Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T14:48:48.611Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access Rights & Permissions [Opens in a new window]

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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