Division of Vegetable Crops, Indian Agricultural Research Institute, New Delhi 110 012
Genetic divergence using Mahalanobis's D2 statistic was studied in a population of 31 cucumber genotypes. The genotypes differed significantly for the fifteen characters studied and were grouped into 16 clusters based on similarities of D2 values. The pattern of distribution of genotypes from different regions into various clusters was at random, demonstrating that the geographical isolation may not be the only factor for causing biological or genetic diversity.
