草业科学2012，Vol.29Issue(7)：1094-1099,6.
内生真菌侵染对盐胁迫下黑麦草种子萌发的影响
Effects of endophytic fungi on seed germination of perennial ryegrass under salt stress
摘要
Abstract
To evaluate the effect of salinity and endophytic fungi on seed germination of Lolium perenne, 8 perennial ryegrass varieties with high endophyte infection rate （≥80%） and 8 varieties with low rate （≤20%） were used for germination experiment under salinity stress. The results of this study showed that the relative germination rate （RGR）, relative vitality index （RVI）, relative root length （RRL）, relative shoot length （RSL） and relative root/shoot ratio （RRS） decreased with increasing NaCl concentrations. There was no significant difference observed in RGR, RVI, RRL and RSL between high and low infection rate under 0, 85, and 170 mmol·L^-1 NaCl stress, while RGR, RVI, and RSL of seeds with high infection rate were significantly （P〈0.05） higher than that of low infection rate under 255 mmol·L^-1 NaCl stress. In a word, seed germination of perennial ryegrass was inhibited by salt stress, but endophyte infection could benefit seed germination under high salinity condition.关键词
多年生黑麦草/盐胁迫/种子萌发/内生真菌Key words
perennial ryegrass/salt stress/seed germination/endophytic fungi分类
农业科技引用本文复制引用
张萍萍,胡龙兴,傅金民..内生真菌侵染对盐胁迫下黑麦草种子萌发的影响[J].草业科学,2012,29(7):1094-1099,6.基金项目
公益性行业（农业）科研专项 （）
