Author(s):

Madhusudan N, Radhakrishna KV, Senguttuvel P, Sundaram RM, Subrahmanyam D, Anantha MS, Gireesh C, Gobinath R and Hari Prasad AS

Abstract: Studies was carried out to assess the genetic divergence among 55 parental lines of rice using Mahalanobis D² under graded soil phosphorus condition viz., 20, 40 and 60 kg P₂O₅ ha^-1 at ICAR-Indian Institute of Rice Research, Hyderabad. 55 parental lines were grouped into eight clusters. Cluster I had highest number of genotypes (48) and remaining clusters showing one parental line in each cluster. Highest divergence occurred between cluster II and VII (14.49) and minimum inter cluster distance between the clusters V and II (4.63). The highest intra cluster distance was recorded for cluster no. I (4.47) and remaining clusters shows 0.00 showed minimum intra cluster distance

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