Abstract Pot experiments were conducted to investigate the seasonal and genetic variations of Cd accumulation among 18 pakchoi cultivars (Brassica chinensis). The relationship between Cd accumulation and the transpiration rate was investigated as well through hydroponic experiment. Cd concentrations in the edible parts of pakchoi grown in summer (0.33–1.61 mg·kg−1) were about 1.1–1.7 times higher than those in spring (0.25–0.96 mg·kg−1), and the uptake of Cd in both seasons differed markedly among cultivars. Positive correlation was observed between the transpiration rate and Cd concentration in the edible parts of 12 pakchoi cultivars grown in nutrient solution. Pakchoi planting in summer led to a higher accumulation of Cd in the edible parts than growing in spring.

中文翻译：

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生长季节和基因型对甘蓝Cd积累的影响

摘要 通过盆栽试验，研究了18个小白菜品种（Brassica chinensis）中Cd积累的季节性和遗传变异。还通过水培实验研究了 Cd 积累与蒸腾速率之间的关系。夏季生长的小白菜可食部分的镉浓度（0.33-1.61 mg·kg-1）比春季生长的（0.25-0.96 mg·kg-1）高约1.1-1.7倍，两者对镉的吸收品种间季节差异显着。在营养液中生长的 12 个小白菜品种的可食部分的蒸腾速率和 Cd 浓度之间观察到正相关。与春季种植相比，夏季种植的小白菜在可食用部分中积累了更高的镉。