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On-line Access: 2012-06-06

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Journal of Zhejiang University SCIENCE B 2012 Vol.13 No.6 P.494-502


Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars

Author(s):  Ying Chen, Ting-qiang Li, Xuan Han, Zhe-li Ding, Xiao-e Yang, Ye-fei Jin

Affiliation(s):  Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   litq@zju.edu.cn

Key Words:  Cadmium pollution, Food safety, Pakchoi, Pollution-safe cultivars

Ying Chen, Ting-qiang Li, Xuan Han, Zhe-li Ding, Xiao-e Yang, Ye-fei Jin. Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars[J]. Journal of Zhejiang University Science B, 2012, 13(6): 494-502.

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author="Ying Chen, Ting-qiang Li, Xuan Han, Zhe-li Ding, Xiao-e Yang, Ye-fei Jin",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars
%A Ying Chen
%A Ting-qiang Li
%A Xuan Han
%A Zhe-li Ding
%A Xiao-e Yang
%A Ye-fei Jin
%J Journal of Zhejiang University SCIENCE B
%V 13
%N 6
%P 494-502
%@ 1673-1581
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1100356

T1 - Cadmium accumulation in different pakchoi cultivars and screening for pollution-safe cultivars
A1 - Ying Chen
A1 - Ting-qiang Li
A1 - Xuan Han
A1 - Zhe-li Ding
A1 - Xiao-e Yang
A1 - Ye-fei Jin
J0 - Journal of Zhejiang University Science B
VL - 13
IS - 6
SP - 494
EP - 502
%@ 1673-1581
Y1 - 2012
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1100356

The selection and breeding of pollution-safe cultivars (PSCs) is a practicable and cost-effective approach to minimize the influx of heavy metal to the human food chain. In this study, both pot-culture and field experiments were conducted to identify and screen out cadmium pollution-safe cultivars (Cd-PSCs) from 50 pakchoi (Brassica rapa L. ssp. chinensis) cultivars for food safety. When treated with 1.0 or 2.5 mg/kg Cd, most of the pakchoi cultivars (>70%) showed greater or similar shoot biomass when compared with the control. This result indicates that pakchoi has a considerable tolerance to soil Cd stress. Cd concentrations in the shoot varied significantly (P<0.05) between cultivars: in two Cd treatments (1.0 and 2.5 mg/kg), the average values were 0.074 and 0.175 mg/kg fresh weight (FW), respectively. Cd concentrations in the shoots of 14 pakchoi cultivars were lower than 0.05 mg/kg FW. In pot-culture experiments, both enrichment factors (EFs) and translocation factors (TFs) of six pakchoi cultivars were lower than 1.0. The field studies further confirmed that the Hangzhouyoudonger, Aijiaoheiye 333, and Zaoshenghuajing cultivars are Cd-PSCs, and are therefore suitable for growth in low Cd-contaminated soils (≤1.2 mg/kg) without any risk to food safety.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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