干旱地区农业研究2018，Vol.36Issue(2)：186-191,6.DOI:10.7606/j.issn.1000-7601.2018.02.27
干旱胁迫对向日葵种子萌发的影响及其抗旱性鉴定
Effect of drought stress on seed germination of sunflower on and identification of drought resistance of main variety
摘要
Abstract
PEG solution is used to simulate the drought stress .To evaluate and compare the physiological and bio-chemical indicators and the morphology of eighteen sunflower resources materials seeds germination period ,and use the membership function method to make the comprehensive evaluation of drought resistance for the tested materials .The re-sults showed that relative germination rate ,relative germination energy and relative germination indexes were inhibited during bud stage .The relative radical length ,relative germ length ,relative germ dry weight ,relative germination rate , relative germination energy ,relative germination indexes ,relative MDA contents and relative ATP contents are all posi-tively related with the comprehensive evaluation value obviously .These indexes can be used as the identification index of drought resistance in germination .Recombinant inbred lines 88 of eighteen sunflower resources materials are stronger and the comprehensive evaluation value are 1 .49 ,which can be used as the basis of the next step for drought resistance gene materials .This study improved the sunflower seed germination drought resistance identification methods and has certain practical significance and reference value for sunflower breeding .关键词
油用向日葵/干旱胁迫/种子萌发/抗旱性Key words
oil-sunflower/drought stress/seed germination/drought resistance分类
农业科技引用本文复制引用
温蕊,侯建华,张艳芳,吕品,马宇..干旱胁迫对向日葵种子萌发的影响及其抗旱性鉴定[J].干旱地区农业研究,2018,36(2):186-191,6.基金项目
国家自然科学基金项目(31540043,31160288) （31540043,31160288）
