草业学报Issue(6)：253-258,6.DOI:10.11686/cyxb20140630
多效唑对6种草坪草苗期抗旱性影响的研究
Effect of paclobutrazol on drought resistance of six turfgrass cultivars during the seedling stage
摘要
Abstract
The wide use of turfgrass in urban landscaping has resulted in an increased water requirement for ma-intenance and management.A pot experiment was conducted to determine the physiological effects of different concentrations of paclobutrazol (PP333)on drought resistance of six turfgrass cultivars:two each of perennial ryegrass (Bomber and Esquire),red fescue (Beifang and Rubra)and kentucky bluegrass (Kentucky and Mer-it).Different concentrations of PP333 significantly increased the RWC,chlorophyll content and SOD activity, but decreased leaf relative electrical conductivity and proline content 30 d after drought stress,indicating that PP333 could effectively enhance the vitality and drought resistance of the six turfgrass cultivars.The optimal concentration of PP333 to increase the drought resistance was 100 mg/L for Esquire,Beifang and Rubra,200 mg/L for Bomber and Kentucky,and 300 mg/L for Merit.关键词
草坪草/多效唑/干旱胁迫/抗旱性Key words
turfgrass/PP333/drought stress/drought resistance分类
农业科技引用本文复制引用
王竞红,多多..多效唑对6种草坪草苗期抗旱性影响的研究[J].草业学报,2014,(6):253-258,6.基金项目
中央高校基本科研业务费专项资金项目（2572014CA27）资助。 （）
