| 井永苹,聂岩,李彦,康馨,黄现民,赵瑞君,仲子文.山东偏酸性棕壤区小麦镉低累积品种筛选[J].农业环境科学学报,2023,42(6):1238-1246. |
| 山东偏酸性棕壤区小麦镉低累积品种筛选 |
| Low-cadmium accumulation wheat varieties preparation in acid brown soil region of Shandong Province |
| 投稿时间：2022-08-30 修订日期：2023-02-02 |
| DOI：10.11654/jaes.2022-0860 |
| 中文关键词: 土壤 小麦 产量 低累积 Cd 富集系数 转运系数 |
| 英文关键词: soil wheat yield low-accumulation Cd enrichment coefficient transport coefficient |
| 基金项目:山东省重大科技创新工程项目（2021CXGC010801）；山东省农业科学院创新工程项目（CXGC2022D05） |
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| 中文摘要: |
| 为筛选出适宜于山东偏酸性棕壤Cd污染风险区种植的低累积小麦品种，从当地小麦栽培品种中选出20个作为研究对象，采用田间小区试验对20个小麦品种籽粒Cd积累差异进行研究。结果表明： 20个品种的小麦籽粒中Cd含量范围为0.013~0.116 mg·kg-1，各品种间富集系数和转运系数差异显著，富集系数最大值是最小值的9倍多，不同部位的转移系数最大值是最小值的2~5倍；综合聚类分析、富集系数、转运系数等指标，初步筛选出在试验条件下表现出低累积特性的3个小麦品种（烟农745、济麦55、济糯116），小麦产量指标结果显示其中2个品种的产量高于平均产量，结合健康风险评价指标最终确定出2个产量较高的Cd低累积小麦品种（烟农745、济麦55）；但是对于筛选出的小麦Cd低累积品种的稳定性及其关键影响因素仍需进一步研究和验证。 |
| 英文摘要: |
| To determine the low-cumulative wheat varieties suitable for planting in the Cd pollution risk area of acidic brown soil in Shandong, 20 local wheat cultivars were selected as specimina, and field experiments were conducted to analyze the differences in grain Cd accumulation of the 20 wheat cultivars. The results showed that the Cd content in wheat grains ranged from 0.013 mg·kg-1 to 0.116 mg·kg-1. Furthermore, the enrichment and transport coefficients were significantly different（P<0.05）, among different varieties, the maximum enrichment coefficient is more than 9 times the minimum value, and the maximum transfer coefficient of different parts of wheat is 2-5 times the minimum value. Based on cluster analysis, enrichment coefficient, transport coefficient, and other indicators, 3 wheat varieties （Yannong 745, Jimai 55, Jinuo 116）exhibited low accumulation characteristics under experimental conditions, while the results of wheat yield indicated that 2 of them were higher than the average output. Combined with health risk evaluation indicators, two Cd low-accumulation wheat varieties with higher yields（Yannong 745, Jimai 55）were finally determined. Thus, the present study suggests Cd low accumulation wheat varieties for the safe utilization of local acidic brown soil Cd contaminated arable land. However, further studies are required to confirm the stability of the selected wheat cultivars with low Cd accumulation and the key influencing factors. |
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