以花椰菜为试材,用不同浓度Cu~(2+)(12.5、25.0、50.0、100.0mg·L-1)处理花椰菜种子,研究Cu~(2+)胁迫对花椰菜种子的萌发及幼苗生理特性的影响。结果表明:随Cu~(2+)浓度增加,花椰菜植物种子的萌发受到抑制;对根的生长发育影响较大,叶片内叶绿素含量和类胡萝卜素含量呈下降趋势;超氧化物歧化酶(SOD)、过氧化物酶(POD)活性总体上升,丙二醛(MDA)及脯氨酸(Pro)含量呈先升后降的趋势。 Using cauliflower as material, the seeds of cauliflower were treated with Cu 2+ (12.5, 25.0, 50.0, 100.0 mg · L -1) at different concentrations to study the effects of Cu 2+ stress on the germination and seedling physiological characteristics of cauliflower Impact. The results showed that with the increase of Cu 2+ concentration, the germination of cauliflower seeds was inhibited; the growth and development of roots were more affected; the contents of chlorophyll and carotenoids decreased; the activities of superoxide dismutase (SOD) ), The activity of peroxidase (POD) increased and the contents of malondialdehyde (MDA) and proline (Pro) increased firstly and then decreased.