A catalogue of nearest neighbor - balanced designs in circular blocks of size five

In many experiments,the performance of a treatment is affected by the treatments applied to its adjacent plots. neighbor-balanced designs ensure that treatment comparisons will be as little affected by neighbor effects as possible. nearest neighbor designs have their own importance,therefore,these designs are presented in circular binary blocks of size 5 for all v (number of treatments) from 8 to 50. these designs are also presented for 51 < v < 100 when either v or (v -1) are divisible by k = 5. © 2010 pakistan journal of statistics.