文献类型：期刊文献

英文题名：The photosynthetic physiological properties of Illicium lanceolatum plants growing under different light intensity conditions

作者：Cao, Yonghui[1] Zhou, Benzhi[1] Chen, Shuanglin[1] Xiao, Jianghua[1] Wang, Xiaoming[1]

第一作者：曹永慧

通信作者：Cao, YH[1]|[a0005fc8f50805baece6f]曹永慧;

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang, Zhejiang, Peoples R China

年份：2011

卷号：6

期号：26

起止页码：5736-5741

外文期刊名：AFRICAN JOURNAL OF AGRICULTURAL RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000298504900008)】；

基金：This work was supported by the project about I. lanceolatum research and a grant from Science and Technology Department of Zhejiang Province, China. This work was also supported by Gene Company Limited. We also thank Qianjiangyuan Forest Ecosystem Research Station for support of field work.

语种：英文

外文关键词：Illicium lanceolatum; light environment; photosynthetic properties

摘要：In this study, the photosynthetic properties and CO2 conductance of four-year old plants of Illicium lanceolatum were measured under three different light conditions (full light, half shadow and shadow) treatments. The results show that during the peak growth season, compared to those under full light, plants growing under half shadow light condition had the highest net photosynthetic rate (P-n), water usage efficiency and higher solar energy utilization efficiency (SUE), these plants had the lowest transpiration ratio (T-r) which was the strategy for achieving high photosynthesis and water utilization efficiency. Partial shading has improved SUE of plants. For plants growing under all of three light conditions, the light saturation point (LSP) increased initially then declined in response to increasing light intensity. Light compensation point (LCP) declined when plants were growing under shaded condition with less amount of light. The daily maximum value of net photosynthetic rate (P-max) and the apparent quantum yield (AQY) decreased in the order of half shadow> shadow> full light. There are significant differences (p <= 0.05) among the three light conditions. Plants growing under half shadow had the highest light utilization efficiency. Results from this study indicate that half shadow light condition is the most suitable light condition for I. lanceolatum. The partial shade environment promoted rapid growth and accumulation of biomass of the species. This study provided the scientific bases for domestication and cultivation of shikimic acid rich plants.