Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-26T05:11:31.564Z Has data issue: false hasContentIssue false

Variability of yields in cereal variety × fungicide trials

Published online by Cambridge University Press:  27 March 2009

Hilary Mycroft
Affiliation:
A.R.C. Unit of Statistics, University of Edinburgh, Scotland

Summary

Yield variability of spring barley and winter wheat varieties is investigated in National Institute of Agricultural Botany trials sown to assess the influence on varieties of fungicide treatment. The extent of the variation in relative variety performance due to years and centres is estimated for untreated and treated yields and for yield response to fungicide. The consequences for the design of future trials systems are considered.

Type
Research Article
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

Patterson, H. D., Silvey, V., Talbot, M. & Weatherup, S. T. C. (1977). Variability of yields of cereal varieties in U.K. trials. Journal of Agricultural Science, Cambridge 89, 239245.CrossRefGoogle Scholar
Patterson, H. D. & Thompson, R. (1971). Recovery of inter-block information when block sizes are unequal. Biometrika 58, 545554.CrossRefGoogle Scholar
Patterson, H. D. & Thompson, R. (1975). Maximum likelihood estimation of components of variance. Proceedings of the 8th International Biometric Conference, pp. 197207.Google Scholar
Silvey, V. (1978). Methods of analysing NIAB variety trial data over many sites and several seasons. Journal of the National Institute of Agricultural Botany 14, 385400.Google Scholar
Silvey, V. (1982). Analysis of crop variety adaptation from performance trials in England and Wales. Proceedings of the llth International Biometric Conference, pp. 157163.Google Scholar