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Production of F1 hybrids using ethrel-induced male sterility in Indian mustard (Brassica juncea (L.) Coss.)

Published online by Cambridge University Press:  27 March 2009

S. S. Banga  and
K. S. Labana
S. S. Banga
Affiliation:
Department of Plant Breeding, Punjab Agricultural University, Ludhiana, India
K. S. Labana
Affiliation:
Department of Plant Breeding, Punjab Agricultural University, Ludhiana, India
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Summary

The effect of field layout and the orientation of seed-production blocks on outcrossing rates was investigated in Indian mustard. The study incorporated three male:female combinations, i.e. 1:2, 1:3 and 2:4 laid in east–west, north–south and circular directions. The experimental material consisted of four test cultivars (RLM 198, RLM 514, Varuna and TM 4) in a split-plot design. Male sterility was achieved by spraying 0·25% (v/v) ethrel twice before the emergence of the first flowering shoots. The proportion of hybrid seed set was maximal in the 2:4 combination in a circular design. Outcrossing varied from 19 to 79%. Heterosis was evident in yield trials, but F1 hybrids showed carry-over effects due to ethrel treatment. It is argued that ethrelinduced male sterility has only a limited role in screening parental combinations for their yield assessment.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 2 , October 1983 , pp. 453 - 455
Copyright
Copyright © Cambridge University Press 1983

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References

Banga, S. S. (1982). Utilization of heterosis by developing F l hybrids in Indian mustard (Brasaica juncea (L.) Czern and Coss). Ph.D. dissertation, Punjab Agricultural University, India.Google Scholar
Borghi, B.Bonali, F. & Boggini, C. (1973). Induction of male sterility in wheat with ethephon for hybrid seed production. Proceedings of 4th International Wheat Genetics Symposium. Missouri Agricultural Station, Columbia, U.S.A., pp. 337–343.Google Scholar
Frankel, R. & Galun, E. (1977). Pollination Mechanisms, Reproduction and Plant Breeding. 280 pp. Berlin, Heidelberg, New York: Springer-Verlag.CrossRefGoogle Scholar
Hughes, W. G. (1975). Use of ethephon in wheat breeding. Annals of Applied Biology 81, 112–114.CrossRefGoogle Scholar
Hughes, W. G. & Bodden, J. J. (1978). Production and yield assessment of F l hybrid wheat using ethephon induced male sterility. Zeitschrift für Pflanzenzüchtung 81, 17–23.Google Scholar
Labana, K. S. & Banga, S. S. (1982). Floral biology in Indian mustard (Brassica juncea (L.) Coss.). Genetica Agraria (in the Press).Google Scholar
Stoskopf, N. C. & Law, J. (1972). Some observations on ethrel as a tool for developing hybrid cereals. Canadian Journal of Plant Sciences 52, 680–683.CrossRefGoogle Scholar