甘肃农业科技Issue(8)：25-27,28,4.DOI:10.3969/j.issn.1001-1463.2014.08.010
PEG模拟干旱胁迫对亚麻种子萌发及幼苗生长的影响
Effects of PEG-simulated Drought Stress on Seed Germination and Seedling Growth of Linum usitatissium L
摘要
Abstract
Three PEG-6000 concentrations (20%,25% and 30%)simulated drought stress were used in this study to test its influence on the seed germination and seedling growth characters of Linum usitatissium L. ( Longya-8). The results showed that the seed germination rate declined rapidly at the 20% PEG concentration,and as well as the seedling total weight of stems and leaves, taproot length and the pigment concentrations,and the MDA concentration increased rapidly,indicating a serious adverse effect of drought stress at 20% PEG concentration to Linum usitatissium L. seed germination and seedling growth. Along with the rising PEG concentration,the lateral root numbers and the soluble sugar contents increased. The results indicated that Linum usitatissium L. may enhance its drought resisting ability by increasing the lateral root numbers and leaf soluble sugar contents at drought stress.关键词
PEG 干旱胁迫/种子萌发/幼苗生长/亚麻Key words
PEG drought stress/Seed germination/Seedling growth/Linum usitatissium分类
农业科技引用本文复制引用
刘风,侯勤正..PEG模拟干旱胁迫对亚麻种子萌发及幼苗生长的影响[J].甘肃农业科技,2014,(8):25-27,28,4.基金项目
国家自然科学基金（31360044）部分内容 （）
