C.O. Omondi

ORCID: 0009-0007-0145-7191
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About
Contact & Profiles
Research Areas
  • Coffee research and impacts
  • Plant Pathogens and Fungal Diseases
  • Cocoa and Sweet Potato Agronomy
  • Plant Pathogenic Bacteria Studies
  • Plant Virus Research Studies
  • Plant pathogens and resistance mechanisms
  • Nematode management and characterization studies
  • Organic Food and Agriculture
  • Genetics and Plant Breeding
  • Sugarcane Cultivation and Processing
  • Energy and Environment Impacts
  • Legume Nitrogen Fixing Symbiosis
  • Forensic Entomology and Diptera Studies
  • Agricultural Practices and Plant Genetics
  • African Botany and Ecology Studies
  • Plant Pathogens and Resistance
  • Global trade, sustainability, and social impact
  • Plant tissue culture and regeneration
  • Agriculture and Rural Development Research
  • Genetically Modified Organisms Research
  • Urban Planning and Landscape Design
  • Seed Germination and Physiology
  • Plant biochemistry and biosynthesis
  • Flowering Plant Growth and Cultivation
  • Consumer Retail Behavior Studies

Kenya Agricultural and Livestock Research Organization
2016-2022

Coffee Research Institute
1994-2016

ABSTRACT Coffee ( Coffea spp.) is one of the world's most valuable agricultural export commodities produced by small‐scale farmers. Its germplasm, which holds useful traits for crop improvement, has traditionally been conserved in field genebanks, presents many challenges conservation. New techniques vitro and cryopreservation have developed to improve long‐term conservation coffee. But a question remains as whether these new are more cost effective than collections efficient at reducing...

10.2135/cropsci2008.12.0736 article EN Crop Science 2009-10-24

10.1023/a:1012056622969 article EN Euphytica 2001-01-01

Pathogenicity tests were performed on 11 genotypes of Coffea arabica using single-isolate suspensions Colletotrichum Kahawae obtained from 90 monoconidial isolates. The objective this study was to estimate the proportion pathogenic variation corresponding 10 differences in aggressiveness and virulence (races). A large part pathogen population due aggressiveness. differential effects too small suggest conclusively that races exist. This paper discusses possible causes for observed interaction...

10.1046/j.1439-0434.2000.00464.x article DE Journal of Phytopathology 2000-01-01

Nitrogen fertilizers applied either in single or split application is the main agronomic inputs to sugarcane production.The objective of this study was determine effects nitrogen fertilizer rates and on yield first ratoon crop late (CO 421) early maturing (D 8484) varieties.Analysis variance at p≤0.05 indicated that mean yields were 117.6 124.3 ton cane per hectare for CO* 421 D* 8484 respectively harvesting.This showed there no significant difference rate yield.

10.15580/gjas.2013.3.102712155 article EN Greener Journal of Agricultural Sciences 2013-03-20

Abstract General and specific combining ability effects for resistance to coffee berry disease ( Colletotrichum coffeanum Noack sensu Hindorf) in Coffea arabica variety ‘Ruiru 11’ its parents were estimated according the North Carolina Design II. A set of nine male eleven females crossed all possible combinations generate ninety‐nine single cross hybrids constituting variety. The their hybrid progenies screened mean score data analyzed genetic variation. contributions total variance low...

10.1111/j.1439-0523.1994.tb00681.x article EN Plant Breeding 1994-04-01

Robusta coffee yields higher than Arabica coffee. However, it is limited by the inferior cup quality. The biochemical compounds found in interact and determines final objective of study was to characterize Arabusta hybrids. Twenty genotypes including hybrids, backcrosses, were established at KALRO-Alupe (Busia) Siaya -ATC year 2015. Coffee cherry harvested processed 2018 green beans analysed for sucrose, oil, trigonelline, caffeine chlorogenic acids using HPLC soxhlet method. There...

10.21475/ajcs.21.15.02.p2581 article EN Australian Journal of Crop Science 2021-02-03

Organoleptic and biochemical attributes in the coffee bean determine final cup quality of which is a critical factor price determination market. The study aimed at determining genetic variability green bean. trial sites were located Siaya Busia counties Kenya. Nineteen different genotypes established included Arabusta hybrids, backcrosses Arabica to tetraploid Robusta, coffee, Robusta coffee. Randomized Complete Block Design with three replications each site was used conducting experiment....

10.5539/jas.v14n2p95 article EN Journal of Agricultural Science 2022-01-12

Productivity of sugarcane in Kenya has declined despite use recommended production practices including introduction elite high yielding and early maturing varieties. Farmers continue to agronomic inputs for the old low late varieties on these Nitrogen fertilizer rates single or split doses are still yet their appropriateness new remains untested culminating decline productivity Kenya. Currently, cane payment is based delivered milling weight. The industry plans change a combination quality...

10.9734/ijpss/2021/v33i1630532 article EN International Journal of Plant & Soil Science 2021-07-12
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