热带作物学报2017，Vol.38Issue(12)：2255-2260,6.DOI:10.3969/j.issn.1000-2561.2017.12.010
低温对6份柱花草种质生长的影响及抗冷性评价
Effects of Chilling on the Growth of Six Stylosanthes Accessions and Evaluation of Chilling Resistance
摘要
Abstract
Shoot fresh weight,relative electric leakage,malondialdehyde (MDA) content,chlorophyll concentration and maximum photochemical efficiency (Fv/Fm) of six Stylosanthes (stylo) accessions were investigated under chilling stress (6 ℃).Results showed that the six tested stylo accessions exhibited different responses to chilling stress.The shoots fresh weight,chlorophyll concentration and Fv/Fm of stylo accessions differentially decreased by chilling treatment,while relative electric leakage and MDA content in the leaves of stylo increased under chilling stress.Comprehensive evaluation analysis with subordinate function showed that among the six tested stylo accessions,TF41 exhibited the superior ability of chilling resistance.Taken together,our results not only provide a theoretical basis for dissecting the mechanisms underlying stylo resistant to chilling,but also provide germplasm resources for improving stylo varieties to chilling stress.关键词
柱花草/低温胁迫/抗冷性评价Key words
Stylosanthes/chilling stress/chilling resistance evaluation分类
农业科技引用本文复制引用
陈志坚,彭玺如,罗佳佳,刘攀道,李欣勇,丁西朋,郇恒福,刘国道..低温对6份柱花草种质生长的影响及抗冷性评价[J].热带作物学报,2017,38(12):2255-2260,6.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）
