Journal of Research

Open Access
UGC CARE (Group 1)
  • Year: 2014
  • Volume: 51
  • Issue: 2

Assessment of genetic diversity in Desi cotton (Gossypium arboreum L.)

  • Author:
  • Rajdeep S Khangura1, Lovepreet Singh2, Dharminder Pathak1,, M S Gill1, R S Sohu1
  • Total Page Count: 4
  • DOI:
  • Page Number: 101 to 104

1Department of Plant Breeding and Genetics, School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana – 141 004

2School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana – 141 004

Abstract

Based on various morphological characters including fibre traits, 100 germplasm lines of desi cotton (Gossypium arboreum L.) were assessed for their genetic diversity. Based on Mahalanobis D2 analysis, these accessions were grouped into ten clusters with cluster VIII and IX being the most diverse. The grouping of genotypes into different constellations did not follow any specific pattern. No association between geographical origin of the genotypes and genetic diversity was observed. Similarly, plant body colour did not influence the clustering pattern. Entry PAUGH10, a collection from Garo Hills of Meghalaya, recorded highest values for boll weight (5.6g) and lint percentage (51..9%).

Keywords

Asiatic cotton, Gossypium arboreum, Mahalanobis D2 statistics