不同光照强度下翦股颖草坪质量变化动态  

Changes of Turf Quality of Bentgrass under Different Light Intensity

作　　者：杨志民[1] 李志华[2] 

机构地区：[1]南京农业大学草坪研究与开发工程技术中心,江苏南京210095 [2]南京农业大学动物科技学院,江苏南京210095

出　　处：《中国草地学报》2008年第1期87-92,共6页Chinese Journal of Grassland

基　　金：国家科技支撑计划(2006BAD01A19-4-5)

摘　　要：在南京地区夏季高温季节,采用自然光照(日最大光强1900μmol/m2.s左右)、轻度遮荫(日最大光强1100μmol/m2.s左右)、中度遮荫(日最大光强550μmol/m2.s左右)和重度遮荫(日最大光强90μmol/m2.s左右)4种光照强度,对7个翦股颖品种的草坪质量性状指标进行观测。结果表明,在日最大光强>550μmol/m2.s范围内,7个供试品种的草坪质量均随光强减弱而提高,品种间相比,南选1号和L-93的草坪质量较好,品种高地草坪质量最差;在日最大光强低于90μmol/m2.s的环境下,各品种草坪质量均极差,应选择更耐荫抗热的地被植物。The turf quality characteristic indexes of bentgrass were researched under natural righting maximum daily light intensity is about 1900 μmol/m^2·s） and slight shading （maximum daily light intensity is about 1100 μmol/m^2·s） and medium shading （maximum daily light intensity is about 550 μmol/m^2·s） and heavy shading （maximum daily light intensity is about 90 μmol/m^2·s） in summer in Nanjing. The results of the experiment indicated that turf quality of seven experimental varieties increased with shade density increasing when maximum daily light intensity was more than 550 μmol/m^2·s. The turf quality of ＇L-93＇ and ＇Nau 1＇ was better than other varieties, and the turf quality of ＇ Highland＇ was the worst among seven experimental varieties within the scope of maximum daily light intensity more than 550 9mol/m^2·s . When maximum daily light intensity was less than 90μmol/m^2·s, the turf quality of seven experimental varieties was wondrously bad and more heat and shade resistant ground cover should be used instead.

关 键 词：草坪草 翦股颖 光照强度 草坪质量 

分 类 号：S688.4[农业科学—观赏园艺]