热带作物学报2017，Vol.38Issue(10)：1790-1795,6.DOI:10.3969/j.issn.1000-2561.2017.10.004
不同柱花草种质的抗旱性分析
Analysis of Drought Resistance in Six Stylosanthes Accessions
摘要
Abstract
Plant growth and drought resistance of six Stylosanthes guianensis (stylo) accessions were investigated under 15％ PEG-induced drought stress in hydroponics.Results showed that plant biomass,root growth,chlorophyll concentration (SPDA) and the maximum photochemical efficiency (F/Fm) of stylo accessions were differentially inhibited by 15％ PEG treatment,whereas malondialdehyde (MDA) content in stylo increased under drought stress.Comprehensive analysis showed that TF227 and TF210 exhibited the superior ability of drought stress resistance,followed by R2 and R5,while TF226 and TF224 were susceptible stylo accessions.Furthermore,the changes in plant fresh weight,shoot fresh weight,MDA content,SPDA and F /Fm were regarded as the reference indices used for the evaluation of drought resistance in stylo.关键词
柱花草/干旱胁迫/抗旱性/综合评价Key words
Stylosanthes/drought stress/drought resistance/comprehensive evaluation分类
农业科技引用本文复制引用
陈志坚,罗佳佳,彭玺如,刘攀道,郇恒福,刘国道,白昌军..不同柱花草种质的抗旱性分析[J].热带作物学报,2017,38(10):1790-1795,6.基金项目
国家牧草产业技术体系岗位科学家项目(No.CARS-35) （No.CARS-35）
海南省自然科学基金项目(No.317268) （No.317268）
中国热带农业科学院基本科研业务费专项资金(No.1630032017045、1630032016010、 1630032017082)和物种品种资源保护项目. （No.1630032017045、1630032016010、 1630032017082）
