Selecting (inter-varietal) Brassica juncea for tolerance to metal-contamination has been proposed as a strategy to develop superior genotypes for phytoextraction of lead (Pb) through selection and breeding techniques. To understand the differences among accessions of a single species to Pb accumulation, a pot experiment was conducted with three B. juncea accessions under levels of Pb added to the soil (0, 90, 180, and 540 mg kg⁻¹). The duration of the growth period was 100 d. Pb concentration levels did not affect the flowering of B. juncea accessions. Plant height, shoot dry matter, and root dry matter were reduced linearly when soil Pb concentration increased to 540 mg kg⁻¹. A significant interaction between Pb concentration levels and accessions was observed for Pb concentration in shoots and roots, indicating genotypic variation in Pb absorption. The concentration of Pb in shoots in accession PI 180266 was 51% higher compared to accessions PI 649105 and PI 432379 when soil Pb concentration increased to 540 mg kg⁻¹. It can be concluded that the B. juncea accessions differed significantly in Pb uptake, and the selection of tolerant cultivars might be helpful for Pb phytoremediation of contaminated soils.

已经提出选择（品种间）芥菜对金属污染的耐受性，作为通过选择和育种技术开发铅（Pb）植物提取优良基因型的策略。为了理解单个物种对Pb积累的种质之间的差异，进行了盆栽试验，在土壤中添加了Pb含量为0、90、180和540 mg kg ^-1的三种芥菜种。生长期为100 d。铅的浓度水平不影响芥菜芽孢杆菌种的开花。当土壤铅浓度增加到540 mg kg ^-1时，株高，枝干和根系的干物质线性减少。。铅和铅在茎和根中的铅含量之间存在显着的相互作用，表明铅吸收的基因型变化。当土壤Pb的浓度增加到540 mg kg ^-1时，PI 180266的芽中的Pb浓度比PI 649105和PI 432379的芽高51％。可以得出结论，Juncea B.菌种对Pb的吸收差异很大，选择耐性品种可能对污染土壤的Pb植物修复有帮助。