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A Successful Plant Improvement Programme on Tea (Camellia Sinensis)

Published online by Cambridge University Press:  03 October 2008

Rex Ellis
Affiliation:
Tea Research Foundation (Central Africa), PO Box 51, Mulanje, Malawi
H. E. Nyirenda
Affiliation:
Tea Research Foundation (Central Africa), PO Box 51, Mulanje, Malawi

Summary

The tea industry in Malawi is the oldest in Africa but in the past had always produced poor quality tea. A plant improvement programme was therefore started in 1956 at the Tea Research Stations in Mulanje. The improvement in made tea quality was assisted by an investigation into the biochemistry of tea fermentation. Early success was obtained with polyclonal seed varieties and the development of clones from field bushes. These were used in cross breeding to produce new progeny clones which are showing a steady improvement in quality and yield. The need for improved yield was recognised as the programme progressed and appropriate selection procedures adopted. Techniques for improved vegetative propagation for field planting, grafting ofseed bearer trees and composite plants were developed. Liaison with the tea industry has been good and all new plantings in southern Africa since about 1975 have been with improved material. The programme is continuing and future prospects are good.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1995

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References

Cannell, M. G. R., Njuguna, C. K., Ford, E. D. & Smith, R. (1977). Variation in yield among competing individuals within mixed genotype stands of tea: A selection problem. journal of Applied Ecology 14:969986.CrossRefGoogle Scholar
Cloughley, J. B., Ellis, R. T., Pendlington, S. & Humphrey, P. (1982). Volatile constituents of some Central African black tea clones. Journal of Agricultural and Food Chemistry 30:842.CrossRefGoogle Scholar
Green, M.J. (1971). An evaluation of some criteria used in selecting large yielding tea clones. journal of Agricultural Science, Cambridge 76:143156.CrossRefGoogle Scholar
Hilton, P. J. & Ellis, R. T. (1972). Estimation of the market value of Central African tea by theaflavin analysis. journal of the Science of Food and Agriculture 23:227232.CrossRefGoogle Scholar
Hilton, P. J. & Palmer-Jones, R. W. (1975). Chemical assessment of quality in tea and its relation to the market over an extended period. journal of the Science of Food and Agriculture 26:16811687.CrossRefGoogle Scholar
Hutchinson, J. B. (1958). Genetics and The Improvement of Tropical Crops. Cambridge: University Press.CrossRefGoogle Scholar
Kayange, C. W., Scarborough, I. P. & Nyirenda, H. E. (1981). Rootstock influence and yield and quality of tea (Camellia sinensis L.) Journal of Horticultural Science 56:117120.CrossRefGoogle Scholar
Nyirenda, H. E. (1989). Effectiveness of assessment of vigour and productivity in young vs old bushes and mature clones of tea (Camellia sinensis). Annals of Applied Biology 115:327332.CrossRefGoogle Scholar
Nyirenda, H. E. (1986/7). The effects of different rootstock/scion combinations on the growth and development of the composite plant. In Annual Report 19867/87, 93113. Mulanje, Malawi: TRFCA.Google Scholar
Nyirenda, H. E. & Ridpath, V. E. T. (1984). Criteria for clonal selection in tea (Camellia sinensis). I. The relation between mother bushes and their clonal derivatives for bush area, shoot number and yield. Experimental Agriculture 20:339343.CrossRefGoogle Scholar
TRFCA (1967). Annual Report 1966/67. Mulanje, Malawi: TRFLA.Google Scholar
TRFCA (1970). Annual Report 1969/70. Mulanje, Malawi: TRFLA.Google Scholar
TRFCA (1978). Annual Report 1977/78. Mulanje, Malawi: TRFLA.Google Scholar
TRS (1959). Annual Report 1958/1959, p. 19. Malawi: Tea Research Station.Google Scholar