What does this research mean for the field?

Specific early rice varieties, including Zhong'an 2, Zhong'an 7, Qiliangyou 2216, and Zhongjiazao 17, maintain high yields while keeping grain cadmium levels below national safety standards in both mildly and moderately cadmium-polluted soils. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to screen early rice varieties for low cadmium accumulation and high yield to help develop new varieties.

April 10, 2026ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS0 citations

Preliminary Study on Screening Early Rice Varieties for Low Cadmium Accumulation in Grains and High Yield

YXYunxiao Xie YLY.N. LI HYHaihong Yuan

Key Points

The aim is to screen early rice varieties for low cadmium accumulation and high yield to help develop new varieties.
Selected 59 rice varieties in Jiangxi Province for field trials.
Measured rice yield, brown rice cadmium content, and cadmium accumulation coefficient.
Compared different rice varieties under light and moderate cadmium contamination.
In light cadmium contamination fields, yield ranged from 5.1 to 8.9 t/hm2 with significant differences.
In moderate cadmium contamination fields, yield ranged from 4.45 to 8.87 t/hm2, showing even greater differences.
In light contamination, 50 varieties had brown rice cadmium levels below the national limit of 0.200 mg/kg.
In moderate contamination, 16 varieties also met the national standard.
Ten rice varieties suitable for low cadmium and high yield were identified for light contamination conditions.

Abstract

【目的】通过筛选江西省籽粒低镉高产早稻品种，为水稻籽粒低镉新品种的选育与推广提供材料基础。【方法】本研究选择江西省主推的59个早稻品种为材料，采用田间小区试验，测定水稻产量、糙米镉含量和镉富集系数，比较不同水稻品种分别在轻度和中度镉污染田镉富集差异。【结果】轻度镉污染田中，不同供试品种产量区间为5.1 ~ 8.9 t/hm2，产量差异显著；中度镉污染田中，产量区间为4.45 ~ 8.87 t/hm2，产量差异更加显著。轻度镉污染田中，各品种糙米镉含量区间为0.017 ~ 0.263 mg/kg，其中有50个品种均低于国家限量标准（0.200 mg/kg）；中度镉污染田中，各品种糙米镉含量区间为0.028 ~ 0.484 mg/kg，其中有16个品种均低于国标。轻度镉污染田中，各品种糙米镉富集系数范围为0.06 ~ 0.85；中度镉污染下，各品种糙米镉富集系数范围为0.06 ~ 1.03。【结论】综合考虑水稻产量与糙米镉累积情况，初步筛选出轻度镉污染田适宜种植的籽粒低镉高产品种为中安7号、中安2号、启两优2216、中嘉早17、安优5020、兵两优518、陵两优739、洪优早1号、金珍优早丝、优I527等10个品种，而中安2号、洪崖早2号、启两优2216、中安7号、洪优早1号、中安早35和中嘉早17可作为江西稻区镉中度污染田适宜种植的籽粒低镉高产水稻品种。

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Xie et al. (2026) studied this question.

synapsesocial.com/papers/69d894ec6c1944d70ce05ce0 https://doi.org/10.3724/aauj.2026052

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April 10, 2026ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS0 citations

Preliminary Study on Screening Early Rice Varieties for Low Cadmium Accumulation in Grains and High Yield

YXYunxiao Xie YLY.N. LI HYHaihong Yuan

Key Points

The aim is to screen early rice varieties for low cadmium accumulation and high yield to help develop new varieties.
Selected 59 rice varieties in Jiangxi Province for field trials.
Measured rice yield, brown rice cadmium content, and cadmium accumulation coefficient.
Compared different rice varieties under light and moderate cadmium contamination.
In light cadmium contamination fields, yield ranged from 5.1 to 8.9 t/hm2 with significant differences.
In moderate cadmium contamination fields, yield ranged from 4.45 to 8.87 t/hm2, showing even greater differences.
In light contamination, 50 varieties had brown rice cadmium levels below the national limit of 0.200 mg/kg.
In moderate contamination, 16 varieties also met the national standard.
Ten rice varieties suitable for low cadmium and high yield were identified for light contamination conditions.

Abstract

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Cite This Study

Xie et al. (2026) studied this question.

synapsesocial.com/papers/69d894ec6c1944d70ce05ce0 https://doi.org/10.3724/aauj.2026052

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