The Journal of Agricultural Science

Research Article

Block designs for variety trials

H. D. Pattersona1, E. R. Williamsa2 and E. A. Huntera1

a1 A.R.C. Unit of Statistics, University of Edinburgh

a2 C.S.I.R.O. Division of Mathematics and Statistics, Canberra

Summary

In this paper we present a series of resolvable incomplete block designs suitable for variety trials with any number of varieties v in the range 20 ≤v ≤ 100. These designs usefully supplement existing square and rectangular lattices. They are not necessarily optimal in the sense of having smallest possible variances but their efficiencies are known to be high.

(Received September 19 1977)

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