Bio

Biosketch

James W. Muthomi is a Professor of Plant Pathology and Chairman of the Department of Plant Science and Crop Protection, Faculty of Agriculture, University of Nairobi, Kenya. He has 27 years research and teaching experience at the University of Nairobi. Prof. Muthomi holds a BSc in Agriculture (1987-1990), MSc in Plant Pathology (1990-1993) and PhD in Crop Protection (1997-2001).

Publications


2021

Lengai, GMW, Muthomi JW, Mbega ER.  2021.  Effect of plant extracts on important fungal pathogens and germination of tomato seed. International Journal of Biosciences (IJB). 18(4):77-92.
Were, SA, Narla R, Mutitu EW, Muthomi JW, Munyua LM, Roobroeck D, Vanlauwe B, E J.  2021.  Biochar and vermicompost soil amendments reduce root rot disease of common bean (Phaseolous Vulgaris L.). African Journal of Biological sciences. 3(1):176-196.
Wangila, AJ, Gachuiri CK, Muthomi JW, Ojiem JO.  2021.  Biomass yield and quality of fodder from selected varieties of lablab (lablab purpureus l) in Nandi South sub-county of Kenya. Online journal of Animal and Feed Research. 11(1):28-35.
Cheserek, JJ, Ngugi K, Muthomi JW, Omondi CO, Ezekiel NK.  2021.  Green bean biochemical attributes of Arabusta coffee hybrids from Kenya using HPLC and soxhlet extraction methods. Australian Journal of Crop Science . 15(2):201-208.

2020

Cheserek, JJ, Ngugi K, Muthomi JW, Omondi CO.  2020.  Genetic variability, heritability and correlation of quantitative traits for Arabusta coffee (C. arabica L. X Tetraploid C. canephora Pierre). Journal of Plant Breeding and Crop Science. 12(1):50-57.
Cheserek, JJ, Ngugi K, Muthomi JW, Omondi CO.  2020.  Assessment of Arabusta coffee hybrids [Coffea arabica L. X Tetraploid Robusta (Coffea canephora )] for green bean physical properties and cup quality. African Journal of Food Science. 14(5):119-127.
U, B, M M, J M, Mwang’ombe, S G.  2020.  Disease surveillance and farmers’ knowledge of Brachiaria (Syn. Urochloa) grass diseases in Rwanda. African Journal of Range & Forage Science. . https://doi.org/10.2989/10220119.2020.1810774
Kinyungu, TN, Muthomi JW, Subramanian S, Miano DW, Olubayo FM.  2020.  Transmission of viruses causing maize lethal necrosis disease through seed in commercial hybrids and effect on growth in the subsequent crop. Archives of Phytopathology and Plant Protection. DOI:10.1080/03235408.2020.1826720
Njeru, NK, Midega CAO, Muthomi JW, WAGACHA JOHNMAINA, Khan ZR.  2020.  In vitro antifungal activity of Desmodium intortum and D. uncinatum root extracts against growth of toxigenic Fusarium verticillioides and Aspergillus flavus. Australian Journal of Crop Science . 14(12):1942-1948.
Njeru, N, Charles Midega, Muthomi J, Wagacha J, Zeyaur Khan.  2020.  Impact of push–pull cropping system on pest management and occurrence of ear rots and mycotoxin contamination of maize in western Kenya. Plant Pathology . 69(9):1644-1654.

2019

Ogecha, JO, W.Warren, Muthomi JW, Aritua V, Obanyi JN.  2019.  Incidence and Severity of Common Bean (Phaseolus vulgaris L.) Pests in Agro-Ecological Zones and Farming Systems of Western Kenya. East African Agricultural and Forestry Journal. https://doi.org/10.1080/00128325.2019.1599151
Dambolachepa, HB, Muthomi JW, Mutitu EW, Njoroge SM.  2019.  Effects of postharvest handling practices on quality of groundnuts and aflatoxin Contamination. Novel Research in Microbiology Journal. 3(3):396-414.
Njonjo, MW, Muthomi JW, Mwang’ombe AW.  2019.  Production Practices, Postharvest Handling, and Quality of Cowpea Seed Used by Farmers in Makueni and Taita Taveta Counties in Kenya. International Journal of Agronomy. https://doi.org/10.1155/2019/1607535
Mutundi, AN, Muthomi JW, Olubayo FM, Leley PK, Nzuve FM.  2019.  Effect of Farm Saved Maize (Zea mays L.) Seed on Intensity of Foliage Diseases. Journal of Agricultural Science. 11(8):45-57.
Maluk, MD, Kahiu N, Olubayo F, Eric M, Muthomi J, Nzuve F, Ochanda N.  2019.  Combining ability for earliness and yield among south sudanese F1 sorghum genotypes. Journal of Agriculture. 6(3):1-13.
Kinyungu, TN, Muthomi JW, Subramanian S, Miano DW, Olubayo FM’mogi, Maobe MA.  2019.  Role of maize residues in transmission of maize chlorotic mottle virus and effect on yield. International Journal of Biosciences. 14(4):338-349.
Okumu, OO, Muthomi JW, Ojiem J, Narla R, Nderitu JH.  2019.  Effect of Legume Extracts on Germination, Seedling Health of Beans (Phaseolus vulgaris L.) and Soil Microorganisms. International Journal of Plant & Soil Science. 28(1):1-13.
Njeru, NK, Midega CAO, Muthomi JW, WAGACHA JOHNMAINA, Khan ZR, Khan ZR.  2019.  Influence of socio‐economic and agronomic factors on aflatoxin and fumonisin contamination of maize in western Kenya. Food Science and Nutrition. 00:1-11.
Gitau, PW, Kunyanga CN, Abong’ GO, Ojiem JO, Muthomi JW.  2019.  Assessing Sensory Characteristics and Consumer Preference of Legume-Cereal-Root Based Porridges in Nandi County. Journal of Food Quality. https://doi.org/10.1155/2019/3035418

2018

Okumu, O, Muthomi J, Ojiem J, Narla R, Nderitu J.  2018.  Effect of time after incorporation of lablab green manure on root rot pathogens and establishment of common bean (Phaseolus vulgaris L.). World Journal of Agricultural Research. 6(4):113-121.
Okumu, OO, Muthomi J, Ojiem J, Narla R, Nderitu J.  2018.  Effect of lablab green manure on population of soil microorganisms and establishment of common bean (Phaseolus vulgaris L.). American Journal of Agricultural Science. 5(3):44-54.
Mutundi, AN, Muthomi JW, Olubayo FM, Leley PK, Nzuve FM.  2018.  Quality of farm saved maize (zea mays l.) Seeds and its effect on field establishment. International Journal of Research in Agricultural Sciences. 5(6):2348-3997.
Kinyungu, TN, Muthomi JW, Subramanian S, Miano DW, Olubayo FM, Wagura J.  2018.  Efficiency of aphid and thrips vectors in transmission of viruses causing maize lethal necrosis disease. World Journal of Agricultural Research . 6(4):144-152.
Kataliko, RK, Kimani PM, Muthomi JW, Wanderi SW, Olubayo FM, Nzuve FM.  2018.  Combining ability of resistance to pod shattering and selected agronomic traits of soybean. International Journal of Agricultural Policy and Research. 6(10):176-188.
Musungayi, EM, Ngugi K, Ngugi K, Muthomi JW, Were VW, Olubayo FM, Nzuve FM.  2018.  Evaluation of resistance of cassava half-sib progenies to cassava mosaic disease and their agronomic performances in Western Kenya. Journal of Agricultural Science. 10(12):78-91.
Muthomi, J.  2018.  Technologies and innovations in Phytosanitary Systems, 4-8 June. The 2nd Phytosanitary Conference. , KEPHIS Headquarter, Nairobi, Kenya
M.E, Y, Kimani PM, Kimani, P.M; Kimani JM, Muthomi JW.  2018.  Screening Upland Rice Genotypes for Grain Yield and Grain Quality in Kenya. Research journali’s Journal of Agriculture. 5(7):1-15.
Yuga, ME, Kimani, P.M; Kimani JM, Kimani PM, Olubayo MF, Muthomi JW, Nzuve FM.  2018.  Combining Ability and Heterosis for Agronomic and Yield Traits in Indica and Japonica Rice Crosses. Journal of Agricultural Science . 10(12):92-103.
Mbusa, HK, Ngugi K, Olubayo FM, Kivuva BM, Muthomi JW, Nzuve FM.  2018.  The Inheritance of Yield Components and Beta Carotene Content in Sweet Potato. Journal of Agricultural Science. 10(2):71-81.
Pierre, HJM, Kinama JM, Olubayo FM, Wanderi SW, Muthomi JW, Nzuve FM.  2018.  Effect of Intercropping Maize and Promiscuous Soybean on Growth and Yield. . Journal of Experimental Agriculture International. 12(2):1-21.
Pierre, HJM, Kinama JM, Olubayo FM, Olubayo FM.  2018.  Effect of Intercropping Maize-Soybean on Grain Quality Traits in Kenya. Journal of Agricultural Science. 10(2):341-351.
Mdenye, BB, Kinama JM, Olubayo FM'mogi, Kivuva BM, Muthomi JW.  2018.  Effect of storage methods of cassava planting materials on establishment and early growth vigour. International Journal of Agronomy and Agricultural Research (IJAAR) . 12(1):1-10.
Muthomi, JW, Wafula GO, Nderitu JH, Chemining’wa GN.  2018.  Integration of Seed Dressing, Bio-pesticides and Intercropping to Reduce Pesticide Use in Snap Bean Production. International Journal of Agricultural Sciences and Natural Resources. 5(1):12-20.
Mumia, BI, Muthomi JW, Narla RD, Nyongesa MW, Olubayo FM.  2018.  Seed Potato Production Practices and Quality of Farm Saved Seed Potato in Kiambu and Nyandarua Counties in Kenya. World Journal of Agricultural Research. 6(1):20-30.
Buyela, SN, Muthomi JW, Mwang’ombe AW, Njau P, Olubayo F.  2018.  Effect of Seed Treatment on Wheat Seed Viability and Vigour.. American Journal of Agricultural Science. 5(1):1-9.
Ochichi, PB, Muthomi JW, WAGACHA JOHNMAINA.  2018.  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.. American Journal of Agricultural Science. 5(2):19-27.
Rono, S, Nzuve F, Muthomi J, Kimani J.  2018.  Combining Ability of Agronomic and Yield Traits in Rice Genotypes. Journal of Plant Physiology & Pathology. 6:2.
Birithia, R, Subramanian S, Muthomi JW, Narla RD.  2018.  Seasonal dynamics and alternate hosts of thrips transmitted Iris yellow spot virus in Kenya. African Crop Science Journal . 26(3):365–376.

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