| Autor: |
Lu M; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China., Cao X; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China., Pan J; Agriculture Bureau of Changxing County, Zhejiang Province, Huzhou, 313000, People's Republic of China., Li T; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China., Khan MB; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China., Gurajala HK; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China., He Z; Indian River Research and Education Center, University of Florida, Institute of Food and Agricultural Sciences, Fort Pierce, FL, 34945, USA., Yang X; Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China. xeyang@zju.edu.cn. |
| Abstrakt: |
Over the last decade, human population has been facing great challenges in ensuring appropriate supply of food free from cadmium (Cd) contamination. Selection of genetically low-Cd wheat (Triticum aestivum L.) genotypes, with a large biomass and high accumulation of Cd in straw but low-Cd concentration in grains, is an inventive approach of phytoremediation while keeping agricultural production in moderately contaminated soils. In this study, variations in Cd uptake and translocation among the 30 wheat genotypes in two different sites were investigated in field experiments. Significant differences in grain Cd concentration were observed between the two sites, with averaged values of 0.048 and 0.053 mg kg -1 DW, respectively. Based on straw Cd accumulation, grain Cd concentration, and TF rs , Bainong207 and Aikang58 for site A and Huaimai23 and Yannong21 for site B are promising candidates of low-Cd genotypes, which have considerable potential in achieving phytoremediation while keeping agricultural production on moderately or slightly Cd-polluted soil. The results indicate that it is possible to select the optimal low-Cd genotypes of wheat for different soil types by taking consideration of the effect of soil-wheat genotype interaction on grain Cd concentration. |
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