杭州师范大学学报（自然科学版）2018，Vol.17Issue(2)：146-152,7.DOI:10.3969/j.issn.1674-232X.2018.02.007
镁缺乏和过量胁迫对大麦幼苗生长以及生理生化指标的影响
Effects of Magnesium Deficiency and Excessive Stress on the Growth and Physiological and Biochemical Indexes of Barley Seedlings
摘要
Abstract
Taking Zju3 and Morex as the materials,using the solution culture method in MgSO4concentrations separately were 0%,50%,100%,150% and 200%,the effects of magnesium deficiency and excess stress on the physiological and biochemical indexes of Zju3 and Morex in seedling growth were studied to reveal the physiological mechanism of magnesium stress in barley.The results showed that under the stress of magnesium,the root length,dry weight and SPAD of two barley cultivars decreased,malondialdehyde(MDA)concentration,peroxidase(POD)activity and GSH concentration increased,superoxide dismutase(SOD)activity decreased,but not significantly,the content of proline (Pro)first increased and then decreased,but the changing amplitude of two barley cultivars was not significant.It was indicated that magnesium deficiency or excess had effects on the growth as well as the physiological and biochemical indexes of barley seedlings.关键词
大麦/镁胁迫/生理指标/生化指标Key words
barley/magnesium stress/physiological indexes/biochemical indexes分类
农业科技引用本文复制引用
田斌,胡玉洁,路雪丽,童涛,候琳琳,谭赛琼,陈建明,薛大伟,张晓勤..镁缺乏和过量胁迫对大麦幼苗生长以及生理生化指标的影响[J].杭州师范大学学报（自然科学版）,2018,17(2):146-152,7.基金项目
国家自然科学基金项目(31401316) （31401316）
浙江省自然科学基金项目(LY14C130007) （LY14C130007）
杭州市科委科研项目(20140432B03). （20140432B03）
