文献类型：会议论文

英文题名：Photosynthetical and ecophysiological characteristics of Illicium lanceolatum seedlings for different provenances

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 311400, Zhejiang, Peoples R China

会议论文集：1st International Conference on Energy and Environmental Protection (ICEEP 2012)

会议日期：JUN 23-24, 2012

会议地点：Hohhot, PEOPLES R CHINA

语种：英文

外文关键词：Illicium lanceolatum; Photosynthetic characteristics; Diurnal variation; Seasonal dynamics; Different provenances

年份：2012

摘要：The photosynthetic ecophysiological characters of 4 different Illicium lanceolatum provenances in three different growth seasons were measured. The results showed that significant differences of photosynthesis were existed among provenances and their growth seasons. 1) In the early growth period, the decreasing order of the mean daily net photosynthetic rate (P-n) of 4 provenances were Lin'an (LA), Nan'ping (NP), Kai'hua (KH), and Wu'ning (WN) provenance and the order of mean daily transpiration rate (T-r) were LA, KB, NP and WN. In the prosperous growth period, the mean daily P-n ranked as in the decreasing order of WN, KH, LA and NP, and that of mean daily T-r were WN, KB, NP and LA. In the late growth period, the decreasing order of mean daily P-n were LA, KB, WN and NP. 2) I. lanceolatum had the obvious seasonal difference in the average value of P-n and Tr and that was ranked in decreasing order as flourishing growth period>early growth period >late growth period. 3) The path coefficient analysis indicated that the decreasing orders of important factors which affected P-n were temperature of leaf (T-leaf), internal CO2 concentration (C-i), difference of saturation of water vapor (V-pdl), Tr, stomatal conductance (C-ond), temperature of air (T-air)and air CO2 concentration of (C-a).