华北农学报Issue(z1)：229-233,5.DOI:10.7668/hbnxb.2014.S1.044
硅对铬、铜胁迫下小麦幼苗生理生化指标的影响
Effects of Silicon on Physiological and Biochemical Indexes of Wheat Seedlings under Cr and Cu Stresses
摘要
Abstract
In this study,using wheat variety(Jingdong 8) as material,effects of exogenous silicon on physiologi-cal and biochemical indexes of wheat seedlings under K 2 Cr2 O7 (0.6 mmol/L) and CuSO4 (0.8 mmol/L) stresses were studied in hydroponic conditions .The results showed that the soluble sugar content ,MDA content ,the activity of SOD and POD in wheat seedlings were significantly increased under K 2 Cr2 O7 and CuSO4 stresses.The chlorophyll content in wheat seedlings were reduced significantly under K 2 Cr2 O7 and CuSO4 stresses.Exogenous silicon with the concentration of 1 .5 mmol/L played a noticeable role in reducing the soluble sugar content ,MDA content ,the activ-ity of SOD and POD in wheat seedlings under K 2 Cr2 O7 and CuSO4 stresses.Exogenous silicon with the concentration of 1.0 mmol/L played a noticeable role in creasing the chlorophyll content in wheat seedlings under K 2 Cr2 O7 and CuSO4 stresses.Exogenous silicon with appropriate concentration could alleviate the damage caused by K 2 Cr2 O7 and CuSO4 stresses to the wheat seedlings .关键词
硅/重金属/小麦/生理生化指标Key words
Silicon/Heavy metals/Triticum aestivum/Physiological and biochemical indexes分类
农业科技引用本文复制引用
张志雯,秦素平,陈于和,郭艾英,秦玲,林小虎..硅对铬、铜胁迫下小麦幼苗生理生化指标的影响[J].华北农学报,2014,(z1):229-233,5.基金项目
河北省教育厅项目 （）
