Vol. 9, Special Issue 8, Part W (2025)

This study assessed thirty-two sunflower (Helianthus annuus L.) genotypes, including two control varieties, to analyse genetic diversity. The research was conducted during the Kharif season (20242025) at the College of Agriculture’s Research Farm in Pune. Observations were made on ten quantitative traits, and the Tocher clustering method categorized the genotypes into ten distinct groups. Among these, Cluster I and III were the largest, containing 10 and 8 genotypes, respectively, followed by Cluster II (5 genotypes) and Cluster IV (3 genotypes). The remaining clusters (V to X) each consisted of a single genotype, resulting in zero intra-cluster distance. By evaluating cluster mean values, the most genetically diverse genotypes can be identified for future hybridization programs.