Journal Articles: Recent submissions
Now showing items 2141-2160 of 29939
-
Quality of Farm Saved Maize (Zea mays l.) Seeds and its Effect on Field Establishment
(University of Nairobi, 2018)– Farmer saved seed consist of inappropriate varieties, infected seeds of poor germination potential resulting in low seedling vigor, crop stand and high incidence of diseases leading to poor yield. The study was conducted ... -
Efficiency of Aphid and Thrips Vectors in Transmission of Maize Lethal Necrosis Viruses
(University of Nairobi, 2018)Maize lethal necrosis disease occur in major growing regions of Kenya, causing losses of up to 100% estimated at 50 million US$ in 2014/15. The study was undertaken to evaluate the efficiency of thrips and aphids in ... -
Combining ability of resistance to pod shattering and selected agronomic traits of soybean
(University of Nairobi, 2018)Eight parents Nyala and SB-8, SB-25, SB-93, SB-19, 915/5/12, 835/5/30 and SB-98 were crossed in a diallel mating scheme to generate 28 F1 progenies in a greenhouse at Kabete, University of Nairobi. The F1 and their parents ... -
Effect Of Intercropping Maize-Soybean On Grain Quality Traits In Kenya
(University of Nairobi, 2017)An study was carried out in Kenya to assess the suitability of three promiscuous soybean varieties (SB19, GAZELLE and TGX1990-5F) intercropped with Maize (Duma 43). A randomised complete block design was used replicated ... -
Effect of Intercroping Maize-Soybean on Grain Quality Traits in Kenya
(University of Nairobi, 2018)An experiment was conducted in Kenya to determine the effect of intercropping maize-soybean on soybean grain quality traits. A randomized complete block design replicated three times with seven treatments was used. ... -
Effect of storage methods of cassava planting materials on establishment and early growth vigour
(University of Nairobi, 2018)Cassava (Manihot esculenta Cruntz.) establishment depends on quality of planting materials. The experiment was done to determine the effects storage and variety on crop establishment and early growth vigour. Karembo and ... -
Integration of Seed Dressing, Bio-pesticides and Intercropping to Reduce Pesticide Use in Snap Bean Production
(University of Nairobi, 2018)Insect pests remain a major constratint in the production of snap beans and farmers mainly rely on synthetic chemical pesticides to manage the insect pests and diseases. However, the introduction of maximum residue levels ... -
Seed Potato Production Practices and Quality of Farm Saved Seed Potato in Kiambu and Nyandarua Counties in Kenya
(University of Nairobi, 2018)Potato production in Kenya is mainly constrained by limited supply of quality seed potato tubers. The objective of this study was to determine seed potato handling practices and quality of farm saved seed potato. A survey ... -
Effect of Seed Treatment on Wheat Seed Viability and Vigour
(University of Nairobi, 2018)Use of farm-saved seed without treating encourage accumulation of seed borne pathogens which lead to outbreak and spread of diseases that result in poor emergence, crop stand, vigour, and reduction in yield. This study ... -
Contribution of Seed Quality to the Occurrence of Fungal and Bacterial Diseases of Farmer Produced Common Bean in Varied Agro-Climatic Zones of Western Kenya
(University of Nairobi, 2018)Abstract: Farmers often recycle farm saved bean seeds from previous harvest for planting in subsequent cropping seasons resulting in reduced quality and buildup of seed borne diseases. This study investigated the quality ... -
Seasonal Dynamics and Alternate Hosts of Thrips Transmitted Iris Yellow Spot Virus in Kenya
(University of Nairobi, 2018)Thrips-transmitted Iris yellow spot virus (IYSV) (Family Tospoviridae, Genus Orthotospovirus) is a major constraint to onion (Allium cepa L.) production in Kenya. Determining seasonal patterns of the vector and alternate ... -
Biopesticides and Their Role in Sustainable Agricultural Production
(University of Nairobi, 2018)Biopesticides are derivatives of plants, microorganisms and insects. Substances from plants and animals have been used to manage diseases in crops, animals and humans. Reliance on nature to heal nature is a practise for ... -
Effect of Farm Saved Maize (Zea mays L.) Seed on Intensity of Foliage Diseases
(University of Nairobi, 2019)Majority of farmers in Africa recycle farm saved seed from the previous seasons. Such seed is usually contaminated with disease causing pathogens, has low vigor and result in low yields. This study was, therefore, conducted ... -
Role of maize residues in transmission of maize chlorotic mottle virus and effect on yield
(University of Nairobi, 2019)Maize chlorotic mottle virus (MCMV) is the only established member of the genus Machlomovirus and it is imperative in the development of maize lethal necrosis (MLN) disease. Infection of maize plants with MCMV can cause ... -
Effect of Legume Extracts on Germination, Seedling Health of Beans (Phaseolus vulgaris L.) and Soil Microorganisms
(University of Nairobi, 2019)Application of undecomposed green manure has been reported to cause poor emergence and establishment of common beans in the field. Therefore, to understand the mechanisms’ contributing to the poor crop establishment, the ... -
Influence of socio‐economic and agronomic factors on aflatoxin and fumonisin contamination of maize in western Kenya
(University of Nairobi, 2019)Consumption of maize contaminated with mycotoxins has been associated with detrimental health effects. A farm survey covering 116 push‐pull and 139 non‐push‐pull cropping systems was conducted to determine the socio‐economic ... -
Assessing Sensory Characteristics and Consumer Preference of Legume-Cereal-Root Based Porridges in Nandi County
(University of Nairobi, 2019)Previously, porridge has been cereal based, consumed as a beverage or weaning food. Malnutrition among children has necessitated inclusion of legumes and roots in an effort to boost nutrient density. Therefore, the current ... -
Perpendicular magnetic anisotropy in Mn2VIn (001) films: An ab initio study
(University of Nairobi, 2017)First principles study of the magnetic anisotropy of Mn2VIn (001) films show perpendicular magnetic anisotropy (PMA), which increases as a function of the thickness of the film. Density functional theory (DFT) as implemented ... -
Leveraging HIV advancement in the light of Tuberculosis and Malaria usingSystem Dynamics
(University of Nairobi, 2016)Chronic illnesses to which HIV/AIDS, Malaria and TB is part, have had long term direct impact on the population, socialeconomic status as well as health in general. A lot of commitment ... -
Splitting and Admissible Topologies Defined on the Set of Continuous Functions Between Bitopological Spaces
(University of Nairobi, 2018)In this paper, p-splitting, p-admissible, s-splitting and s-admissible topologies on the sets p−C(Y, Z) and s−C(Y, Z) are defined and their properties explored. exponential functions are introduced in function spaces and ...
