Some more neighbor balanced designs in circular blocks of size five

Neighbor balanced designs are more useful to remove the neighbor effects in experiments where the performance of a treatment is affected by the treatments applied to its adjacent plots. these designs ensure that treatments comparisons will be least affected by neighbor effects. akhtar et al. (2010) presented a catalogue of nearest neighbor balanced designs in circular blocks of size 5 for ν < 100 but designs for v from 51 to 100 with ν(ν-1) relatively prime to 5 are not listed there. in this paper,these designs are presented to complete the catalogue for 5 < ν < 100. some infinite series of neighbor balanced designs are also developed for block size 5. © 2014 pakistan journal of statistics.