Journal of Crop Science and Biotechnology

, Volume 21, Issue 5, pp 499–506 | Cite as

Phenotypic Variation in a Germplasm Collection of Pepper (Capsicum chinense Jacq.) from Korea

  • Binod Prasad Luitel
  • Na-Young Ro
  • Ho-Cheol Ko
  • Jung-Sook Sung
  • Ju-Hee Rhee
  • On-Sook HurEmail author
Research Article


A total of 47 core collections of pepper (Capsicum chinense Jacq.) conserved in National Agrobiodiversity Center (NAC) were studied under field condition at Jeonju over two consecutive years (2015 and 2016). All accessions were characterized for their 14 qualitative and 16 quantitative characters. Results revealed that both qualitative and quantitative characters exhibited wide variation among the studied germplasm. Distribution of fruit characters (fruit length, width, and fruit wall thickness) among the accessions was positively skewed. Of the 47 accessions evaluated, 38.3% accessions had conical shaped fruits and mature fruit color was predominantly red (51.1%), orange (21.3%) and yellow (14.9%). Principal component analyses revealed that (i) 56.64% of the qualitative (fruit shape, color and fruit surface) variation and (ii) 89.42% of the quantitative (plant width, height and fruit maturity days) variation were explained by the first two components. Clustering revealed two groups and dendrogram revealed morphological variation among accessions. The phenotypic diversity exists in this core collections provide valuable information to improve agronomic traits in pepper breeding program.

Key words

Agronomic traits cluster core collections phenotypic diversity principal component 


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Copyright information

© Korean Society of Crop Science (KSCS) and Springer Nature B.V. 2018

Authors and Affiliations

  • Binod Prasad Luitel
    • 1
  • Na-Young Ro
    • 2
  • Ho-Cheol Ko
    • 3
  • Jung-Sook Sung
    • 2
  • Ju-Hee Rhee
    • 2
  • On-Sook Hur
    • 2
    Email author
  1. 1.National Agriculture Genetic Resources CentreNepal Agricultural Research CouncilKhumaltarNepal
  2. 2.National Agrobiodiversity Center, National Institute of Agricultural SciencesRural Development AdministrationJeonjuRepublic of Korea
  3. 3.Planning and Coordination BureauRural Development AdministrationJeonjuRepublic of Korea

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