Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-30T00:01:29.119Z Has data issue: false hasContentIssue false
  • English
  • Français

Genetic relationships between winter survival in Italian ryegrass (Lolium multiflorum Lam) and yield in the previous season

Published online by Cambridge University Press:  27 March 2009

F. England
F. England
Affiliation:
Scottish Plant Breeding Station, Pentlandfield, Roslin, Midlothian EH25 9RF, Scotland
Get access Rights & Permissions [Opens in a new window]

Summary

Evidence is presented that, in Italian ryegrass, the ability to survive in the sward into a second year after sowing may be assessed on spaced plants or on closely planted rows. There is no indication that selection for the ability to survive into the second year need cause loss of yield in the first year after sowing. In an earlier paper based on the same experiment (England, 1975) incorrect formulae were used for calculating family heritabilities and genetic correlations. In an appendix the correct formulae are derived and the consequent changes in the conclusions of the previous paper are described.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 86 , Issue 2 , April 1976 , pp. 287 - 292
Copyright
Copyright © Cambridge University Press 1976

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

Becker, W. A. (1968). Manual of Procedures in Quantitative Genetics. Pullman, Washington State University.Google Scholar
Breese, B. L. & Foster, C. A. (1971). Breeding for increased winter hardiness in perennial ryegrass. Report of The Welsh Plant Breeding Station for 1970, 70–6.Google Scholar
Copeman, G. (1969). Winterkill in the North of Scotland. West of Scotland Agricultural College Study Conference on Winterkill. Publication No. 260, 18–23.Google Scholar
England, F. (1975). Heritabilities and genetic correlations for yield in Italian ryegrass (Lolium multiflorum Lam.) grown at different densities. Journal of Agricultural Science, Cambridge 84, 153–8.Google Scholar
Falconer, D. S. (1960). An Introduction to Quantitative Genetics. Edinburgh: Oliver and Boyd.Google Scholar
Lawrence, T., Cooper, J. P. & Breese, E. L. (1973). Cold tolerance and winter hardiness in Lolium perenne. II. Influence of light and temperature during growth and hardening. Journal of Agricultural Science, Cambridge 80, 341–8.Google Scholar