Experimental Analysis of Genetic Divergence in Garden Pea (Pisum sativum L. var. hortense)

Abstract

Research work on genetic divergence, analysis was estimated in 25 genotypes of Garden Pea (Pisum sativum L. var. hortense) during rabi season of the year 2023-2024 at Horticulture Research Farm No.1, Babasaheb Bhimrao Ambedkar University, Lucknow. The main objective of this study was to characterize morphological differences and yield related traits among 25 pea accessions.  The experiment was conducted in Randomized Block Design with three replications during Rabi season in 2023-24. The estimation of genetic diversity among tested genotypes was highly significant, which got grouped into 5 clusters with cluster V comprising maximum genotypes. Maximum intra-cluster distance (3.401) was observed in cluster II followed by cluster I (3.249), cluster V (3.170), cluster III (2.988) and cluster IV (1.538). Similarly maximum inter cluster distance was recorded between the cluster IV and I (7.897) followed by cluster V and IV (5.844) followed by cluster IV and III (5.686), cluster IV and II (5.656) respectively. Although maximum cluster means for seed yield traits was recorded for cluster IV and II respectively, suggesting a wider range of diversity for most of the economic traits that would enable breeder to identify the genotypes with suitable traits to be used in direct selection and also in improvement programmed for broadening the genetic base. 25 accession showed distinguished variation in the dendrogram for all the studied parameters.