Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-29T18:46:59.276Z Has data issue: false hasContentIssue false
  • English
  • Français

The seed productivity of perennial rye-grass varieties

Published online by Cambridge University Press:  27 March 2009

H. M. Roberts
H. M. Roberts
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
Get access Rights & Permissions [Opens in a new window]

Extract

1. Seed plots of five perennial rye-grass varieties, S23, S24, S321, Melle Pasture and an experimental type, Ba6280, were established in 18 in. rows.

2. Each variety was subjected to hard grazing by sheep in September, at ear initiation in spring, and 3 weeks following ear initiation; one series of plots was left ungrazed. Three levels of spring nitrogen, 2, 4 and 6 cwt./acre ‘Nitro-chalk’ (21%N), were applied to subplots.

3. S321 produced significantly more seed heads and Ba6280 gave significantly fewer heads than S23, S24 and Melle. September grazing increased head production by 15%, whilst the two spring grazings gave fewer heads than the ungrazed plots. An increase in the rate of nitrogen application in spring favoured head production.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 66 , Issue 2 , April 1966 , pp. 225 - 232
Copyright
Copyright © Cambridge University Press 1966

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

REFERENCES

Anslow, R. C. (1963). J. Br. Grassl. Soc. 18 90.Google Scholar
Evans, G. (1937). Welsh J. Agric. 13, 195.Google Scholar
Evans, G. (1939). Agriculture, Lond., 46, 355.Google Scholar
Evers, A. & Sonneveld, A. (1956). Gestenc. Meded. cent. Inst. landbouwk. Onderz. p. 51.Google Scholar
Green, J. O. & Evans, T. A. (1957). J. Br. Grassl. Soc. 12, 4.Google Scholar
Hayward, P. R. (1959). J. Nat. Inst. Agric. Bot. 8, 518.Google Scholar
Lincolnshire Seed Growers Association (1962). Annual Report, p. 8.Google Scholar
Reytens, H. (1949). Rev. Agric., Brux., 2, 885.Google Scholar
Roberts, H. M. (1958). J. Br. Grassl. Soc. 13, 255.Google Scholar
Roberts, H. M. (1959). J. Br. Grassl. Soc. 14, 58.CrossRefGoogle Scholar
Roberts, H. M. (1965). 20, 283.CrossRefGoogle Scholar
Ryle, G. J. A. (1964). Ann. Appl. Biol. 53, 311.Google Scholar
Sonneveld, A. & Evers, A. (1954). Proc. Europ. Grassl. Congr. O.E.E.C. 1954 p. 141.Google Scholar
Stoddart, J. L. (1964a). J. Agric. Sci. 62, 67.CrossRefGoogle Scholar
Stoddart, J. L. (1964b). J. Agric. Sci. 62, 321.Google Scholar
Vyncke, A. (1954). Proc. Europ. Grassl. Congr. O.E.E.C 1954, p. 139.Google Scholar