Genetic Diversity Analysis in Tomato (Solanum lycopersicum) Genotypes

Abstract

Genetic diversity among 18 tomato genotypes was worked out using Mahalanobis D2 statistic. On the basis of genetic distance, the eighteen genotypes were grouped into 6 clusters. Out of the 18 genotypes cluster I and cluster III has the highest genotypes (4 each) followed by cluster II and cluster IV (3 each) and cluster V and cluster VI had 2 genotypes each. Inter cluster distance was observed to be highest between cluster V and cluster VI indicating that these two cluster were genetically diverse. Hence, the genotypes of cluster V and VI would be utilized in hybridization program to achieve greater variability in the segregating generations. Among the different characters studied yield per plot, TSS and vitamin C contributed maximum towards divergence.