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Heterosis and combining ability in a diallel cross of chilli (Capsicum annum L.)

Published online by Cambridge University Press:  27 March 2009

A. C. Soh
Affiliation:
Faculty of Agriculture, University of Malaya, Kuala Lumpur, Malaysia
T. C. Yap
Affiliation:
Faculty of Agriculture, University of Malaya, Kuala Lumpur, Malaysia
K. M. Graham
Affiliation:
Faculty of Agriculture, University of Malaya, Kuala Lumpur, Malaysia

Summary

In a 7×7 diallel-cross experiment utilizing parents with varying resistance to mosaic virus disease and of different horticultural types significant heterosis over the better parent was found in number of days between sowing and flowering and over the mean of the two parents in other characters. The combining ability analysis revealed that genetic control of most character variation was due to additive effects.

It is suggested that pedigree and/or backcross methods are most appropriate for improving this chilli population.

Type
Short Note
Copyright
Copyright © Cambridge University Press 1976

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References

Falconer, D. S. (1960). Introduction to Quantitative Genetics. Edinburgh: Oliver and Boyd.Google Scholar
Gamble, E. E. (1962). Gene effects in corn (Zea mays L.). I. Separation and relative importance of gene effects for yield. Canadian Journal of Plant Science 42, 339–48.Google Scholar
Griffing, B. (1956). Concept of general and specific combining ability in relation to diallel crossing system. Australian Journal of Biological Science 9, 463–93.Google Scholar
Hayman, B. I. (1957). Interaction, heterosis and diallel crosses. Genetics, 42, 336–56.CrossRefGoogle ScholarPubMed
Marfutina, V. (1972). Sweet pepper hybrids displaying heterosis. Kartofel' Ovoshi 10, 30.Google Scholar
Matzenger, D. F. & Kempthorne, O. (1956). The modified diallel table with partial inbreeding and interactions with environment. Genetics 41, 822–33.Google Scholar
Popova, D. (1972). A study of the influence of some factors on heterosis in sweet pepper (Capsicum annuum). Izv. naucy izsled., Inst. Raster (News Sci-res. Inst. Pl.-Industr.) Sofija 14, 239–47.Google Scholar
Silvetti, E. & Giovanelli, G. (1970). Analysis of a diallel cross among some sweet pepper varieties and their F, progeny. Genet agr Pavia 24, 269–70.Google Scholar
Soh, A. C. (1975). Genetic studies on mosaic virus resistance and agronomic characters in chilli (Capsicum annuum L.). M.Agric.Sc. thesis (unpublished), Faculty of Agriculture, University of Malaya, Kuala Lumpur, Malaysia.Google Scholar