草业科学2011，Vol.28Issue(12)：2143-2149,7.
干旱胁迫下多效唑浸种对多年生黑麦草种子萌发的影响
Effects of soaking seeds with paclobutrazol on seed germination of Lolium perenne under the simulated drought stress
摘要
Abstract
Under the simulated drought stress condition with PEG,the TP method was used to determine the effect of different concentrations of paclobutrazol solution（0,50,100,200,300 and 400 mg/L） on seed germination of seven accessions of Lolium perenne to find out the optimal soaking concentration.This study showed that the paclobutrazol solution soaking seeds of L.perenne had a positive effect on seed germination,seedling quality,root length and root quality and the effectiveness of paclobutrazol firstly increased and then decreased as paclobutrazol concentration increased.However,he paclobutrazol solution soaking seeds significantly inhibited the germ growth of L.perenne（P0.05）,and this inhibition increased with the increase of paclobutrazol concentration under drought stress condition.In summary,100 mg/L paclobutrazol solution soaking seeds was the best for L.perenne to improve drought resistance at the germination phase.关键词
黑麦草/干旱胁迫/多效唑浸种/种子萌发Key words
Lolium perenne/drought stress/paclobutrazol soaking/seed germination分类
农业科技引用本文复制引用
刘芳芳,高洋,赵春旭,赵韦,柴琦,刘照辉..干旱胁迫下多效唑浸种对多年生黑麦草种子萌发的影响[J].草业科学,2011,28(12):2143-2149,7.基金项目
兰州大学中央高校基本科研业务费专项资金 （）
