Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-22T18:20:09.896Z Has data issue: false hasContentIssue false
  • English
  • Français

Breeding for increased nodule tissue in white clover (Trifolium repens L.)

Published online by Cambridge University Press:  27 March 2009

D. Gareth Jones  and
A. C. Burrows
D. Gareth Jones
Affiliation:
Department of Agricultural Botany, University College of Wales, Aberystwyth
A. C. Burrows
Affiliation:
Welsh Plant Breeding Station, Plas Gogerddan, Nr. Aberystwyth
Get access Rights & Permissions [Opens in a new window]

Summary

The results of progeny tests of families of F1 and F2 selections derived from S 100 white clover are reported. The selection criterion was a high total nodule mass per plant coupled with an effective symbiosis with a known effective strain of Rhizobium trifolii. Selection for increased nodule volume produced a correlated increase in nodule number. F1 and F2 had significantly higher means than S 100 but F2 was not significantly higher than F1.

Scores for nodule mass showed a significant increase in F1 and a smaller but insignificant increase in F2. An estimate of the efficiency of nitrogen fixation on a unit-nodule basis indicated that as nodule size increased efficiency decreased.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 71 , Issue 1 , August 1968 , pp. 73 - 79
Copyright
Copyright © Cambridge University Press 1968

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

Bowen, G. D. & Kennedy, M. M. (1961). Heritable variation in nodulation of Centrosema pubescens Benth. Qd J. agric. Sci. 18, 161–70.Google Scholar
Chen, H. K. & Thornton, H. G. (1940). The structure of ineffective nodules and its influence on nitrogen fixation. Proc. R. Soc. B, 208.Google Scholar
Gelin, O. & Blixt, S. (1964). Root nodulation in peas. Agric. Hortique Genetica 22, 149–59.Google Scholar
Jensen, H. L. (1942). Nitrogen fixation in leguminous plants. II. Is symbiotic nitrogen fixation influenced by Azotobacter? Proc. Linn. Soc. N.S.W. 67, 205–12.Google Scholar
Jones, D. Gareth (1962). Variation in nodulation characteristics in S. 100 Nomark white clover. J. Sci. Fd Agric. 13, 598–603.CrossRefGoogle Scholar
Nutman, P. S. (1954). Symbiotic effectiveness in red clover. II. A major gene for ineffectiveness in the host. Heredity, Lond. 8, 47–60.CrossRefGoogle Scholar
Nutman, P. S. (1961). Variation in effectiveness in subterranean clover (T. subterranean L.). Aust. J. agric. Res. 12, 212–26.CrossRefGoogle Scholar
Nutman, P. S. (1967). Varietal differences in nodulation of subterranean clover. Aust. J. agric. Res. 18, 381–425.CrossRefGoogle Scholar