本试验通过研究铬对黄瓜幼苗的胁迫作用,揭示铬对黄瓜的伤害机制,为预测重金属的污染提供理论依据。以霍格兰营养液中添加不同试验浓度的铬,分别为0、0.5、1、2、5、10 mg/L,研究铬对黄瓜种子的发芽率、幼苗生物量累积的影响。结果表明:低浓度的铬促进黄瓜种子的发芽和黄瓜幼苗的生长发育,高浓度的铬抑制黄瓜幼苗的生长发育,0.5 mg/L铬溶液处理的幼苗长势最佳。 In this study, chromium stress on cucumber seedlings was studied to reveal the mechanism of chromium damage to cucumber, providing a theoretical basis for the prediction of heavy metal pollution. The effects of chromium on the germination rate and seedling biomass accumulation of cucumber seeds were studied by adding different concentrations of chromium to Hoagland nutrient solution at 0, 0.5, 1, 2, 5 and 10 mg / L, respectively. The results showed that low concentrations of chromium promoted the germination of cucumber seeds and the growth of cucumber seedlings. High concentrations of chromium inhibited the growth of cucumber seedlings. The seedlings treated with 0.5 mg / L chromium solution had the best growth.