Latin Square Type Row-Column Designs

A class of Row-Column Designs (RC-designs) in t + t_l-1 (t = t₁t₂) treatments has been constructed by supplementing a latin square type RC-design in t-1 treatments arranged in t x t array with principal diagonal (left to right) blank and having each treatment once in each row and once in each column. The blank diagonal positions are supplemented by t₁ new treatments each replicated t₂ times. These designs are simple partially efficiency balanced Row-Column designs (SPEB-RC-designs) having two sets of treatments with different number of replications. These designs are very useful in agricultural experiments particularly in plant development programme where limited seed material is available for new strains or varieties (t₁) as compared to standard or check varieties (t-1), already in existence.