Browsing Journal Articles by Author "Gichuru, E. K."
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Biochemical Composition Within Coffea arabica cv. Ruiru 11 and Its Relationship With Cup Quality
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (Canadian Center of Science and Education, 2014-01-14)Biochemical composition appears to be influenced by both genetic factors and plant growth conditions. The main objective of this study was to evaluate the biochemical composition of selected Ruiru 11 sibs and its relationship ... -
Combining CBD Resistance with High Yields and Good Cup Quality: Success case in Ruiru 11 Cultivar
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, G. E.; Nyende, A. B. (2015)Coffea arabica cv. Ruiru 11 is a composite of sixty six (66) F1 hybrid sibs each derived from a cross between a specific female and male population. The pedigree of Ruiru 11 consist of CBD resistance donors, Rume Sudan ... -
Early Agronomic Performance of Some New and Existing Arabica Coffee Varieties in Kenya
Gichimu, Bernard M.; Omindi, C. O.; Gichuru, E. K. (2015)The primary goal of plant breeding is to improve yield, quality and disease resistance. However, majority of reported work on coffee breeding primarily concerns agronomical improvement that directly impinges on either ... -
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 ... -
Methods for early evaluation for resistance to bacterial blight of coffee
Gichimu, Benson M.; Cheserek, J. J; Gitonga, P. N.; Gichuru, E. K.; Ithiru, J. M. (Academic Journals, 2013)Bacterial Blight of Coffee (BBC) caused by Pseudomonas syringae pv garcae has become of major concern in Kenya due to its increasing incidence and severity. For decades, the disease was confined within and to the west of ... -
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 ... -
Quantitative trait loci (QTL) mapping of resistance to coffee berry disease (Colletotrichum kahawae Waller & Bridge) in Coffea arabica L. variety Rume Sudan
Gimase, James M.; Thagana, Wilson M.; Omondi, Chrispine; Cheserek, Jane Jerono; Gichimu, Bernard M.; Gichuru, E. K. (Academic Journals, 2020-06)Coffee Berry Disease (CBD) is a major constraint that limits Coffea arabica production, whose resistance is governed by three genes, T, R that are dominant and recessive k in varieties Hibrido de Timor (HDT), Rume Sudan ... -
Selection of Ruiru 11 hybrid sibs on raw coffee quality
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (2012-06)The economic value of Arabica coffee (Coffea arabica L.) is determined mainly by the yield potential, the size and shape of raw beans and beverage quality. Bean quality reportedly differ depending on the variety, environmental ... -
Selection within Coffea arabica cv. Ruiru 11 for high cup quality
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (Academic Journals, 2012-09-26)In recent years, consumer awareness about the quality of different coffees has increased and therefore production and supply of coffee with excellent quality attach more significance. As a result, many coffee producing ... -
Variation and Association of Cup Quality Attributes and Resistance to Coffee Berry Disease in Coffea Arabica L. Composite Cultivar, Ruiru 11
Gichimu, Bernard M.; Gichuru, E. K.; Mamati, George E.; Nyende, A.B. (2013-12)Majority of reported work on coffee breeding primarily concerns agronomic improvement that directly impinges on coffee quality. However, it is crucial that coffee breeding programmes for disease resistance also include ... -
Yield Selection within Coffea arabica cv. Ruiru 11
Gichimu, Bernard M.; Nyende, A.B.; Gichuru, E. K.; Mamati, George E. (SCIENCEDOMAIN international, 2012-08-17)Aims: This study was aimed at identifying high yielding Ruiru 11 sibs in varying growing conditions. The study also intended to measure the extent to which cherry yields of Ruiru 11 are affected by the environment. Study ...