江西农业学报Issue(3)：6-10,5.
PEG－6000模拟干旱胁迫对紫甘薯幼苗生理生化指标的影响
Effects of PEG-6000-simulated Drought Stress on Physiological and Biochemical Indexes of Purple Sweet Potato Seedlings
摘要
Abstract
The seedlings of five purple sweet potato varieties were stressed by drought which was simulated by polyethylene gly -col (PEG-6000), and their MDA content, SOD activity, free proline content and plasmalemma relative conductivity were deter-mined.The results showed that:in comparison with the control , drought stress significantly increased the plasmalemma relative con-ductivity, MDA content and free proline content of sweet potato seedlings , but significantly decreased the SOD activity .When the time of drought stress was lengthened , the plasmalemma relative conductivity , MDA content and free proline content of sweet potato seedlings generally revealed a rising trend , while the SOD activity presented the changing rule of rising -decline-rising again-de-cline again.关键词
紫甘薯/PEG-6000/干旱胁迫/生理指标Key words
Purple sweet potato/PEG-6000/Drought stress/Physiological index分类
农业科技引用本文复制引用
龚秋,王欣,后猛,唐维,张允刚,刘亚菊,李强,马代夫..PEG－6000模拟干旱胁迫对紫甘薯幼苗生理生化指标的影响[J].江西农业学报,2015,(3):6-10,5.基金项目
现代农业产业技术体系建设专项（CARS－11）；江苏省农业科技自主创新资金项目“耐盐碱甘薯育种材料创制”［CX（13）2032］。 （）
