Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (5): 1169-1173.DOI: 10.16178/j.issn.0528-9017.20250730

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Evaluation of fruit quality of nine local citrus varieties from Taizhou of China

WANG Luoyun1,2(), KE Fuzhi1,2, NIE Zhenpeng1,2, CUI Changjiang1,2, YANG Yi1,2, HUANG Xiu1,2, SUN Lifang1,2()   

  1. 1.Institute of Citrus Research,Zhejiang Academy of Agricultural Sciences,Taizhou 318000,Zhejiang
    2.National Center for Citrus Variety Improvement,Zhejiang Academy of Agricultural Sciences,Taizhou 318000,Zhejiang
  • Received:2025-10-09 Online:2026-05-11 Published:2026-05-12
  • Contact: SUN Lifang

Abstract:

This study conducted a comprehensive assessment of nine traditional citrus varieties from Taizhou by measuring seven appearance quality indicators and four intrinsic quality indicators,employing principal component analysis(PCA). The results revealed significant(p<0.05)differences in fruit quality among the varieties. Bendiguangju exhibited the highest single fruit weight,while Ruju had the lowest. Dongjiang Bendizao was morphologically similar to Bendizao but contained fewer seeds. Xinben 1 demonstrated the highest solid-acid ratio and the best flavor,whereas Bendiguangju demonstrated the worst flavor. Manju contained the highest vitamin C content. Principal component analysis indicated that fruit longitudinal diameter,fruit transverse diameter,single fruit weight,and fruit shape index were the main indicators for distinguishing different varieties. The cumulative contribution rate of the first four principal components reached 95.645%. Cluster analysis further confirmed that Bendiguangju,Ruju,and Manju exhibited the most distinct quality characteristics. This study provides a scientific basis for the utilization and varietal breeding of local citrus germplasm from Taizhou.

Key words: citrus, fruit, appearance quality, intrinsic quality, principal component analysis

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