Genetic Divergence and Association Analysis in <I>Pongamia pinnata</I> (L.) Pierre

R. S. Beniwal; Sandeep Kumar; R. Chauhan; Sushil Kumari

doi:10.36808/if/2017/v143i2/113583

Genetic Divergence and Association Analysis in Pongamia pinnata (L.) Pierre

Authors

R. S. Beniwal Department of Forestry, CCS Haryana Agricultural University, Hisar-125004
Sandeep Kumar Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar
R. Chauhan Department of Forestry, CCS Haryana Agricultural University, Hisar-125004
Sushil Kumari Department of Forestry, CCS Haryana Agricultural University, Hisar-125004

DOI:

https://doi.org/10.36808/if/2017/v143i2/113583

Keywords:

Seed Sources, Variability, D² Analysis, Correlation Coefficients.

Abstract

Germplasm of Pongamia pinnata (L.) Pierre was collected from different geographical regions of Haryana, Rajasthan and Uttar Pradesh. Morphological data on pods and seeds were taken to assess the genetic divergence through D² analysis. Cluster means indicated that cluster IV was best for pod length, pod breadth, seed oil content; cluster III for pod thickness, pod weight, seed length, seed breadth, seed weight, while cluster VI was best for seed thickness. Based on mean performance, genetic divergence and clustering pattern, hybridization involving parents from clusters III, IV and VI may result in a wide spectrum of variability in subsequent populations so as to select seed sources with greater seed size and seed weight with maximum oil content. Correlation analysis showed that pod length had a highly significant positive correlation with all the morphological parameters of pod-seed and seed oil content, while 100-pod and seed weight showed a positive and significant correlation with seed oil content.

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