不同草坪草叶绿素含量变化及其与绿度的关系

于6个不同的时间，测定草地早熟禾8个品种的叶绿素含量，分析草坪草叶绿素含量的季节变化，叶不同部位叶绿素含量变化，以及叶绿素含量与绿度评分的相关性。研究表明：草坪草叶绿素含量在完全返青期最高，生长较弱时低；草坪草叶绿素含量从叶尖到叶基部依次降低；草坪草叶绿素含量越高，其颜色越浓绿，反之，颜色越淡。修剪对草坪草叶绿素含量有较大的影响，同时也发现草坪草叶绿素含量与绿度评分量化分值有较好相关性。

Dynamics variation of turfgrass chlorophyll content and the relationship between chlorophyll content and greenness

Chlorophyll content of 8 Kentucky bluegrass varieties were extracted and analyzed at 6 different time points,and variation of chlorophyll contents and the relationship between chlorophyll content and turfgrass were analyzed in different seasons and leaf positions.The results showed chlorophyll contents of turfgrass were the highest in completely turning green period;they became low when growing weak.However,they gradually reduced from the leaf base to tip.The color of grasses was greener when chlorophyll co...