XING Dan,MAO Mingming,MOU Yumei,et al.Cd Transport and Concentration Coefficient of Clustered Peppers for Mechanical Harvesting[J].Northern Horticulture,2021,(15):35-39.[doi:10.11937/bfyy.20204196]
适宜机采型簇生朝天椒与线椒迁移积累Cd特性分析
- Title:
- Cd Transport and Concentration Coefficient of Clustered Peppers for Mechanical Harvesting
- Keywords:
- Cd; low concentration; transport; Guizhou
- 文献标志码:
- A
- 摘要:
- 以簇生朝天椒CC1、CC2、CC3和簇生线椒CX1、CX2、CX3为试材，采用盆栽试验,分析种植于Cd污染土壤后，果实、根部及根围土壤Cd含量变化，探讨不同品种迁移积累Cd能力变化，以期为当地推广应用适宜品种提供参考依据。结果表明：1）簇生线椒果实和根部Cd含量低于朝天椒，其中簇生线椒CX3果实Cd含量最低，折算为鲜椒果实Cd含量低于国家食品安全标准GB2762-2012限量要求（Cd<0.05 mg·kg-1）；2）簇生线椒迁移能力低于簇生朝天椒，除簇生朝天椒CC1迁移系数大于1外，其它品种迁移系数均小于1；3）簇生线椒根部和果实积累能力均低于簇生朝天椒，且簇生线椒可食部位积累系数均小于1。综合而言，簇生线椒CX3果实Cd未超标、迁移系数和积累系数均小于1。因而，喀斯特区较适宜推广应用簇生线椒CX3。
- Abstract:
- There were three varieties of red cluster peppers and line peppers in cluster as screening varieties,respectively.Using pot experiment,cultivated in soil contaminated by Cd.After the harvest,the changes of Cd content in the fruits,roots and soil around the roots to explore Cd accumulation ability of different cultivars were analyzed，in order to provide reference for the promotion of suitable varieties.The results showed that,1) the contents of Cd in the root and the fruit of line peppers in cluster were lower than red cluster peppers.The Cd content of CX3 fruit was the lowest,and lower than the limition of national food safety standard GB2762-2012 (Cd<0.05 mg·kg-1).2) The transport ability of red cluster peppers was higher line peppers in cluster.With the exception of CC1,the migration coefficient of other varieties was less than one.3) The root and fruit accumulation ability of line peppers in cluster were lower than red cluster peppers.The accumulation coefficients of edible parts of line peppers in cluster were less than one.In general,Cd content of the fruit did not exceed the standard for the variety CX3,in which the migration coefficient and accumulation coefficient were less than one.Therefore,it is suitable to be popularized and applied in karst area.
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备注/Memo
第一作者简介：邢丹（1983-），女，博士，副研究员，现主要从事辣椒绿色生产技术等研究工作。E-mail:2004xingdan@163.com.责任作者：胡明文（1969-），男，本科，研究员，现主要从事辣椒育种与栽培技术等研究工作。E-mail:445478454@qq.com.基金项目：贵州省科技计划资助项目(黔科合支撑[2018]2329)；财政部和农业农村部：国家现代农业产业技术体系资助项目（CARS-24-G-20）；贵州省科技平台及人才团队计划资助项目(黔科合平台人才[2017]5709)。收稿日期：2020-09-28