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Now showing items 17381-17390 of 18138
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 ...
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 ...
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 ...
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 ...
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 ...
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 Soil Fertility and Intercropping on the Incidence and Severity of Root Rot Diseases of Common Bean (Phaseolus vulgaris L.)
(University of Nairobi, 2017)
High occurrence of root rots is attributed to continuous and inappropriate cropping systems, low soil fertility levels, low moisture in soil, use of farm saved seeds and use of root rot susceptible bean (Phaseolus vulgaris ...
Efficacy of Plant Extracts and Antagonistic Fungi in Managing Tomato Pests and Diseases under Field Conditions
(University of Nairobi, 2017)
The objective of this study was to evaluate the effectiveness of plant extracts and fungal antagonists in managing
pests and diseases of tomato under field conditions. The extracts and the antagonists were evaluated for ...
The use of near infrared transmittance kernel sorting technology to salvage high quality grain from grain downgraded due to Fusarium damage
(University of Nairobi, 2017)
The mycotoxins associated with specific Fusarium fungal infections of grains are a threat to global food
and feed security. These fungal infestations are referred to as Fusarium Head Blight (FHB) and lead to
Fusarium ...
Effect of rangeland rehabilitation on the herbaceous species composition and diversity in Suswa catchment, Narok County, Kenya
(University of Nairobi, 2017)
Introduction: Land degradation is a serious environmental problem of our time. In Kenya, it is estimated that 30%
of the total land mass is severely degraded. Suswa catchment within Narok County is a good example with ...