Browsing Journal Articles by Author "Gichimu, Bernard M."
Now showing items 21-40 of 51
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Evaluation of beverage quality and green bean physical characteristics of selected Arabica coffee genotypes in Kenya
Gichimu, Bernard M.; Kathurima, CW.; Kenji, GM.; Muhoho, SM.; Boulanger, R. (Academic Journals, 2009-10)Physical characteristics of green coffee bean have been reported to affect beverage quality to some extent. The objective of this study was to assess the beverage quality and green bean physical characteristics of forty ... -
Exploring the Changes of Resistant Genes Expression in Groundnuts (Arachis Hypogea) In Response to Aspergillus Flavus Exposure at Seedling Stage
Okayo, Robert O.; Andika, Darius O.; Dida, Mathews M.; K’Otuto, George O.; Gichimu, Bernard M. (2020-07)Aspergillus flavus infect groundnut seeds and produce secondary metabolites, aflatoxins. The aflatoxins are associated with various diseases in domestic animals and humans globally. Mitigating the aflatoxin contamination ... -
Field Screening of Selected Coffea arabica L. Genotypes Against Coffee Leaf Rust
Gichimu, Bernard M. (2012-06)Coffee Leaf Rust (CLR) is a fungal disease caused by Hemileia vastatrix Berk et Br. and is one of the major diseases of coffee. It causes premature leaf fall, yield loss and even death of the tree in severe cases. Coffee ... -
Genetic Characterization of Arabusta Coffee Hybrids and their Parental Genotypes using Molecular Markers
Gimase, J. M.; Thagana, W. M.; Kirubi, D. T.; Gichuru, E. K.; Gichimu, Bernard M. (2015)Twenty coffee genotypes were characterized comprising of eleven F1 interspecific Arabusta hybrids, three induced tetraploid Robusta parental genotypes, four Arabica parental genotypes, one diploid Robusta accession and ... -
Genetic diversity among commercial coffee varieties, advanced selections and museum collections in Kenya using molecular markers
Gichimu, Bernard M.; Kathurima, CW.; Kenji, GM.; Muhoho, SM.; Boulanger, R.; Gichuru, E. K. (Academic Journals, 2012-02)Molecular markers have effectively been applied to study genetic diversity and as markers of particular traits. This study assessed the diversity of twenty four (24) coffee genotypes using 10 Random Amplified Polymorphic ... -
Growth and nutrient uptake among three wetland plant species occurring in Lake Victoria basin in Kenya.
Gichimu, Bernard M.; Musyimi, D. M.; Netondo, G. W.; Owuor, B.O (2010)Nutrient enrichment is one of the most serious threats to wetland ecosystems. Information is lacking, particularly concerning the response of wetland plants species in Kenya in regard to nutrient enrichment of wetlands. ... -
In Vitro Control ofPhytophthora infestans and Alternaria solani Using Crude Extracts and Essential Oils from Selected Plants
Mugao, Lydia G.; Muturi, Phyllis W.; Gichimu, Bernard M.; Njoroge, Ezekiel K. (Hindawi, 2020-07)Tomato production is constrained by fungal diseases especially the early and late blight caused by Alternaria solani and Phytophthora infestans, respectively. Control of the two diseases is usually by use of synthetic ... -
Influence of Access to Land and Finances on Kenyan Youth Participation in Agriculture: A Review
Njeru, Lucy K.; Gichimu, Bernard M. (European Centre for Research Training and Development UK, 2014-09)The Kenya Government prioritized the development of the agricultural sector to achieving the first Millennium Development Goal (MDG) of sustainable food production. Kenya’s strategic plan, Vision 2030 positions ... -
Influence of access to land and finances on Kenyan youth participation in agriculture: a review
Gichimu, Bernard M.; Njeru, Lucy K. (European Centre for Research Training and Development UK, 2014-09)The Kenya Government prioritized the development of the agricultural sector to achieving the first Millennium Development Goal (MDG) of sustainable food production. Kenya’s strategic plan, Vision 2030 positions agriculture ... -
Influence of Kenyan Youth’s Perception towards Agriculture and Necessary Interventions; a Review
Njeru, Lucy K.; Gichimu, Bernard M. (Science Domain, 2015)Approximately 64% of unemployed persons in Kenya are youth, most of which live in rural areas and lacks formal education and vocational or professional skills. In spite of this, youth participation in agriculture has ... -
Integrated Soil Fertility and Water Management Practices for Enhanced Agricultural Productivity
Ndegwa, Jackline K.; Gichimu, Bernard M.; Mugwe, Jayne N.; Mucheru-Muna, Monicah; Njiru, Daniel M. (UoeM, 2023-06-23)Declining agricultural productivity has been a challenge worldwide and especially in Sub-Saharan Africa (SSA). Low agricultural productivity has been attributed to factors such as poor farm management practices, soil ... -
Leveraging on germplasm acquisition for Arabica coffee improvement in Kenya
Gichimu, Bernard M.; Omondi, Chrispine; Cheserek, Jane; Gimase, James (Scienceweb Publishing, 2016-01)The low genetic variability within Coffea arabica species is a major hindrance to its improvement. The emergence of new pathogen races, especially for the prevalent fungus Hemileia vastatrix ... -
Morphological and Molecular Characterization of Toxigenic Aspergillus flavus from Groundnut Kernels in Kenya
Okayo, Robert O.; Andika, Darius O.; Dida, Mathews M.; K’Otuto, George O.; Gichimu, Bernard M. (Hindawi, 2020-09)Pathogenesis of Aspergillus flavus on important agricultural products is a key concern on human health due to the synthesis and secretion of the hazardous secondary metabolite, aflatoxin. &is study identified and further ... -
Morphological Characterization of Five Newly Developed Lines of Arabica Coffee as Compared to Commercial Cultivars in Kenya
Gichimu, Bernard M.; Omondi, C. O. (ACADEMIC JOURNALS, 2010)Five new lines of Arabica coffee and two existing commercial cultivars planted in the field were characterized morphologically. The objective of this study was to determine the level of morphological variation within and ... -
Morphological characterization of Kenyan native wood ear mushroom [Auricularia auricula (L. ex Hook.) Underw.] and the effect of supplemented millet and sorghum grains in spawn production
Gichimu, Bernard M.; Palapala, V.A; Arama, P.F; Wagai, S.O. (2011)Utilization of mushrooms collected from the wild requires adequate description of useful phenetic features and domestication protocols. This study investigated morphological characters and spawn production procedures of ... -
Morphological Characterization of Some Wild and Cultivated Watermelon (Citrullus Sp.) Accessions in Kenya
Gichimu, Bernard M.; Owuor, B.O; Mwai, Gideon N.; Dida, Mathews M. (2009-03)Genetic diversity and relatedness were assessed among three most common commercial watermelon cultivars in Kenya; one newly introduced commercial cultivar from the U.S., one Kenyan landrace and one wild (Citrullus colocynthis) ... -
Occurrence of Ck-1 gene conferring resistance to Coffee Berry Disease in Coffea arabica cv. Ruiru 11 and its parental genotypes
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (Scienceweb Publishing, 2014-03)Resistance to Coffee Berry Disease (CBD) in Coffea arabica cv. Ruiru 11 is known to be controlled by among others, the T (Ck-1) gene from Robusta coffee (Coffea canephora Pierre). The cultivar reportedly presents significant ... -
Occurrence of Ck-1 gene conferring resistance to Coffee Berry Disease in Coffea arabica cv. Ruiru 11 and its parental genotypes
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (SCIENCEWEB PUBLISHING, 2014-03)Abstract. Resistance to Coffee Berry Disease (CBD) in Coffea arabica cv. Ruiru 11 is known to be controlled by among others, the T (Ck-1) gene from Robusta coffee (Coffea canephora Pierre). The cultivar reportedly presents ... -
Performance assessment of Crosses between Gadam and Hardcore Tannin sorghum in hybrid lines production
Shinda, Cecilia A.; Gitari, Josiah N.; Nthakanio, Paul N.; Runo, Steven; Gichimu, Bernard M.; Maina, Samuel (2022-06)Gadam cultivar of sorghum has been characterized by low yields compared to the international yield levels of sorghum. In this research, Gadam was crossed with Serena, Seredo, and Kari/Mtama-1 in an attempt to increase ... -
Performance of Three Isolates of Metarhizium anisopliae and Their Virulence against Zeugodacus cucurbitae under Different Temperature Regimes, with Global Extrapolation of Their Efficiency
Onsongo, Susan K.; Gichimu, Bernard M.; Akutse, Komivi S.; Dubois, Thomas; Mohamed, Samira A. (MDPI, 2019-08)The performance of entomopathogenic fungi in pest control is usually a ected by both biotic and abiotic factors. This study aimed to determine the e ects of various temperatures (15, 20, 25 and 30 C) on conidial ...