Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (3): 644-651.DOI: 10.16178/j.issn.0528-9017.20240408

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Comprehensive evaluation of germplasm resources of Ophiopogon japonicus from Zhejiang Province based on principal component and cluster analysis

GONG Fuyu1(), XU Jianzhong1(), LI Zhenfeng2, WANG Zhi’an1   

  1. 1.Zhejiang Research Institute of Traditional Chinese Medicine Co. ,Ltd. ,Hangzhou 310023,Zhejiang
    2.Zhengda Qingchunbao Pharmaceutical Co. ,Ltd. ,Deqing 313200,Zhejiang
  • Received:2024-05-20 Online:2026-03-11 Published:2026-03-30
  • Contact: XU Jianzhong

Abstract:

Comprehensive evaluation of the diversity among different germplasm resources of Ophiopogon japonicus from Zhejiang can provide a theoretical basis for screening superior germplasms. In this study,20 materials of O. japonicus from different sources were collected,and 12 main agronomic traits along with 4 quality traits were measured. Systematic evaluation was conducted using principal component analysis(PCA)and cluster analysis. The results showed that variations existed among all traits across the germplasms,with the coefficient of variation(CV)for methylophiopogonanone B content being the highest(reaching 151.48%),while the CVs for total flavonoid content and leaf width were relatively low. PCA extracted four principal components,whose cumulative variance contribution rate reached 83.091%,effectively characterizing the 16 traits. The comprehensive evaluation indicated that germplasm resources from Xiaolin Town(XL),Shengshan Town(SS),and Xinpu Town(XP)in Cixi City,Zhejiang Province,ranked the top three in scores and can be used as excellent materials for parental selection in O. japonicus breeding. Compared with wild resources,local landraces have developed a more favorable combination of traits through long-term cultivation,making them more suitable as parents for genetic breeding. This study provides a reference for the future utilization of O. japonicus germplasm resources and the breeding of new varieties.

Key words: Ophiopogon japonicus, germplasm resource, principal component analysis, cluster analysis, comprehensive evaluation

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