江西农业大学学报2026，Vol.48Issue(3)：637-645,9.DOI:10.3724/aauj.2026052
籽粒低镉高产早稻品种筛选
Preliminary study on screening early rice varieties for low cadmium accumulation in grains and high yield
摘要
Abstract
[Objective]This study aims to screen early rice varieties with low cadmium(Cd)content in grains and high yield in Jiangxi Province,so as to provide a material basis for the breeding of new rice varieties with low Cd in grains.[Method]Fifty-nine early season rice varieties mainly promoted in Jiangxi Province were selected as test materials.Field plot experiments were conducted to determine rice yield,Cd content in brown rice and Cd enrichment coefficient,and to compare the differences in Cd enrichment among different rice varieties in slightly and moderately Cd-contaminated fields,respectively.[Result]In slightly Cd-contaminated fields,the yield range of different tested varieties was 5.1-8.9 t/hm²,with significant differences in yield;in moderately Cd-contaminated fields,the yield range was 4.45-8.87 t/hm²,and the yield differences were more significant.In slightly Cd-contaminated fields,the Cd content in brown rice of each variety ranged from 0.017 to 0.263 mg/kg,among which 50 varieties had Cd content lower than the national limit standard(0.200 mg/kg);in moderately Cd-contaminated fields,the Cd content in brown rice of each variety ranged from 0.028 to 0.484 mg/kg,among which 16 varieties met the national standard.In slightly Cd-contaminated fields,the Cd enrichment coefficient of brown rice for each variety ranged from 0.06 to 0.85;under moderate Cd contamination,the Cd enrichment coefficient of brown rice for each variety ranged from 0.06 to 1.03.[Conclusion]Considering both rice yield and Cd accumulation in brown rice comprehensively,10 varieties,including Zhong'an 7,Zhong'an 2,Qiliangyou 2216,Zhongjiazao 17,Anfengyou 5020,Bingliangyou 518,Lingliangyou 739,Hongyouzao 1,Jinzhenyouzaosi and You I 527,were screened out as suitable low-Cd and high-yield grain varieties for planting in slightly Cd-contaminated fields.Zhong'an 2,Hongyazao 2,Qiliangyou 2216,Zhong'an 7,Hongyouzao 1,Zhong'anzao 35 and Zhongjiazao 17 can be used as suitable low-Cd and high-yield grain rice varieties for moderately Cd-contaminated fields in Jiangxi rice-growing areas.关键词
水稻/镉/籽粒低镉/产量/早稻/高产Key words
rice/cadmium(Cd)/low-Cd in grains/yield/early season rice分类
农业科技引用本文复制引用
谢云霄,周大虎,边建民,贺浩华,傅军如,李雨蒙,袁海红,王梦豪,刘声琦,李慧,蓝海林,欧阳林娟,陈亮..籽粒低镉高产早稻品种筛选[J].江西农业大学学报,2026,48(3):637-645,9.基金项目
江西省水稻良种联合攻关项目(2022JXNZWZY01)和江西省双季稻低积累品种筛选及配套安全利用技术集成示范项目(JXNK202307-05) Project supported by Jiangxi Provincial Rice Variety Joint Research Project(2022JXNZWZY01)and Selection of Low-Accumulation Double-Cropping Rice Varieties and Integrated Demonstration of Supporting Safe Utilization Technologies in Jiangxi Province(JXNK202307-05) （2022JXNZWZY01）
