Abstract:
The data from a uniformity trial were analysed to find the optimum size
and shape of plots and blocks. Considerable variability was observed in the yields
of trees eventhough they were raised from the same parental stock. The relative
percentage information was found to be maximum in single tree plots both in the
case when the plots are arranged in blocks and when they are not arranged.
Thus single tree plots could be recom.nended as optimum for conducting field
experiments on cashew. In order to avoid enhanced chance of loss in information
with single tree plots as an alternative suggestion two tree plots could
also be used for conducting field experiments on cashew. It was observed that
two plot blocks were the most efficient for conducting field experiments on
cashew.
The Fair Field Smith's equation gave a good fit to the data on the
2 cases when the plots are arranged in blocks and not arranged. The relatively
high value of the parameter 'b' indicated that genotypic variation was more
predominant than positional variation.