16个草地早熟禾品种耐热性能的比较  

Comparisons of Heat Resistance of 16 Kentucky Bluegrass Cultivars

作　　者：湛妲[1] 孙鑫博[1] 濮阳雪华[1] 李晓帅[1] 韩烈保[1] 

机构地区：[1]北京林业大学草坪研究所,北京100083

出　　处：《中国草地学报》2012年第6期54-60,共7页Chinese Journal of Grassland

基　　金：国家林业局"948"项目"转基因植物外源基因高效特异删除技术引进"(2011-4-50)

摘　　要：对北方地区常用的16个草地早熟禾品种进行耐热性比较,结果表明:在昼夜38℃/30℃的高温下,随着胁迫时间的延长,叶片相对电导率总体有所上升,草坪质量、叶绿素含量、叶片相对含水量下降,可溶性蛋白含量呈先下降后上升的趋势。聚类分析结果显示,品种超级歌来德、奖品、午夜、布鲁克耐热性最强。The study was conducted to compare heat resistance of 16 Kentucky Bluegrass.Turfgrass quality,relative electronic leakage,chlorophyll content,soluble protein content and leaf relative water content were determined after heat stress.The results showed that,in a growth condition of 38/28℃（day/night）,as heat stress maintained,leaf relative conductivity increased on the whole.Turf quality decreased and the chlorophyll content was reduced.The same tendency was observed in the leaf relative water content.However,the soluble protein exhibited firstly a decrease,then an increase.Cluster analysis showed that EverGlade,Award,Midnight and Brooklawn had the highest heat tolerance.

关 键 词：草地早熟禾 耐热性 品种 对比 

分 类 号：S688.4[农业科学—观赏园艺]