In the kharif of 2022–2023, genetic divergence analysis of the 20 pigeonpea genotypes was obtained for eight characters in a randomised complete block design (RCBD) with two replications at three locations: Shaheed Gundadhur College of Agriculture and Research station, Jagdalpur; Sant Kabir College of Agriculture and Research Station, Kabirdham; and Research Cum Instructiona Farm College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur. The D2 statistic of Mahalanobis (1936) was used to analyse divergence, while Rao (1952) described Tocher's approach for cluster formation. Five clusters were formed from twenty genotypes. Cluster I (9) had the most genotypes, followed by Cluster II (8), Cluster III (1), Cluster IV (1), and Cluster V (1). Cluster II had the largest average intra-cluster distance (0.73), followed by Cluster I (0.64). Cluster I and Cluster III had the greatest inter-cluster distance (2.00), followed by Cluster III and V (1.78). The intra-cluster distance was greatest in Cluster II. The genotypes RP-7, RP-7373, RPS2014-19, RPS2014-03, RPS2014-32, RPS2014-34, and ICP 7005 may therefore be used as parents in upcoming breeding initiatives.

Genetic divergence, genotype, pigeonpea

Pigeonpea diversity research shows a great deal of genetic variation between accessions, which is important for breeding and agricultural improvement initiatives 20 genotypes were split into 5 clusters using cluster analysis using the mean; cluster I had the most genotypes, followed by cluster II, while cluster III, IV, and V had the fewest. Clusters III and I had the greatest inter-cluster distance, suggesting that there was enough genetic variation across the genotypes, while clusters II and V had the most intra-cluster distance, suggesting that genetic diversity was present.

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