Open Access Research Paper Views (841) Determination of optimum plot size, shape and no. of replications in wheat yield trial Syed Asghar Ali Shah, Sajad Ali, Jan Ayaz, Ihsan Ullah Int. J. Biosci. 10(6), 202-207, June 2017. DOI: http://dx.doi.org/10.12692/ijb/10.6.202-207 Keywords: Coefficient of variation, Mean squares, Ratio of length to width, Size and shape, Standard error Details