水分胁迫下4种冷季型草坪草抗旱性比较研究  

Study on drought resistance of four cool-season turfgrass under water stress

作　　者：初晓辉[1] 岳信龙[1] 任健[1] 陈功[1] 单贵莲[1] 

机构地区：[1]云南农业大学草业科学系,云南昆明650201

出　　处：《草原与草坪》2012年第4期15-19,共5页Grassland and Turf

基　　金：云南省自然科学基金面上项目(2010CD061);云南省教育厅科学研究基金项目(2011Y447);云南农业大学第四届大学生创新创业行动基金项目(无编号)资助

摘　　要：采用盆栽育苗法,研究了4种冷季型草坪草在不同水分胁迫下的抗旱性,结果表明:1)随着水分胁迫程度的加深,4种冷季型草坪草的外观质量和叶片相对含水量显著下降,细胞质膜透性、MDA含量和Pro含量上升。2)模糊数学综合评价结果表明,4种冷季型草坪草种抗旱性能由强到弱的顺序为:高羊茅>多年生黑麦草>草地早熟禾>匍匐翦股颖。Abstract： In this paper, the drought resistance and its ter stress were studied by pot culture method. The results mechanism of four cool--：season turfgrass under wa showed as follows： 1） The appearance quality and leaf relative water decreased with the increase of water stress, however, the cell membrane permeability, MDA and proline content of four cool-season turfgrass increased significantly （P 〈 0. 05）. 2） The ranking of the drought tolerance for four cool-season turfgrass based on the comprehensive evaluation was tall fescue〉perenni- al ryegrass〉bluegrass〉creeping bentgrass.

关 键 词：冷季型草坪草 干旱胁迫 抗旱性 抗旱机理 

分 类 号：S688.4[农业科学—观赏园艺]