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Capsicum frutescens L. Landraces of North-East India: From Phenotypic Diversity Perspective of Unexplored Collection

  • Sudip Kumar Dutta
  • S. B. Singh
  • Vanlalhmangaiha
  • Amrita Banerjee
  • R. S. Akoijam
  • T. Boopathi
  • S. Saha
  • Somnath Roy
Research Article

Abstract

Mizoram and Manipur are the two north-eastern states of India, where maximum diversity of Capsicum frutescens is found. Seventy two Capsicum landraces, consisting predominantly of C. frutescens accessions were collected from the major growing states of north-eastern India. Landraces were compared for 29 qualitative traits and 14 quantitative traits using multivariate methods, including clustering and principal component analysis to assess the patterns of morphological variation. Landraces collected revealed significant differences (P < 0.0001) for all the quantitative traits. Fruit length of >4 cm was found in three landraces (MN-1, MN-2 and MZBEC-2), whereas smallest C. frutescens landraces (in length) were MZBEC-42 (1.15 cm), MZBEC-13 (1.17 cm) and MZBEC-55 (1.27 cm); a variation of 6.5 folds was found in fruit length. Among the 91 inter correlation coefficients studied in quantitative traits, 17 were positively significant (8 at P < 0.01 and 9 at P < 0.05) and three were negatively significant (2 at P < 0.01 and 1 at P < 0.05). Five significant principal components (PC) were identified and accounted for a cumulative variation of 69.88%. Hierarchical cluster analysis grouped 72 landraces into five clusters based on the qualitative traits and into six clusters based on quantitative traits. Altogether, the present study has generated baseline information about the vast intra-specific diversity of C. frutescens landraces of North-East India.

Keywords

Capsicum frutescens L. Landraces Mizoram Phenotypic diversity Principal component analysis Clustering 

Notes

Acknowledgements

The authors acknowledge Dr. S. V. Ngachan (Director, ICAR Research Complex for NEH Region, Umiam, Meghalaya 793 103, India) for extending technical and financial support for the research work. The authors also thank the officers of Agriculture and Horticulture department, Government of Mizoram, India for guiding in formulating the survey plan. There is no conflict of interest in any form with anyone for this work.

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Copyright information

© The National Academy of Sciences, India 2017

Authors and Affiliations

  • Sudip Kumar Dutta
    • 1
  • S. B. Singh
    • 1
  • Vanlalhmangaiha
    • 1
  • Amrita Banerjee
    • 2
  • R. S. Akoijam
    • 1
  • T. Boopathi
    • 1
  • S. Saha
    • 1
  • Somnath Roy
    • 3
  1. 1.ICAR Research Complex for NEH Region, Mizoram CentreKolasibIndia
  2. 2.ICAR Research Complex for NEH RegionUmiamIndia
  3. 3.ICAR-National Bureau of Plant Genetic Resources (NBPGR), Regional StationUmiamIndia

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