Differential Analysis in the Uptake and Accumulation of Cadmium and Lead by Wheat Varieties with Different Phosphorus Efficiencies

• Published in: Guanʻgai paishui xuebao Vol. 41; no. 4; pp. 49 - 57
• Main Authors: SUN Qizhuang, WANG Long, HUANG Shaomin, XIAO Yatao, SUI Fuqing, QIN Shiyu, LIU Hongen, ZHAO Peng
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.04.2022
• Subjects: cadmium; lead; phosphorus use efficiency; root uptake; wheat
• ISSN: 1672-3317
• DOI: 10.13522/j.cnki.ggps.2021581

【Objective】 Soil contamination by cadmium (Cd) and lead (Pb) is a great environmental concern for food safety, and breeding cultivars that can reduce their uptake is one way to grow crops in Cd-and Pb-contaminated soils. In this paper, we experimentally studied how wheat lines with different phosphorus (P) uptake affect their uptake, translocation and accumulation of P, Cd and Pb in the crops. 【Method】 The experiment consisted of a lab part and a field part. The lab part considered one factor - wheat varieties, and the field part was arranged randomly in soil that had been moderately contaminated by Cd and Pb. In both parts, we measured Cd and Pb uptake and their subsequent translocation. 【Result】 The average P content in the roots of lines with high P (HP) use efficiency was 7.69 mg/g, significantly lower than that in the lines with low P (LP) use efficiency, which was 8.36 mg/g (P<0.05). The average P content in the shoots of HP varieties was 9.73 mg/g, significantly higher than the 8.19 mg/g in the LP cult