Screening and comprehensive evaluation of low-Cd accumulating maize varieties in heavy metal-contaminated farmland of Northwestern Hubei

doi:10.14088/j.cnki.issn0439-8114.2026.07.004

Abstract

Abstract: To screen maize (Zea mays L.) varieties with high yield potential and low-cadmium (Cd) accumulation for heavy metal-contaminated farmland in Northwest Hubei, a randomized block experiment was conducted on a heavy metal-contaminated farmland using 15 maize varieties. The agronomic traits, yield, and the contents of cadmium (Cd), lead (Pb), chromium (Cr), arsenic (As) and mercury (Hg) in grain of all varieties were determined. One-way analysis of variance (ANOVA) and the LSD method were adopted to compare differences among varieties. The entropy weight-TOPSIS model was applied for multi-index comprehensive evaluation and ranking, and Pearson correlation analysis was used to explore the relationships between agronomic traits and grain Cd accumulation. The results showed that extremely significant differences (P<0.001) existed in grain yield and grain Cd content among different maize varieties. The average yield ranged from 5.48 to 7.66 t/hm², among which Tongyu 609, Tongyu 808 and Mengyu 298 presented relatively high yields. The top five varieties in the comprehensive evaluation by the entropy weight-TOPSIS model were Weike 702, Mengyu 298, Tongyu 808, Huayu 130 and Aiheyu 501. These superior varieties generally featured large biomass and robust stalks. Correlation analysis indicated that key above-ground agronomic traits (plant height, biomass) had no significant correlation with grain Cd accumulation. In conclusion, varieties including Weike 702, Mengyu 298 and Tongyu 808 exhibited high yield and low heavy metal accumulation in heavy metal-contaminated farmland of Yunxi County. They were suitable for popularization and cultivation in this area and other similarly contaminated farmlands.

Key words: maize (Zea mays L.), cultivar screening, heavy metal contamination, entropy weight-TOPSIS, comprehensive evaluation, Northwestern Hubei

CLC Number:

S513
X53

XU Zi-gang, QIN Dian-feng, ZHOU Hong-yu, YANG Li, LIU Bo, SONG Na, HONG Jun. Screening and comprehensive evaluation of low-Cd accumulating maize varieties in heavy metal-contaminated farmland of Northwestern Hubei[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(7): 17-22.

References

[1] 王永梅,袁雨珍,王梓成,等.生物炭协同化肥减量对重金属污染土壤甜玉米安全生产的长期效应[J].生态环境学报,2025, 34(12):1962-1973.
[2] 陈文,赵炫越,王晟,等.滇东Cd、Pb污染耕地玉米低累积品种筛选及机制分析[J].环境污染与防治,2025,47(10):57-63.
[3] 陈能场,郑煜基,何晓峰,等.《全国土壤污染状况调查公报》探析[J].农业环境科学学报,2017,36(9):1689-1692.
[4] 罗永露,隋建枢,陈天青,等.小麦品种低磷胁迫下高效基因型品种的筛选[J].耕作与栽培,2021,41(5):12-14,19.
[5] 邓婷,吴家龙,卢维盛,等.不同玉米品种对土壤镉富集和转运的差异性[J].农业环境科学学报,2019,38(6):1265-1271.
[6] 陈婷,龙胜楼,孙媛媛,等.镉/铅低积累水稻品种筛选及其人体健康风险评价[J].农业环境科学学报,2025(5):1178-1189.
[7] 刘奇,王晟,何涛,等.不同玉米品种对Pb、Cd积累与转运差异研究[J].生态与农村环境学报,2024,40(1):130-137.
[8] 刘昭兵,纪雄辉,彭华,等.不同生育期水稻对Cd、Pb的吸收累积特征及品种差异[J].土壤通报,2011,42(5):1125-1130.
[9] GB 15618—2018,土壤环境质量农用地土壤污染风险管控标准(试行)[S].
[10] 鲁如坤. 土壤农业化学分析方法[M].北京:中国农业科学技术出版社,2000.
[11] GB2762—2022,食品安全国家标准食品中污染物限量[S].
[12] 张发游. 不同郁闭度和坡位对杉木与马尾松林下套种岗梅的影响[J].林业与环境科学,2025,41(3):136-142.
[13] 张宇,陈末.基于熵权法-层次分析法与TOPSIS模型的吉林市水资源承载力评价研究[J].陕西水利,2025(12):25-28,32.
[14] 余永松,付宏阳,罗义,等.十堰市林下食用菌产业发展潜力测算与评价[J/OL].中国食用菌,1-9[2026-05-15]. https://link.cnki.net/urlid/53.1054.Q.20251225.1448.002.
[15] 盛钟尹. 基于TOPSIS法的农产品安全信用评价研究[D].武汉:武汉轻工大学,2015.
[16] 娄义晟,白伟,孙占祥,等.辽西半干旱区不同覆膜处理对春玉米产量和水分利用效率的影响[J].中国农业大学学报,2025,30(12):149-162.
[17] 郑涵. 稻田土壤中Cd形态与有效性主要影响因子与调控关键技术[D].北京:中国农业科学院,2020.
[18] SASAKI A,YAMAJI N,YOKOSHO K,et al.Nramp5 is a major transporter responsible for manganese and cadmium uptake in rice[J]. The plant cell, 2012, 24(5): 2155-2167.
[19] YUE J T, ZHANG N, WU D Z, et al. Molecular insights into cadmium transport and micronutrient crosstalk in rice: Towards minimizing grain Cd[J/OL]. Journal of integrative plant biology, 2025. https://doi.org/10.1111/jipb.70094.
[20] 刘丽娟,刘延刚,金桂秀.用基于熵值赋权的DTOPSIS法综合评价水稻品种[J].山东农业科学,2022,54(7):39-45.
[21] 潘俊,王兴作.基于AHP-TOPSIS的土壤重金属污染修复植物适宜性评价[J].沈阳建筑大学学报(自然科学版),2024, 40(3):563-569.
[22] URAGUCHI S, KAMIYA T, SAKAMOTO T, et al.Low-affinity cation transporter (OsLCT1) regulates cadmium transport into rice grains[J]. Proceedings of the national academy of sciences of the United States of America, 2011, 108(52): 20959-20964.
[23] MIYADATE H, ADACHI S, HIRAIZUMI A, et al.OsHMA3, a P_1B-type of ATPase affects root-to-shoot cadmium translocation in rice by mediating efflux into vacuoles[J]. New phytologist, 2011, 189(1): 190-199.