Genetic diversity for curd yield and its attributes in late cauliflower

Genetic diversity in cauliflower

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Published

2023-06-28

DOI:

https://doi.org/10.58993/ijh/2023.80.2.2

Keywords:

Brassica oleracea L. var. botrytis , Genetic diversity, PCA, Variability, Transgressive segregants.
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Issue

Vol. 80 No. 2 (2023): Indian Journal of Horticulture

Section

Research Articles

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Copyright (c) 2023 Indian Journal of Horticulture

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Authors

  • Jagmeet Singh Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, Himachal Pradesh, India.
  • Akhilesh Sharma Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, Himachal Pradesh, India.
  • Hem Lata Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, Himachal Pradesh, India.
  • Alisha Thakur Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, Himachal Pradesh, India.
  • Nimit Kumar Department of Genetics and Plant Breeding, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, Himachal Pradesh, India.

Abstract

Genetic diversity was studied in 26 genotypes of late group of cauliflower during winter 2018-19 and 2019- 20. Based on mean performance, DPCaCMS-1 produced significantly high marketable curd weight, 27.38% better than the best check. D2 analysis clustered the genotypes in seven clusters, with the maximum in Cluster I. Genotypes from clusters V and VI with higher inter-cluster genetic divergence would be a valuable source of genes for improvement. Cluster IV represented maximum mean values for marketable curd weight. The maximum contribution towards genetic diversity was made by days to curd initiation followed by leaves/plant and curd diameter. Principal component analysis indicated the five most informative principal components with more than one eigen value, accounting for 83.59% of the total variance for all traits. The genotypes, namely, DPCafW3, DPCaf US, DPCaCMS-1, DPCaCMS-2, DPCaf-1, DPCaCMS-3, DPCaf30, DPCaf13, and DPCafS5-1 seem to be the promising potential genotypes that can be involved in hybridization programmes to identify transgressive segregants with desirable attributes.

How to Cite

Jagmeet Singh, Akhilesh Sharma, Hem Lata, Alisha Thakur, & Nimit Kumar. (2023). Genetic diversity for curd yield and its attributes in late cauliflower: Genetic diversity in cauliflower. Indian Journal of Horticulture, 80(2), 136–142. https://doi.org/10.58993/ijh/2023.80.2.2

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