中国草地学报2026，Vol.48Issue(5)：23-32,10.DOI:10.16742/j.zgcdxb.20250298
8个高羊茅品种在上海地区的高温适应性研究
High-Temperature Adaptability of Eight Festuca arundinacea Cultivars in Shanghai
摘要
Abstract
To address the summer survival challenges of cool-season turfgrass in the Yangtze River Delta region,this study systematically evaluated the heat tolerance of eight tall fescue(Festuca arundinacea Schreb.)cultivars under extreme high-temperature conditions in Shanghai.Principal component analysis(PCA)and other methods were used to condense the 12 indicators to three principal components.Root expansion capacity(root length,root surface area,root volume)and branching complexity(number of root tips,number of root forks)were identified as the primary indicators for assessing heat adaptation,followed by growth vigor(greenness,coverage,aboveground biomass,root-to-shoot ratio,etc.)and vertical struc-tural traits(turf height and root biomass,etc.).Based on comprehensive evaluation,the cultivars'Vertex','Police Chief',and 'Tahuo No.2' demonstrated the best heat tolerance performance.During high-temperature stress,these three cultivars showed increases of 10.72%-16.00%in coverage,3.64%-8.53%in greenness,31.75%-133.47%in aboveground biomass,and 42.41%-104.01%in root biomass compared with the poorest-performing cultivars.Moreover,their root architecture parameters showed small fluctua-tions,and turf height remained below 100 mm,exhibiting stable root development with dwarf characteris-tics.These cultivars therefore represent promising candidates for evergreen turfgrass use in Shanghai.关键词
高羊茅/高温适应/品种筛选/坪用指标/根系构型/主成分分析Key words
Festuca arundinacea/High-temperature adaptability/Cultivar screening/Turf performance indicators/Root architecture/Principal component analysis分类
农业科技引用本文复制引用
朱晨旭,成文竞,邢强..8个高羊茅品种在上海地区的高温适应性研究[J].中国草地学报,2026,48(5):23-32,10.基金项目
上海市科委科技创新行动计划项目"应对大客流的大型公共绿地可持续绿化技术研究与示范"(18DZ1204700) （18DZ1204700）
上海农林职业技术学院中青年领军人才培养计划项目(A6-02RS-23-36) （A6-02RS-23-36）
