Electronic Journal of Plant Breeding

Open Access
SCOPUS
  • Year: 2019
  • Volume: 10
  • Issue: 1

Determination of genetic diversity in indigenous cultivars of onion (Allium cepa L.) by multivariate analysis under mid hill zone of North-Western Himalayas, India

  • Author:
  • Yudhvir Singh1, Vishalakshi1, Bhallan Singh Sekhon1,, Arti Verma2, Surbhi Sharma3, Simran Sharma4
  • Total Page Count: 8
  • Page Number: 230 to 237

1Department of Vegetable Science & Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, Himachal Pradesh, 176062, India

2Punjab Agricultural University, Krishi Vigyan Kendra, Mansa, Punjab, 151505, India

3Department of Agriculture, Government of Himachal Pradesh, Solan, Himachal Pradesh, 173212, India

4School of Agricultural Sciences, Jaipur National University, Jaipur, Rajasthan, 302017, India

Abstract

The present investigation was carried out at the Experimental Farm of the Department of Vegetable Science and Floriculture, CSK HPKV Palampur to assess the genetic divergence in indigenous cultivars of onion. Fifty eight genotypes were evaluated in Randomized Block Design with three replications during rabi 2016–17. Data were recorded on 11 yield and yield related traits. The multivariate analysis revealed considerable genetic diversity in the 58 genotypes. Genotypes were arranged into eight clusters with maximum genotypes in cluster II. Marketable yield contributed maximum towards total genetic divergence followed by equatorial diameter and polar diameter. Eleven genotypes namely, ON14–27, ON15–16, ON16–35, ON16–17, ON16–25, ON16–24, ON16–11, ON16–22, ON14–23, ON15–42, ON15–33 along with the standard check Palam Lohit could offer promise for their direct use as varieties and as potential parents in future breeding programmes to isolate transgressive segregants.

Keywords

Genetic divergence, genotypes, marketable yield, onion, transgressive segregants