Photosynthetic characteristics and chlorophy II fluorescence parameters of different populations of Pinellia ternata.
- Author:
Yawen XIAO
1
;
Kangcai WANG
;
Lei YANG
;
Xianhe TAN
;
Zhiqiang XU
Author Information
- Publication Type:Journal Article
- MeSH: China; Chlorophyll; chemistry; Fluorescence; Light; Photosynthesis; Pinellia; chemistry; physiology; radiation effects
- From: China Journal of Chinese Materia Medica 2009;34(11):1339-1342
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the photosynthetic characteristics and chlorophyll fluorescence parameters of Pinellia ternate from different sources, in order to provide basis for cultivation and breeding.
METHODPigment contents were compared among different sources by the Lichtenthaler method. The light-response and diurnal photosynthesis course of P. ternata from different sources were analyzed by LI-6400 system, and chlorophll fluorescence parameters were analyzed by PAM-2100 system.
RESULTThe difference of photosynthetic characteristics among the sources were remarkable. The light compensation point (LCP) of P. ternate from different sources were 11.57-17.88 micromol x m(-2) x s(-1), the light saturation point (LSP) were 1 000-1 300 micromol x m(-2) x (s-1). All the sources have obvious "midday depression". P. ternate cultivated in Xinjiang showed a higher light saturation point (LSP) and better chlorophyll fluorescence parameters.
CONCLUSIONP. ternata cultivated in Xinjiang showed better photosynthetic characteristics and chlorophyll fluorescence parameters than the others.
