文献类型：期刊文献

英文题名：Diurnal changes in photosynthesis and antioxidants of Angelica sinensis as influenced by cropping systems

作者：Zhang, X. H.[1,2,3];Lang, D. Y.[4];Zhang, E. H.[2];Bai, C. C.[1];Wang, H. Z.[5]

第一作者：Zhang, X. H.

通信作者：Zhang, EH[1]

机构：[1]Ningxia Med Univ, Coll Pharmacol, Yinchuan 750004, Peoples R China;[2]Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China;[3]Ningxia Engn & Technol Res Ctr Modernizat Hui Med, Yinchuan 750004, Peoples R China;[4]Ningxia Med Univ, Lab Anim Ctr, Yinchuan 750004, Peoples R China;[5]Gansu Coll Tradit Chinese Med, Lanzhou 730000, Peoples R China

第一机构：Ningxia Med Univ, Coll Pharmacol, Yinchuan 750004, Peoples R China

通信机构：[1]corresponding author), Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China.

年份：2013

卷号：51

期号：2

起止页码：252

外文期刊名：PHOTOSYNTHETICA

收录：;Scopus(收录号：2-s2.0-84876900973);WOS:【SCI-EXPANDED(收录号:WOS:000318282600010)】；

基金：This research was supported by the Natural Science Foundation of China (31060182), Agricultural Biotechnology Research and Application Development of Gansu Province (GNSW-2010-18) and the Natural Science Foundation of Ningxia Hui Autonomous Region (NZ10109).

语种：英文

外文关键词：Angelica sinensis; antioxidant enzyme activity; continuous cropping; growth parameters; photosynthesis

摘要：Diurnal dynamics of photosynthetic character of Angelica sinensis, as well as effect of continuous cropping on leaf photosynthetic character, antioxidant enzyme activity and growth of A. sinensis were investigated under field condition. The results showed that the diurnal net photosynthetic rate of A. sinensis in sunny day exhibited a double-peak pattern, and the peaks occurred at 9:45 and 16:45 h, respectively. There was a significant midday depression with A. sinensis, which was caused principally by stomatal factors such as stomatal conductance. The results also showed that net photosynthetic rate (P (N)), transpiration rate (E), stomatal conductance (g (s)), intercellular CO2 concentration (C (i)), and chlorophyll content (Chl) of A. sinensis plants under continuous cropping were significantly lower than those of the control. The activity of total superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), and growth parameters of A. sinensis plants were significantly decreased under continuous cropping condition. This study provides evidence of continuous cropping obstacle effect on photosynthesis, antioxidant enzyme activity, and growth parameters of A. sinensis in a field experiment, which partly explained the yield reduction of A. sinensis in the field, when it was cultivated continuously on the same soil.