农业环境科学学报2025，Vol.44Issue(6)：1467-1476,10.DOI:10.11654/jaes.2024-0716
云南马铃薯低镉铅累积品种的筛选与验证
Screening and verification of potato varieties with low cadmium and lead accumulation in Yunnan
摘要
Abstract
To explore the effects of different potato varieties on cadmium(Cd)and lead(Pb)absorption and accumulation in Cd and Pb contaminated soil.A field experiment was conducted to study the differences of Cd and Pb contents and enrichment factors(BCF)in the edible parts of different potato varieties with 37 potato varieties mainly cultivated in Yunnan agricultural production as the research objects.The varieties with low Cd and Pb accumulation in the edible parts of potato were screened out by cluster analysis.Different Cd and Pb content treatments were set up for the selected low-accumulation varieties for pot verification test.The field experiment showed that the contents of Cd and Pb in the edible parts of 37 potato varieties were significantly different under the condition of moderate pollution of Cd and Pb.The content ranges were 0.025～0.460 mg·kg-1 and 0.019～0.760 mg·kg-1,respectively.According to the national limit standards of contaminants in food,Cd(0.1 mg·kg-1)and Pb(0.2 mg·kg-1),the exceedance rates of Cd and Pb were 59.46%and 24.32%,respectively.The BCF of Cd and Pb in the edible part of each test potato ranged from 0.016-0.173 and 0.000 40-0.003 80,respectively,with BCF less than 1,and BCFCd was significantly greater than BCFPb.The varieties with high accumulation of Cd and Pb were screened by cluster analysis:Xiaoziyu,Hezuo 88 and Qingshu 9.The medium accumulation varieties were You 10 and Yan 11.The low accumulation varieties were Atlantic,You 11,Feiwuruita,Yan 13,Jizhangshu 12,Yunshu 104,Ke 35,You 13,You 15,Yan 10,Dong 317,Zaodabai,Zuanxinwu and Yunshu 105.The pot experiment showed that the single potato weight,plant height and stem diameter of Yunshu 104,Yunshu 105 and Qingshu 9 decreased with the increase of Cd and Pb pollution.The content of Cd and Pb in the edible part showed an upward trend,and the BCF was less than 0.2.The content of Cd and Pb in the edible part of Qingshu 9 exceeded the maximum limit standard under the moderate pollution treatment of Cd and Pb(T2,T3).The content of Pb in the edible part of Yunshu 104 exceeded the maximum limit standard under heavy pollution treatment(T4).The content of Cd and Pb in the edible part of Yunshu 105 did not exceed the maximum limit standard under all treatments.Therefore,the study showed that 37 potato varieties could be planted in strictly controlled cultivated land to produce edible potatoes.Among them,14 varieties with low accumulation of Cd and Pb in edible parts,such as Atlantic and Yunshu 104,can be popularized and planted in areas with moderate and mild pollution of Cd and Pb.关键词
马铃薯/镉/铅/复合污染/累积/筛选Key words
potato/cadmium/lead/combined pollution/accumulation/screening分类
农业科技引用本文复制引用
陆正利,周洪印,木丽远,泽尔拉都,王立娟,吴龙华,张乃明..云南马铃薯低镉铅累积品种的筛选与验证[J].农业环境科学学报,2025,44(6):1467-1476,10.基金项目
NSFC-云南联合基金重点项目(U2002210) （U2002210）
云南省科技人才平台项目(202405AM340004) NSFC-Yunnan Joint Fund Key Projects(U2002210) （202405AM340004）
Yunnan Science and Technology Talent Platform Project(202405AM340004) （202405AM340004）
