the highlands. The early policies adopted by colonial officials to encourage white immigration are discussed.

Assessment Of Information And Communication Tools (Icts) Used In The Diffusion Of Agricultural Innovations: A Case Study Of Cassava Production In Msambweni, Kwale County, Kenya

In the coastal lowlands of Kenya, cassava is the second most important staple crop after maize. However, its productivity in the region is low due to various reasons which include the use of traditional low yielding varieties by farmers. The high perishability of the roots also limits the duration of handling the unprocessed root.

Incentives for increasing the production of foodcrops among small scale farmers: A case study of Siaya districtca

There has been increasing concern over the food requirements for the country due to the rapid population increase. This is reflected in the various policy measures taken by the government to increase food production and employment opportunities for the population. Siaya District is one of the food deficit districts in the country despite measures which have been taken to increase food production. This study was aimed at finding out why the District is food deficit and what can be done to increase food production.

Risk Aversion By Small Farmers- Can It Be Measured ?results Of A Survey Of 69 Small Farmers In Kabare Location, Kirinyaga District, March 1977

Small farmers in developing countries have to contend with many risks. One of the most important is the risk of less than adequate rainfall. Risk aversion by farmers can be a constraint on the transition from a subsistence. to a cash economy. This paper describes a survey of small farmers in Kabare Location, Kirinyaga District, Kenya which was conducted during March,1977. Results of the survey were used to attempt to measure the farmers' risk aversion. An index of risk aversion was constructed and used to test hypotheses concerning the characteristics of more and less risk averse farmers.

Performance chacterization of a dye-sensitized photovoltaic module under tropical weather conditions: the case of Nairobi, Kenya

The performance of a Dye-sensitized solar module (DSSM) of active area 175.12 cm has been investigated at a tropical climate area at co-ordinates 35.81 ᄚ East, 1.280 South. Investigation of the DSSM's performance parameters; short circuit current density (.Ise), open circuit voltage (Voe), fill factor (FF) and solar-to-electricity conversion efficiency (rf) has been carried out under different values of air mass (AM), irradiance intensities, and the DSSM's surface temperature. As AM increased from 1 to 1.09, Voe reduced linearly by 2.05% from 8.31 V to 8.14 V.

Some aspects of smallholder tea production in Belgut division of Kericho district, Kenya

This study is about smallholder tea growing m Belgut Division of Kericho District, Kenya. The last thirty years in Kenya have witnessed rapid agricultural development contributed largely by the small-scale farm sector. In that context, smallholder tea growing has expanded to such an extent that it now accounts for 58.8 percent of all tea produced in the country, with Kenya being one of the leading tea producing countries in the World.

Molecular characterization of tropical maize inbred lines using microsatellite DNA markers

An insight on diversity and relationships among germplasm is important in any breeding program for crop improvement. The main objectives of our study were to: (i) determine the level of genetic diversity within mid altitude maize inbred lines resistant to weevils, aflatoxin accumulation and drought, (ii) to suggest potential heterotic groups using their genetic structures and distance based on cluster analysis with the aim to generate broad based source germplasm for mid altitude maize breeding program with combined traits of importance against Aflatoxin accumulation.

Short-term influence of compost application on maize yield, soil macrofauna diversity and abundance in nutrient deficient soils of Kakamega County, Kenya

Background and aims Degradation of physical, chemical and biological properties of soils in sub-Saharan Africa mainly results from little or no organic resource application coupled with sub-optimal fertilizer application. A study was conducted over three seasons, from March 2010 to August 2011, to evaluate potential of six organic materials (bagasse, cow manure, filtermud, maize stover, sugarcane straw and Tithonia diversifolia) for compost production and their influence on maize yield and soil fauna diversity.

Effect of nitrogen fertilizer and rhizobium inoculation on growth and yield of intercropped maize (zea mays) and beans (phaseolus vulgaris)

Most studies on intercrops have not been conclusive. Nitrogen is one of the elements that limit maize and bean production. Since symbiotic N fixation may provide a substantial amount ofN in such a system, there is need to study the effect of fertilizer Nand rhizobial inoculation on maize and beans in intercrops. Hence, effects ofN levels and rhizobial inoculation on bean nodulation and yield of intercropped maize and beans were investigated at Kabete Field Station, University of Nairobi over two seasons in two sites.

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