Optimum plot size for field trials with banana

Abstract

The data from a uniformity triai on banana was analysed for finding the optimum plot size for conducting field experiments. The results showed that single plant plots were most efficient. The co-efficient of variation of yield decreased steadily with increasing plot size. The empirical law suggested by Fairfield Smith gave a satisfactory fit to the data. The number of replications required for providing estimates with 5% standard error decreased with increased plot size, but the total experimental material required was minimum when single plant plots were used. However, as banana plants are liable for disease incidence, three plant plots are suggested for experiments.