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Variability of yields in cereal variety × fungicide trials

  • Hilary Mycroft (a1)

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.

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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.
Patterson, H. D. & Thompson, R. (1971). Recovery of inter-block information when block sizes are unequal. Biometrika 58, 545554.
Patterson, H. D. & Thompson, R. (1975). Maximum likelihood estimation of components of variance. Proceedings of the 8th International Biometric Conference, pp. 197207.
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.
Silvey, V. (1982). Analysis of crop variety adaptation from performance trials in England and Wales. Proceedings of the llth International Biometric Conference, pp. 157163.

Variability of yields in cereal variety × fungicide trials

  • Hilary Mycroft (a1)

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