ORIGINAL RESEARCH
Identification of the Cadmium Accumulation
Capabilities of 20 Rice (Oryza sativa L.) Genotypes
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1
Crop Characteristic Resources Creation and Utilization Key Laboratory of Sichuan Province,
Mianyang Academy of Agricultural Sciences, Mianyang, Sichuan, China
2
Zigong Academy of Agricultural Sciences, Zigong, Sichuan, China
3
The Experimental High School Attached To UESTC, Chengdu, Sichuan, China
4
College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
Submission date: 2025-03-05
Final revision date: 2025-04-02
Acceptance date: 2025-04-19
Online publication date: 2025-06-18
Corresponding author
Wei Yin
Zigong Academy of Agricultural Sciences, Zigong, Sichuan, China
Dingyou Liu
Crop Characteristic Resources Creation and Utilization Key Laboratory of Sichuan Province,
Mianyang Academy of Agricultural Sciences, Mianyang, Sichuan, China
KEYWORDS
TOPICS
ABSTRACT
In some areas, the paddy fields have been contaminated to varying degrees by heavy metal
cadmium (Cd). In order to reduce the accumulation of Cd in rice (Oryza sativa L.), 20 different rice
genotypes were exposed to a 1 mg/L Cd condition to assess their Cd accumulation capabilities.
The treatment of Cd resulted in a decrease in plant height for most rice materials, with the exception
of “Jiaxiang3A/6139”. Additionally, the treatment of Cd had varying effects on the plant height
and biomass. The resistance index ranged from 0.40 to 1.49, with “Jiaxiang3A/6139” demonstrating
the highest resistance. The root Cd contents in the different rice materials ranged from 267.49
to 540.84 mg/kg, while the shoot Cd contents ranged from 38.20 to 121.76 mg/kg. “Mianhui6139”
had the highest shoot Cd content, whereas “Jiaxiang3A/6139” had the lowest. The Cd translocation
factor of rice materials varied between 0.076 and 0.431. Furthermore, cluster analysis revealed that
“Mianhui6139” and “Shen9A/815” formed a distinct category, “Yulong1A/815” and “Mianhui815”
formed another category, and “Chuankangyou6139” and “Jiaxiang3A/6139” formed a separate category.
The remaining 14 rice materials were grouped into a different category. Therefore, “Jiaxiang3A/6139”
is a promising candidate for breeding and safe production of rice in Cd-contaminated paddy fields
due to its low-Cd accumulation capabilities.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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