Multivariate analysis in onion (Allium cepa L.)

Authors

  • MH Rashid Senior Scientific Officer, ORC, Bangladesh Agricultural Research Institute (BARI), Gazipur
  • AKMA Islam Assistant Professor, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur
  • MAK Mian Professor, Department of Genetics and Plant Breeding, BSMRAU, Gazipur
  • T Hossain Professor, Department of Crop Botany, BSMRAU, Gazipur
  • ME Kabir MS Student, Department of Genetics and Plant Breeding, BSMRAU, Gazipur

DOI:

https://doi.org/10.3329/bjar.v37i4.14375

Keywords:

onion, multivariate analysis, genetic divergence

Abstract

Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic divergence using Mahalanobi´s D2 and Rao´s canonical analysis. Altogether five clusters were formed. The pattern of distribution of genotypes into five clusters was random demonstrating that the geographical isolation might not be the only factor causing genetic diversity. Leaf length and sulfur content contributed predominantly towards genetic divergence. Cluster III recorded the highest means for number of leaves per plant, leaf length, bulb length, plant height, and bulb yield. The results obtained from D2 analysis were confirmed by canonical analysis. The genotype G12 showed highest mean performance for moisture content (88.49%), G13 for leaf length (39.06 cm), G15 for neck diameter at vegetative stage (11.21 mm), bulb length (49.09 mm), plant height (64.82 cm) and as well as bulb yield (13.17 t/ha), G19 for percent sulfur content (0.84) and G26 for number of leaves per plant (12), respectively.

DOI: http://dx.doi.org/10.3329/bjar.v37i4.14375

Bangladesh J. Agril. Res. 37(4): 573-582, December 2012

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Published

2013-03-31

How to Cite

Rashid, M., Islam, A., Mian, M., Hossain, T., & Kabir, M. (2013). Multivariate analysis in onion (Allium cepa L.). Bangladesh Journal of Agricultural Research, 37(4), 573–582. https://doi.org/10.3329/bjar.v37i4.14375

Issue

Vol. 37 No. 4 (2012)

Section

Articles