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| Screening Cd enrichment and transport characteristics of low-cadmium and high-yield spring wheat varieties |
| Received:October 05, 2022 |
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| KeyWord:spring wheat;cadmium(Cd);low Cd accumulation and high yield;bioaccumulation factor;transport factor |
| Author Name | Affiliation | E-mail | | MA Fengyi | College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019 | | | MA Lichao | College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019 | | | ZHAO Baoping | College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019 | zhaobaoping82@163.com | | WANG Yongning | Inner Mongolia Agriculture and Animal Husbandry Ecological and Resource Protection Center, Hohhot 010000 | | | LU Ruiying | Bayannur City Cultivated Land Quality Monitoring and Protection Center, Bayannur 015000 | | | GUO Xiaoyu | Inner Mongolia Agriculture and Animal Husbandry Ecological and Resource Protection Center, Hohhot 010000 | | | CHEN Miao | Urad Rear Banner Eco-Energy and Environmental Protection Station in a rural pastoral area, Bayannur 015000 | | | LIU Jinghui | College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019 | |
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| Abstract: |
| Screening of spring wheat(Triticum aestivum L.) varieties with low Cd accumulation and high yield characteristics can make spring wheat safe for production and utilization in mildly Cd contaminated farmlands. In this study, 21 spring wheat varieties(serial number X1-X21) were studied, and field experiments were carried out in 2020 and 2021. Spring wheat varieties with low Cd and high yield characteristics were screened through grain Cd content and yield clustering analysis, and the differences in yield, Cd bioaccumulation factor, and transport factor of the different varieties were analyzed. The results showed that 11 varieties, including X4, X6-X8, X10, X16-X21, had the characteristics of low Cd and high yield, and a target hazard factor of <1. X14 is a variety with high Cd accumulation and low yield, accounting for 52.38% and 4.76% of the tested varieties, respectively. Based on the results of the two-year experiment, the bioaccumulation factor of the stems of low-yielding and medium-Cd spring wheat varieties was 0.4 times higher, and the transport factor of roots, stems, leaves and husks of low-yielding and high-Cd spring wheat varieties were 2.5, 2.2, 1.8 times and 2.2 times higher than those of high-yielding and low-Cd spring wheat varieties, respectively. In summary, 11 high-yield and low-Cd spring wheat varieties, such as Fengqiang No.6 and Fengqiang No.11, can be promoted and planted in Cd-polluted farmlands. |
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