ROW-COLUMN FACTORIAL-DESIGNS FOR USE IN AGRICULTURAL FIELD TRIALS

Factorial row-column designs are often required for field trials in ag ricultural, horticultural and forestry research, but no general method ology is available to produce efficient designs. This paper describes a new objective function defined in such away that varying degrees of emphasis can be given to main effects in the factorial situation. A co mputer program to generate such designs has been adapted from the simu lated annealing algorithm of John and Whitaker. The program can also a ccommodate the Latinized row-column designs of Williams.