Abstract:
A uniformity trial on colocasia was conducted at the experimental field of
the College of Agriculture, Vellayani, Kerala during April-September, 1984. At the
time of harvest the observations regarding the yield characteristics were recorded.
From the study of the size and shape of the plot it was found that an increase in
plot size in either direction decreased the coefficient of variation. For a given size
of the plot, the best shape was that having more number of rows than columns. The
heterogeneity coefficient b in the Smith's equation for yield was 0.6057. The
optimum plot size found out by maximum curvature method and by modified maximum
curvature method was approximately 3 m2. When the cost of experimentation
was considered, a plot size of 1.636 m2 was found optimum for conducting experiments
with colocasia.
