Abstract:
A uniformity trial on colocasia was conducted at the College of Agriculture,
Vellayani, Kerala Agricultural University, during kharif 1984. Biometrical observations
on 16 characters as indicated in Tables 1,2 and 3 were taken from all plants.
The nature of soil heterogeneity was studied from the productivity contour map. The
map revealed that the field could be considered heterogeneous in nature. Based on
the mean square analysis, we could not predict any general trend of fertilty variation
existing in the field. The low serial correlation coefficients established that fertile
areas occur in patches. The'b' value was found higher for yield than for other
characters. While comparing all the four methods we could assume that the method
of serial correlation, is more reliable than all other methods.
