![]() ![]() ![]() ![]() These genotypes are grouped into clusters based on the similar phenotypic characteristics that is number of eyes/tuber, tuber shape and skin type are associated in each of the distinct cluster. In the present data, potato genotypes such as CIP01, CIP25, CIP2, CIP4, CIP10, CIP24, CIP32, CIP 09, CIP20, CIP27, CIP29, CIP33, ASTRIX, DESIRRE, ZINA Red, HZD2 1499, CIP 07, CIP16 and CIP30 made up the first cluster, CIP12, CIP14, CIP28, CIP31and CIP17 made up the second cluster, CIP03, CIP06, CIP08, CIP11, CIP15, CIP05, CIP13, CIP18, CIP19, CIP34 made up the third cluster and CIP22 made up the fourth cluster. The resulting dendrogram displayed the information in the form of a tree diagram. This shows that four clusters are logically sufficient for final partition. The amalgamation steps in the cluster analysis showed that the similarity level decreased by increases of about 6 or less until it decreased by 13 at the step from four clusters to three. Data on thirty five potato genotypes were evaluated in the field experiment for 3 qualitative traits namely number of eyes/tuber, tuber shape and tuber skin type. Cluster analysis is a multivariate technique used to group the data into clusters in a way that the observations within in a cluster are similar whereas the clusters are distinct from one another. In the present study cluster analysis by average linkage method was used for classification of potato genotypes on the basis of phenotypic traits. ![]()
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