Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (5): 1245-1250.DOI: 10.16178/j.issn.0528-9017.20250642

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Evaluation and screening of comprehensive characteristics of different sweet potato varieties (lines) in Wenzhou of China

CHEN Gongkai1,2(), WANG Zhe1,2, HONG Fanglei1,2, WANG Lingli1,2, YANG Hongshuang1,2, LIU Yong′ an1,2()   

  1. 1.Wenzhou Institute of Agricultural Sciences,Wenzhou 325006,Zhejiang
    2.South Zhejiang Key Laboratory of Crop Breeding,Wenzhou 325006,Zhejiang
  • Received:2025-09-04 Online:2026-05-11 Published:2026-05-12
  • Contact: LIU Yong′ an

Abstract:

In order to screen new sweet potato varieties (lines) with high yield,good quality,and strong disease resistance suitable for the ecological conditions in Wenzhou,this study conducted a field comparative trial using Zheshu 13 as the control and evaluated six sweet potato varieties (lines),agronomic traits,resistance to basal rot,yield components,and quality indicators were measured. The results showed that the incidence rate of basal rot of all tested varieties (lines) was extremely significantly (p<0.01)lower than that of the control,with yield increases ranging from 10.52% to 30.96%. Among them,CP158 performed most prominently,with a 667 m2 yield of 3 125.67 kg,a yield increase of 30.96% compared with the control,the lowest incidence rate of basal rot (1.85%),and the highest total taste score (78.5 points),indicating optimal comprehensive traits. CH60 and Xiguahong ranked second and third in terms of yield,respectively. Fushu 604,Jishu 26 and CJ3056 showed moderate yields with high dry matter and starch rates,making them more suitable for starch processing. Correlation analysis revealed a highly significant negative correlation between yield and incidence rate of basal rot. In conclusion,CP158 and CH60 are suitable for promotion and cultivation as fresh-eating sweet potato varieties in Wenzhou,while the other varieties can be utilized differentially based on their variety characteristics.

Key words: sweet potato, basal rot, yield, quality evaluation

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