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Evaluation of Methods of Replacing Established Uncapped Arabica Coffee With a New Improved Cultivar

  • J. M. Njoroge (a1), J. K. Kimemia (a1) and A. M. Karanja (a1)


An evaluation of methods for replacing established uncapped, multiple stem, arabica coffee cv. French Mission with cv. Ruiru 11 arabica hybrid in the field was carried out at Ruiru, Kenya. When Ruiru 11 was raised on a single stem using the hedgerow system, a mixed stand of Ruiru 11 and French Mission gave the largest mean yields of clean coffee. The next largest yields were obtained by the complete replacement of French Mission with Ruiru 11 grown at a spacing of 2 × 1.5 m and trained on a single stem system. However, in economic terms, replacing the established coffee partially or sequentially with Ruiru 11 trained on a single stem proved to be the best method.

Métodos de reemplazo de café



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Mwangi, C. N. (1983). Coffee Growers Hand Book. Ruiru, Kenya: Coffee Research Foundation.
Njoroge, J. M. (1991). Management of hybrid ‘Ruiru 11’ Arabica coffee-A review. Kenya Coffee 56:10271035.
Njoroge, J. M. (1992). Studies on fertilization, plant density, training, replacement method of established coffee and intercropping food crops with Coffea arabica L. cv. Ruiru 11. Ph.D Thesis, University of Nairobi, Kenya.
Van der Vossen, H. A. M. & Walyaro, D. J. (1981). The coffee breeding program in Kenya. A review of progress made since 1971 and plan for action for the coming years. Kenya Coffee 46:113130.


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