期刊论文

The Effect of High Temperature and Intensity Light on the Physio-ecological Indexs of Cassia bicapsularis and its Application in the Landscape and Architecture

中文

北方园艺

1001-0009

2010

7

96-99

基金项目：湖南省教育厅科研资助项目（05c332）.

本校为第一机构

对双荚决明的色素、光合和荧光参数的高温强光下的变化进行了测定研究。结果表明：双荚决明的总叶绿素含量相对较高，不同叶位成熟叶片的叶绿素含量相差不大。双荚决明为强阳性植物，其光补偿点为12μmol·m^-2·s^-1，光饱和点为632μmol·m^-2·s^-1，最大的光合速率为5．840μmol·m^-2·s^-1，呼吸速率为0.819μmol·m^-2·s^-1；其CO2补偿点为70．4μmol·mol-1，CO2饱和点为883．2μmol·mol-1。双荚决明的净光合速率的日变化在4月份呈现出单峰曲线，最大值为4．6μmol·m^-2·s^-1，出现在12：00；8月份净光合速率的日变化呈现出双峰曲线，最大值分别出现在12：00时和14：OO时，其最大值...

The contents of pigment, photosynthesis parameters and fluorescence parameters of Cassia bicapsularis were tested. The results showed that the Cassia bicapsularis was sun plant. The light compensation point was 20 μmol·m^-2·s^-1, light saturation point was 632 μmol·m^-2·s^-1 , the maximal photosynthetic rate was 5. 840 μmol·m^-2·s^-1, the respiration rate was 0. 819 μmol·m^-2·s^-1. Its CO2 compensation point was 70. 4μmol·mol-1, CO2 saturation point was 883.2 μmol·mol^-1 The diurnal change of net photosynthetic rate was a single...